WO2007077642A1

WO2007077642A1 - Battery cover and method of absorbing leaked liquid

Info

Publication number: WO2007077642A1
Application number: PCT/JP2006/312989
Authority: WO
Inventors: Teruaki Matsushita
Original assignee: Teruaki Matsushita
Priority date: 2005-12-28
Filing date: 2006-06-29
Publication date: 2007-07-12

Abstract

A method of absorbing leaked liquid by using a battery cover that is expandable and has ability of absorbing leaked liquid. In the method, the battery cover is made to be in intimate contact with a battery by using an annular section having an engagement hole, a bend, or an inner cavity to efficiently absorb the leaked liquid from the battery. When required, the thickness of the battery cover is reduced by compression forming or by adding a gelatinizing agent to the cover. This facilitates the installation of a battery with the battery cover into a battery installation section and enables the battery cover to absorb leaked liquid while the cover swells and expands. Further, at least a part of the batter cover is made pervious to leaked liquid, and this enables not only the battery cover installed on a battery having leakage but also the battery cover installed on a battery having no leakage to transmit and absorb leaked leakage via the outer surface of the cover.

Description

Battery cover and leakage liquid absorption method

Technical field

[0001] The present invention relates to a battery such as a manganese dry battery, an alkaline dry battery, a nickel primary battery, a nickel hydride battery, a nickel cadmium battery, or a lead storage battery using an aqueous electrolyte, and a lithium using a non-aqueous electrolyte. The present invention relates to a battery cover and a leakage liquid absorbing method for reducing damage to equipment caused by battery leakage such as batteries and lithium ion batteries.

Background art

Conventionally, there are methods, devices, and the like for preventing or reducing damage to battery-operated equipment due to battery leakage (also referred to as “leakage”). For example, there is a method in which the leaking liquid absorbing member is arranged near the battery, wound around the battery, or in the form of a sheet and arranged near the wiring board. Also disclosed is a technique regarding a socket-type battery cover for preventing leakage of battery power from leaking to the device used (see, for example, Patent Document 1).

Patent Document 1: Japanese Patent Laid-Open No. 2003-272580

Disclosure of the invention

Problems to be solved by the invention

[0003] However, it is difficult to dispose a sheet-like leakage absorbing member near the wiring board after purchasing battery-powered devices. Simply placing the leakage absorbing member near the battery or wrapping it around the battery The problem is that a sufficient contact surface for absorbing leaked liquid cannot be secured, and the problem of loosening will occur. For example, when vibration is transmitted to the battery loading site, when the battery is inserted in the long axis direction of the battery with respect to the battery loading site, or when the battery with the leakage absorbing member is left for a long period of time, etc. Problems are likely to occur. In other words, when battery power leakage occurs, the battery and the leakage absorbing member are in close contact with each other for a long time because the battery can be absorbed into the battery loading site and the leakage is often absorbed. If it cannot be secured sufficiently, the risk of leakage of the leakage to the wiring board increases.

[0004] Further, in order to prevent leakage liquid from leaking out of the cover as in the conventional battery cover. In order to achieve this, the cover must be sealed. Therefore, the accuracy of the shape and the sealing treatment after the battery is stored in the cover are required, which increases the manufacturing cost and the burden on the user.

[0005] In addition, in order to keep the leaked liquid inside the cover, it is necessary to ensure a certain amount of cover content in addition to the sealing performance. However, the increase in the internal volume leads to an increase in the size of the entire cover, and for example, a battery with a cover attached cannot be stored in the battery case of the device.

[0006] On the other hand, the reduction of the internal volume reduces the amount of leaked liquid that can be retained, which requires a higher degree of sealing performance and robustness of the cover. This also increases the manufacturing cost.

[0007] Currently, there are many devices that use batteries around us, and the total number of batteries used in these devices is also large. It is not realistic to purchase expensive battery covers because of the leakage of liquids that may or may not occur in many of these batteries.

[0008] Batteries are also used in devices such as radios and flashlights that are needed in times of disaster, and it is important to reduce the damage caused by battery leakage in these battery-powered devices.

[0009] However, even if there is a battery cover that can completely prevent damage to the device due to all possible liquid leaks, if it is expensive, the purchase rate will not increase and the battery cover mounting rate will not increase. . For this reason, it is not possible to reduce the rate of liquid leakage damage in the entire battery-powered equipment.

[0010] In addition, the battery cover having a high sealing property has a problem that it is useful for preventing leakage of leakage liquid from batteries other than the attached battery to the wiring board.

[0011] In consideration of the above-mentioned problems, the present invention is inexpensive and easy to install, and has been manufactured for a long time with a leaked liquid absorbing member for preventing or reducing damage to battery-operated equipment due to battery liquid leak. It is an object of the present invention to provide a battery cover that can be in close contact with a battery and a leakage liquid absorbing method.

Means for solving the problem

[0012] In order to solve the above-described problems, the battery power leakage liquid absorption method of the present invention is such that the battery cover that absorbs the leakage liquid from the battery has a stretchability and a leakage liquid absorption capacity, and the positive electrode of the battery Convexity Or at least one of a locking hole for using the convex portion of the negative electrode or the negative electrode for locking, and at least one of a bent portion for using the cylindrical shape or rectangular parallelepiped shape of the battery for locking. Because it is formed in an annular shape with an internal space that is impossible to insert the corresponding battery unless it is stretched, it can be attached to the battery, and the shrinkage derived from the stretchability described above A leakage absorbing method for absorbing the leakage of the battery force by bringing the battery cover into close contact with the battery by force, the step of attaching the battery cover to the battery while extending the battery cover; A step of sealing the battery by contraction force, a step of loading the battery with the battery cover attached to a battery loading portion of a battery-using device, a step of discharging the battery force and the leakage liquid, A leakage absorbing solution from the battery, wherein the leakage solution is absorbed by the battery cover.

[0013] As described above, the method for absorbing leakage liquid from the battery according to the present invention has a locking hole in which the battery cover has stretchability and leakage liquid absorption, and the convex portion of the battery electrode is used for locking. And a force that is integrally formed with at least one of the bent portions for utilizing the shape of the battery for locking, and by being formed into an annular shape having an inner space that allows insertion of the battery if extended. It can be attached to the battery, and the leakage force absorbing method can absorb the leakage liquid from the battery by increasing the contact area by bringing the battery cover into close contact with the battery by the contraction force derived from the stretchability. In other words, the method for absorbing leaked liquid from the battery according to the present invention is a leaked liquid absorbing member having stretchability and leaked liquid absorbability, and absorbs the leaked liquid with a battery cover manufactured so as to be in close contact with the battery. The leakage liquid absorption method can be used. Further, the inner shape of the battery cover may be a quadrangular prism shape other than a cylindrical shape, an irregular polyhedral shape, or the like. If the battery cover can be brought into close contact with the battery inserted into the inner space due to the contraction force derived from stretchability, the shape of the inner space is not limited.

[0014] The battery cover made of the leaked liquid absorbing member described in the present invention can be closely attached to the battery by a locking hole or a bent portion by adjusting the size of the battery cover. In other words, when the battery cover is attached to the battery using a locking hole or a bent portion for use in locking, the battery cover must be made to a size that cannot be attached to the battery unless the battery cover is extended. Due to the stretchability of the battery cover when mounted using the bent holes The shrinkage force that makes it possible for the battery cover to come into close contact with the battery, and the leaked liquid flows out between the battery cover and the battery. The same applies to a battery cover made of a leaked liquid absorbing member to be described later.

[0015] Further, in the leakage liquid absorbing method, the battery cover is further compressed for thinning, and when the leakage liquid is absorbed by the battery cover, the battery cover swells and expands. The method further includes a step of spreading in a gap between the battery and the battery loading portion.

As described above, the method for absorbing leakage liquid from the battery according to the present invention further includes charging the battery with the battery cover mounted thereon by compressing the battery cover to further reduce the thickness and increase the liquid absorption. It is possible to facilitate the loading into the site, and to absorb the leaked liquid while the battery cover expands and expands in the gap between the battery and the battery loading part.

[0017] Further, in the leakage liquid absorption method, the battery cover further includes a gelling agent that swells and expands when absorbing the leakage liquid, and when the leakage liquid is absorbed by the battery cover, The battery cover may further include a step of gelling, swelling and expanding, and spreading into a gap between the battery and the battery loading portion.

As described above, the method for absorbing leakage liquid from the battery according to the present invention can absorb a large amount of leakage liquid even if the thickness of the battery cover is reduced by using the battery cover containing a gelling agent. In addition, it is easy to load the battery loaded with the battery cover into the battery loading site, and the battery cover can swell and expand into the gap between the battery and the battery loading portion, and can absorb the leaked liquid. . That is, a gelling agent such as dry agar gels by increasing its volume while absorbing water, so that it can swell and spread in the surrounding gaps while absorbing leaking liquid.

[0019] In addition, in order to solve the above-described problem, the method for absorbing leakage liquid from a battery according to the present invention has the above-described outer surface in which at least a part of the outer surface of the battery cover has leakage liquid permeability. A leakage liquid absorbing method for absorbing leakage liquid of unspecified battery power by using a plurality of the battery covers and a plurality of the batteries, at least a part of which has leakage liquid permeability, and extending the battery cover. While attaching to the battery, the battery cover being in close contact with the battery by the contraction force derived from the stretchability, and the outer surface A step of loading a plurality of the batteries having the battery cover mounted on a battery loading portion of a battery-operating device with the portions having leakage liquid permeability facing each other, and a step of flowing out the unspecified battery power leakage liquid A step of absorbing the leaked liquid in the battery cover attached to the leaked battery; a step of swelling and expanding the battery cover and spreading the gap around the battery and the battery loading unit; The leakage liquid is transmitted to and absorbed by the battery cover attached to the battery that has not leaked through the portion of the outer surface having leakage permeability. The leakage liquid absorption method can be used.

[0020] According to this method, there are stretchability and leakage liquid absorption, and the locking hole for using the convex portion of the battery electrode for locking and the cylindrical or rectangular parallelepiped shape of the battery are used for locking. Can be attached to a battery because it is formed in an annular shape with an internal space that is impossible to insert the corresponding battery unless it is extended and has at least one of the bent parts. The thickness is reduced by compressing or adding a gelling agent, and at least a part of the outer surface is permeable to leaking liquid. The leaked liquid is also transferred to the battery cover attached to the battery that has not leaked through the outer surface of the outer surface, and the battery cover is continuously placed around the battery and the battery loading section. Swells and expands in the gaps However, it becomes possible to absorb the leaked liquid. In addition, since the battery cover is made thin and can swell and expand due to absorption of the leaked liquid, it has leaked liquid permeability even without compression processing or the addition of a gelling agent. If the outer surfaces are in contact with each other, it is possible to transmit the leaked liquid through the outer surface having the leaky liquid permeability. If it is possible to swell and expand while absorbing the leaked liquid, The degree of adhesion between the battery covers is improved, making it easier to transmit leaked liquid.

[0021] In addition, the leakage liquid absorption method includes a plurality of battery covers that are compressed for thinning or include a gelling agent, and at least a part of the outer surface has leakage liquid permeability. If the battery power bars are not in contact with each other when the battery is loaded in a battery loading part of a device using a plurality of batteries, the battery cover mounted on the battery that has generated the leaked liquid swells. Enlarging the step of contacting a nearby battery cover As a leakage liquid absorption method characterized by including in に.

[0022] By this method, compression processing or addition of a gelling agent has been made to reduce the thickness, and a plurality of batteries equipped with a battery cover in which at least a part of the outer surface has a leakage liquid permeability are loaded into the battery. Even if the battery covers are not in contact with each other when the battery cover is loaded, if the distance between the battery covers is not too far apart, the parts with the leakage liquid permeability on the outer surface face each other and the battery loading part As long as the battery cover is loaded, the battery cover that has absorbed the leaked liquid swells and expands, making it possible to come into contact with a nearby battery cover, and the leaked liquid from an unspecified battery can penetrate the leaked liquid on the outer surface. The battery cover that is attached to the battery that has not leaked is transmitted to the battery cover that has not leaked, and at the same time, the battery cover swells and expands into the gap between the battery and the battery loading part. Transmitting liquid It is possible to become.

[0023] Further, in the leakage liquid absorbing method, when the battery cover has leakage liquid permeability at least part of the outer surface, a plurality of the batteries with the battery cover attached are loaded into the battery loading portion. Thereafter, an auxiliary absorber that absorbs leakage liquid other than the battery cover attached to the battery is placed opposite to the outer surface of the battery cover so as to have leakage liquid permeability of the battery cover. It is good also as a leakage liquid absorption method characterized by including the step which the said auxiliary absorber absorbs the said leakage liquid through the said outer surface which has leakage liquid permeability.

[0024] By this method, after a plurality of batteries in which a battery cover having at least a part of the outer surface having leakage liquid permeability is mounted in the battery loading portion, the leakage liquid permeability of the battery cover is obtained. By placing an auxiliary absorber other than the battery cover attached to the battery, facing the outer surface of the battery, the auxiliary absorber absorbs the leaked liquid from the battery through the part of the outer surface of the battery cover that is permeable to the leaked liquid. It becomes possible to do. In addition, it is possible to transmit the leaked liquid to the auxiliary absorber, which has a leaked liquid permeability even if the battery cover is thinned without compression processing or the addition of a gelling agent. However, if the battery cover can swell and expand while absorbing the leaked liquid, the degree of adhesion between the battery cover and the auxiliary absorber is improved, and the leaked liquid is easily transmitted.

[0025] Further, the leakage liquid absorbing method further includes the leakage liquid from the battery causing leakage. A leakage absorbing method for reducing the leakage rate of the battery, wherein the battery cover attached to a battery that is not leaking and has sufficient power remaining absorbs the leakage and the power remains sufficiently. By short-circuiting the positive and negative electrodes of the battery, power is consumed at an early stage, the load voltage applied to the leaking battery is lowered, and the leakage rate of the leaked liquid from the leaking battery It is also possible to provide a leakage liquid absorbing method characterized by including a step of reducing the amount of the leakage.

[0026] By this method, a plurality of batteries having a battery cover in which at least a part of the outer surface is permeable to leakage liquid are loaded into the battery loading portion with the portions having the leakage liquid permeability on the outer surface facing each other. In this case, the leakage liquid force from unspecified batteries is transmitted to the battery covers attached to the batteries that have not leaked, one after another, through the part of the outer surface that has leakage permeability. The cover absorbs the leaked liquid and is attached to the battery with sufficient power! The battery cover absorbs the leaked liquid to the positive electrode and the negative electrode, and the battery cover comes into contact with the positive and negative electrodes of the battery. As a result, the contact part between the positive electrode and the negative electrode is made of a member that can absorb the leaked liquid, and as a result, the contact part between the positive electrode and the negative electrode is made of the conductive member when absorbing the leaked liquid. Power by By short-circuiting the positive electrode and negative electrode of the battery that remains sufficiently, power is consumed quickly, the load voltage applied to the leaking battery is reduced, and the leakage of the leaking battery power By reducing the leak rate, it is possible to reduce the risk of spilled liquid flowing into the wiring path. Of course, if a part of the battery cover has electrical conductivity, if the leakage liquid is absorbed into the battery cover so that the conductive part and the leakage liquid short-circuit the positive electrode and negative electrode of the battery, The battery can be short-circuited.

[0027] Further, the leakage liquid absorption method further includes providing a non-conductivity to a portion of the battery cover that contacts at least one of the positive electrode and the negative electrode of the battery, thereby causing leakage from the battery. A leakage absorbing method for preventing a short circuit between a positive electrode and a negative electrode of another battery due to the leakage liquid, wherein the battery cover attached to a battery that does not leak and has sufficient remaining power Even if the leaked liquid is absorbed in the range of the positive electrode and the negative electrode, it may include a step of preventing a short circuit between the positive electrode and the negative electrode by not short-circuiting the positive electrode and the negative electrode of the battery in which sufficient power remains. . [0028] Like this method, the battery cover is attached to a battery in which sufficient electric power remains by providing non-conductivity to the portion of the battery cover that contacts at least one of the positive electrode and the negative electrode of the battery. Even if the cover absorbs the leakage from the positive electrode to the negative electrode, it is possible to prevent a short circuit between the positive electrode and the negative electrode, and to prevent troubles such as heat generation and ignition.

[0029] Further, this leakage liquid absorption method is also effective as a leakage liquid absorption method from other objects besides the leakage liquid absorption from the battery.

[0030] For example, at least a part of the outer surface has a leakage absorbing ability, and is prepared by adding a gelling agent that swells and expands when absorbing the leakage liquid that is compressed for thinning. A leaked liquid absorbing method using a leaked liquid absorbing member having a leaked liquid absorbing ability, the step of installing or installing the one leaked liquid absorbing member in a place that can be a leak source, and the one leaked liquid absorbing method The part having the leakage liquid absorption capacity on the outer surface of the one leakage liquid absorption member and the leakage liquid absorption capacity of the outer surface of the second leakage liquid absorption member in a place different from the place where the member is mounted or installed Mounting or installing the second leaking liquid absorbing member with the portions facing each other and separating the space without contacting the one leaking liquid absorbing member; and the leaking liquid from the leak source The leakage absorbing member absorbs and expands the swelling. And the step of the swelling and expansion of the one leakage liquid absorbing member contacting the second leakage liquid absorption member, and the outer surface of the one leakage liquid absorption member to the outer surface of the second leakage liquid absorption member The leaked liquid absorption method may include a step of transmitting the leaked liquid and a step of the second leaked liquid absorbing member absorbing the leaked liquid to swell and expand.

[0031] By this method, the leaked liquid absorbing member attached to the pipe in which leakage occurred when the liquid in the pipe such as the water supply pipe, drain pipe, liquid supply pipe, drainage pipe, and cooling pipe leaked outside the pipe The leaked liquid absorbing member installed in a remote place other than can also absorb the leaked liquid. In addition, by reducing the thickness of the leaked liquid absorbing member by compressing or adding a gelling agent, if there is no leakage, the air permeability near the pipe will not be impaired, and there will be an obstacle to cleaning and piping work. Therefore, it is an effective method for absorbing leakage liquid. Of course, if there is a possibility that the liquid leaks even with things other than the battery or the tube, the leaked liquid is absorbed and expanded by contacting the other leaked liquid absorbing member by transferring the leaked liquid. Leakage fluid transmission sucking while absorbing It is possible to use a collection method. In addition, it is a place where it is difficult for the leaked liquid to ooze out to the outer surface by giving the leaked liquid absorption capability only to a part of the outer surface of the leaked liquid absorbing member and applying an impervious coating to the other part of the outer surface. The leakage liquid can be transmitted and absorbed by the separated leakage liquid absorbing member. In this case, the leaked liquid absorbing member can transmit and absorb the leaked liquid as long as the leaking liquid absorbing member has the capability of absorbing the leaked liquid even in the part of the outer surface that faces the leaked liquid absorbing member. This transfer absorption generates leaked liquid, and can also be performed between leaked liquid absorbing members installed in a place, and transmission and absorption can be performed one after another. In addition, transmission force can be absorbed even if the front force leaking liquid absorbing member that generates leaking liquid is in contact.

[0032] In addition, it is not absolutely necessary to have a hollow interior such as a columnar shape or a quadrangular prism shape in order to bring the battery into close contact with the battery cover. Thus, it is possible to attach the battery cover in close contact with the battery. For example, even with a simple strip-shaped leaked liquid absorbing member having locking holes at both ends for locking using the convex part of the positive electrode of the battery, the leaked liquid absorbing member is wound around the battery once. It is possible to make it adhere as a cover by locking. If necessary, if a negative-polarity through-hole is created, the leakage absorbing member will not interfere with the energization. However, it is possible to improve the degree of adhesion and the ratio of the contact surface by having both the inner space and the locking portion. In other words, when making a battery cover with a leaking liquid absorbing member, it is possible to attach it to the battery as long as it has either the inside space for inserting the battery or the locking part for locking to the battery. However, if both are present, the degree of adhesion and the adhesion surface increase, so the effect of suppressing the leakage of the leaked liquid is enhanced.

The invention's effect

[0033] By using the battery cover and the leaked liquid absorption method for preventing or reducing damage to the battery using device due to the battery leak of the present invention, the leaked liquid can be removed using the gap between the battery and the battery loading part. It becomes possible to absorb efficiently. In addition, when there is a large amount of leakage from the battery, the leakage of the leakage liquid to the wiring route can be reduced by absorbing the leakage liquid in the battery cover attached to the battery that has not leaked. It becomes possible. In addition, the leaked liquid absorbing member and the leaked liquid absorbing method of the present invention can be applied to reduce the risk of leakage of leaked liquid from pipes other than batteries. Brief Description of Drawings

FIG. 1 is a diagram showing an overview of a battery cover according to a first embodiment.

FIG. 2 is a diagram showing a method for attaching the battery cover of Embodiment 1 to a cylindrical battery.

FIG. 3 is a diagram showing an overview of the battery cover according to the second embodiment.

FIG. 4 is a diagram showing a method for attaching the battery cover of the second embodiment to a cylindrical battery.

FIG. 5 is a diagram showing an overview of the battery cover according to the third embodiment and a procedure for attaching it to a cylindrical battery.

[Fig. 6] Fig. 6 is a diagram showing an overview of a battery cover, a shape change, and a procedure for attaching to a cylindrical battery according to the fourth embodiment.

[Fig. 7] Fig. 7 is a diagram showing an overview of a battery cover, a shape change, and a procedure for attaching to a cylindrical battery according to a fifth embodiment.

[Fig. 8] Fig. 8 is a diagram showing a change in the shape of the battery cover and a mounting procedure for the cylindrical battery in the sixth embodiment.

[Fig. 9] Fig. 9 is a diagram showing an overview of the battery cover of the seventh embodiment and a procedure for attaching it to the cylindrical battery.

FIG. 10 is a diagram showing a state in which a battery cover attached to a cylindrical battery is swollen by absorbing leaked liquid.

FIG. 11 is a diagram showing an overview of a general battery case.

[FIG. 12] FIG. 12 is a diagram showing a state in which leaked liquid from one cylindrical battery is absorbed by a plurality of adjacent battery covers as a whole.

[FIG. 13] FIG. 13 is a diagram showing a state in which swelling and expansion occur, a gap is opened, a battery cover is contacted, and leaked liquid is transferred and absorbed.

[FIG. 14] FIG. 14 is a view showing an overview of a plurality of battery covers to which an impermeable coating is applied except for a part of the outer surface.

FIG. 15 is a diagram showing a state in which leaked liquid from the cylindrical battery is absorbed by the entire plurality of battery covers shown in FIG.

FIG. 16 is a view for explaining a battery cover provided with an auxiliary absorber.

FIG. 17 is a diagram showing an example of a shape other than the shape of each battery cover in the first to seventh embodiments. It is.

[FIG. 18] FIG. 18 is a diagram showing an overview of the battery power bar 8 that uses the protrusions of the positive electrode and negative electrode of a rectangular parallelepiped battery for locking, and the procedure for attaching the rectangular battery to a rectangular battery. is there.

FIG. 19 is a view showing the battery cover before and after cutting.

Explanation of symbols

[0035] 1, 2, 3, 4, 5, 6, 7, 8 Battery cover

40 cylindrical battery

50, 60 battery case

51 Auxiliary absorber

101 Internal space for battery insertion

201, 301a, 301b, 501a, 501b, 601, 701

202, 302, 502, 602a, 602b, 702 Through hole for negative electrode energization

401a, 401b, 402 Through hole for energizing positive or negative electrode

403a, 403b, 503a, 503b, 603a, 603b, 703 Auxiliary cover

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, the best mode for carrying out the present invention will be described with reference to the accompanying drawings.

[0037] (Embodiment 1)

Hereinafter, the battery cover and leakage liquid absorbing method of Embodiment 1 of the present invention will be described with reference to FIG. 1 and FIG.

FIG. 1 is a diagram showing an overview of the battery cover 1 according to Embodiment 1 of the present invention. The battery cover 1 shown in FIG. 1 has a cylindrical shape having an inner space, that is, a tube shape, and the diameter of the inner space 101 in the cross section perpendicular to the longitudinal direction of the battery cover 1 is the length of the corresponding cylindrical battery. Although smaller than the outer diameter of the cross section perpendicular to the axial direction, since the battery cover 1 has elasticity, it is possible to insert the cylindrical battery into the inner space 101 of the battery cover 1. When the cylindrical battery is inserted into the inner space 101 of the battery cover 1, the battery cover 1 is expanded and the inner space 101 becomes larger. And the cylindrical battery with the battery cover 1 closely attached After the battery pack is installed in the battery loading part of the battery-powered device, the cylindrical battery with the battery cover 1 is attached.If leakage occurs, the percentage of the area where the battery cover 1 and the battery are in close contact with each other. Since it is larger than when the cover is just placed in the vicinity of the battery, the possibility that the leaked liquid will flow out without being absorbed by the battery cover is extremely low.

FIG. 2 is a diagram showing a method for attaching the battery cover 1 to the cylindrical battery. FIG. 2 (a) is a diagram showing the direction of enlarging the inner space 101 of the battery cover 1 with arrows in order to insert the cylindrical battery 40. FIG. FIG. 2 (b) is a diagram showing the insertion direction of the cylindrical battery 40 into the enlarged inner space 101 by arrows. FIG. 2 (c) shows a state where the cylindrical battery 40 is being inserted into the battery cover 1, and FIG. 2 (d) shows a state where the battery cover 1 has been attached to the cylindrical battery 40. .

[0040] With such a simple procedure, the battery cover 1 is attached to the cylindrical battery 40, and can be in close contact with the cylindrical battery 40 in a wide range. It is also possible to insert the cylindrical battery 40 on the opposite side of the battery cover 1, that is, on the right side of the battery power bar 1 in FIG. Here, the cylindrical battery 40 may be, for example, a single alkaline dry battery, another manganese dry battery, a nickel metal hydride battery, a lithium battery, or the like, or AA, AA, AAA, AAA, etc. This battery can be used.

[0041] Further, if the battery cover is further thinned with a compression cover, or if the thickness is reduced by adding a gelling agent, the outer diameter of the cylindrical battery attached with the battery cover does not increase so much. Therefore, it can be easily loaded into the battery loading part of the device using the cylindrical battery. In addition, if compression processing is performed, the battery force bar can swell and expand the gap between the battery and the battery loading portion by utilizing the restoring force while absorbing the leaked liquid, and a gelling agent can be added. In this case, the gelling agent swells and expands the gap while absorbing the leaked liquid, so that the absorption capacity is increased compared to the case of V, which is a little by adding compression processing or gelling agent.

[0042] Further, since the battery cover 1 has a deformability derived from the stretchability, it can be attached to a rectangular battery. In other words, if it has sufficient deformability, it can be attached to a battery with a different shape regardless of the shape of the inner space of the battery cover. Even a quadrangular prism shape or other shapes can be attached to a cylindrical battery or other shape battery. The same applies to the battery cover 2 described later. [0043] Of course, the external shape of the battery and the internal shape of the battery cover are similar, and the battery and the battery should have an internal shape that is smaller than the external shape of the battery so that the battery can be inserted. Since the cover is easy to adhere and difficult to form a gap, the effect of preventing leakage of the leaked liquid into the wiring path is enhanced. In addition, if there is a certain degree of expansion and contraction performance, even if it is not a completely similar relationship, a gap can be created if it is a similar relationship, but a close contact is possible, and battery covers for various types of batteries of various shapes The same applies to.

[0044] In addition, all the battery covers in the present invention can be attached to the battery, have stretchability and leakage liquid absorption capability, and have a structure that can be in close contact with the battery over a long period of time.

[0045] Note that the battery cover 1 is a gelled product such as a synthetic fiber such as polypropylene fiber, polyethylene fiber or vinylon, natural fiber such as cotton or pulp fiber, or dry agar which hardly causes chemical reaction with the leakage from the battery. It is made by weaving, adhering, compressing, adding, and giving stretchability and liquid absorption. Hereinafter, each battery cover in Embodiments 2 to 7 is the same, and it is desirable that the leaked liquid absorbing member to be attached to the battery is not limited to the cylindrical battery! ,.

[Embodiment 2]

Next, the battery cover 2 according to Embodiment 2 of the present invention will be described with reference to FIGS.

FIG. 3 is a diagram showing an overview of the battery cover 2 of the second embodiment. The battery cover 1 in FIG. 1 has a structure in which bent portions are added to both ends of the battery cover 1 in order to add a locking effect to the battery.

[0048] Fig. 3 (a) is a perspective view of the battery cover 2, and Fig. 3 (b) is a view of the battery cover 2 when the directional force in which the through-hole 202 exists is seen. c) shows the battery cover 2 when the directional force in which the through-hole 201 exists is also seen. FIG. 3 (d) is a front view of the battery cover 2.

[0049] The battery cover 2 shown in FIGS. 3 (a) to 3 (d) has a cylindrical shape that matches the shape of the cylindrical battery, and is in contact with the end face where the positive electrode and the negative electrode of the cylindrical battery are present inside both ends. Has a surface. In addition, when no external force is applied, the inner space of the cylindrical shape is contracted by the restoring force when the battery cover that is smaller than the cylindrical battery volume is extended and attached to the cylindrical battery, and comes into close contact with the cylindrical battery. ing. [0050] Further, in the battery cover 2, a surface that contacts the both end surfaces of the cylindrical battery exists as a bent portion on a surface that forms a curved surface, and serves to lock the battery cover 2 to the cylindrical battery. Due to this locking, the battery cover 2 is not easily displaced after being attached to the cylindrical battery 40 compared to the battery cover 1. When the vibration of the battery loading part is intense or the battery loading direction to the battery loading part is the direction of the long axis of the battery. It is effective in the same case.

[0051] Further, the battery cover 2 includes a through hole 201 for strongly preventing the battery from being displaced from the cylindrical battery after the cylindrical battery is mounted, and also includes a through hole 202 for energizing the negative electrode.

[0052] The through hole 201 through which the positive electrode convex portion passes is an example of the first through hole in the battery cover of the present invention, and the positive electrode is formed by passing through the cylindrical positive electrode convex portion of the cylindrical battery 40. It is latched by the convex part. Thus, the battery cover 2 can be accurately locked by the cylindrical battery 40. Furthermore, the size of the first through-hole is such a force that the positive electrode convex portion can penetrate by force, and the positive electrode convex portion can be penetrated by extending the circumference of the hole and increasing the hole diameter. With this size, the first through hole can be more reliably locked at the convex portion of the positive electrode.

[0053] Further, the through hole 202 for energizing the negative electrode is an example of a second through hole in the battery cover of the present invention.

Note that the same applies to each battery cover in Embodiments 3 to 7 and the like described later.

That is, each of the dedicated through-holes that pass through and lock the electrode protrusions in each battery cover is an example of the first through-hole in the battery cover of the present invention, and has a function of locking the electrodes. Each of the through holes for electrode energization that is not present is an example of a second through hole in the battery cover of the present invention.

[0055] The through-hole 202 of the battery cover 2 is sized so that the cylindrical battery can be inserted into the battery cover due to the elasticity of the material, and is stretchable after the cylindrical battery is inserted into the battery cover. The original size or the cylindrical battery is not pushed out by the contraction force as the whole battery cover due to the contraction force derived from

FIG. 4 is a diagram showing a method of attaching the battery cover 2 to the cylindrical battery. FIG. 4 (a) is a diagram showing the direction in which the through hole 202 of the battery cover 2 is enlarged in order to insert the cylindrical battery 40 with an arrow. Fig. 4 (b) shows the insertion direction of the cylindrical battery 40 into the enlarged through-hole 202 with an arrow. FIG. FIG. 4 (c) shows a state where the cylindrical battery 40 is being inserted into the battery cover 2, and FIG. 4 (d) shows a state where the battery cover 2 has been attached to the cylindrical battery 40. .

The battery cover 2 is attached to the cylindrical battery 40 by such a simple procedure, and can be in close contact with the cylindrical battery 40 in a wide range.

[Embodiment 3]

Next, battery cover 3 according to Embodiment 3 of the present invention will be described with reference to FIG.

[0059] FIG. 5 is a diagram showing an overview of the battery cover 3 of the third embodiment and a procedure for attaching it to the cylindrical battery.

FIG. 5 (a) is a diagram showing an overview of the battery cover 3 and the direction in which the cylindrical battery 40 is inserted. The battery cover 3 shown in Fig. 5 (a) has a bag shape that allows insertion of a cylindrical battery, and when the cylindrical battery is inserted, the negative electrode is energized near the center of the part that contacts the end surface where the negative electrode of the cylindrical battery exists. Through-holes 302, and through-holes 30 la and through-holes 301b, which pass through the convex portions of the cylindrical positive electrode of the cylindrical battery, are each provided at two ends on the cylindrical battery insertion port side. .

FIG. 5 (b) is a diagram showing a procedure after the cylindrical battery is inserted into the battery cover 3. FIG. 5 (c) is a diagram showing a state in which the through hole 301a and the through hole 301b are locked to the convex portion of the positive electrode which is a circular injection shape of the cylindrical battery.

[0062] As shown in FIG. 5 (b) and FIG. 5 (c), the through hole 301a and the through hole 301b are bent by pulling the end portion where they exist toward the positive electrode side of the cylindrical battery. It exists in the position where the positive electrode of the cylindrical battery penetrates.

[0063] Further, there may be two or more end portions having through holes for locking to the convex portions of the positive electrode. In other words, if the number of end portions is reduced and the width is increased, the end portion will be distorted when locked to the convex portion of the positive electrode, a gap will be formed, and a device using a cylindrical battery equipped with a battery cover Since it becomes difficult to load the battery into the battery cover, the number of end portions is increased to 3 or more, and the horizontal distance between the end portions having the through holes is narrowed, so that the leaked liquid can hardly be leaked from the gaps in the battery cover itself. Further, each end portion may have a structure in which at least a part thereof overlaps with each other at each base portion. Overlap at the base has the effect of reducing the risk of leakage.

[0064] As described above, it is difficult to cause a chemical reaction with the liquid leaking from the battery !, synthetic fibers such as polypropylene fiber, polyethylene fiber and vinylon, and natural fibers such as cotton and pulp fiber. Desirably, the above-mentioned battery cover 1, battery cover 2 and battery power bar 3 are made of a gelled material such as fiber or dry agar.

[0065] However, the properties of the leakage from the battery are roughly classified into two types, a non-aqueous electrolyte solution and an aqueous electrolyte solution. As a battery using the non-aqueous electrolyte solution, a lithium battery, a lithium ion battery, and the like are used. Examples of batteries using aqueous electrolyte include manganese dry batteries, alkaline dry batteries, nickel primary batteries, nickel metal hydride batteries, nickel cadmium batteries, and lead storage batteries.

[0066] Polypropylene fibers, polyethylene fibers, and the like are suitable for absorbing non-aqueous electrolytes that have oil absorbency but poor water absorption, but are not suitable for absorption of water-based electrolytes. On the other hand, vinylon has a problem that it is suitable for absorption of aqueous electrolyte solution that has water absorption but poor oil absorption property, but is suitable for absorption of non-aqueous electrolyte solution. .

[0067] Of course, once the type of battery to be loaded is determined, the properties of the leaked liquid are also determined. Therefore, by attaching a battery cover made of a single material suitable for absorbing the leaked liquid, the electrolyte leaks. When outflow occurs, it becomes possible to efficiently absorb the leaked liquid. However, in reality, it is difficult to distinguish whether the battery electrolyte is non-aqueous or water-based and install a battery cover that has an absorption effect. The possibility of wearing the battery cover by mistake cannot be denied.

[0068] Here, when a battery cover is made of a single material having both hydrophilicity and lipophilicity, it is possible to absorb both a non-aqueous electrolyte solution and an aqueous electrolyte solution. Therefore, it is difficult to have almost the same hydrophilicity and lipophilicity with one kind of material alone. You may produce a battery cover using both the fiber which has lipophilicity.

[0069] For example, a battery cover may be produced by knitting a blended yarn obtained by mixing two or more types of fibers and spinning them so as to have elasticity, or a single type of fibers may be used for spinning. The battery cover may be made by knitting a blended yarn that is made and then twisted with other types of yarns to give stretchability. Further, the battery cover may be produced by knitting a plurality of types of yarns so as to give stretchability. [0070] In other words, the use of both a water-absorbing fiber and an oil-absorbing fiber at the same time as giving a stretchability by knitting allows a non-aqueous electrolytic solution to be used even if the leakage liquid is an aqueous electrolytic solution. Even a liquid can be absorbed.

[0071] In order to make the battery cover stretchable, in addition to knitting and knitting the yarn, the material itself may have a certain degree of stretchability, or by twisting the yarn It does not matter if it has elasticity or is enhanced. This is a technology that is often incorporated into clothing. Of course, instead of knitting the yarn, you can fabricate a battery cover that is stretchable, water-absorbing and oil-absorbing with a cloth or sheet made by bonding or compressing multiple types of fibers. .

[0072] In addition, the battery cover is made of an elastic material, and the inside of the battery cover is made of oil-absorbing polypropylene fiber or polyethylene fiber and water-absorbing dry agar or other gelling material, cotton, pulp or vinylon. Etc. may be attached. For example, a material having stretchability may be made into a mesh structure, and a liquid absorbing material may be inserted between layers or mesh fibers. In addition, add an opaque coating, which will be described later, to the outer surface.

[0073] Even if a material does not originally have stretchability, it is possible to provide stretchability by using a mesh structure, and a liquid-absorbing material is inserted between layers or mesh-like fibers. Is also possible.

[0074] Of course, if the battery electrolyte used is water-based, only the water-absorbing material is used as the liquid absorbing material inserted between the outer member layers or between the mesh-like fibers, so that the battery electrolyte used is non-aqueous. If it is aqueous, only the oil-absorbing material may be used as the liquid-absorbing material inserted between the layers or the net-like fibers.

[0075] Further, the liquid absorptivity required for the material such as the battery cover 1 does not have to be high, and it is sufficient if it has a property capable of retaining the leaked liquid even in a small amount. In other words, if the battery leaks, if the amount of liquid leaking out from the battery cover can be reduced, damage to the battery-powered equipment can be reduced.

[0076] For this reason, the raw material of the material itself does not have liquid absorbency, but the battery cover may be made of a material that has obtained liquid absorbency by woven or porous.

[0077] In addition, the material of the battery cover 1 or the like does not have to have a resistance enough to completely resist the liquid leaking from the battery, for example, an alkaline dry battery power leaking potassium hydroxide solution. Yes. In other words, it is possible to reduce the damage to battery-powered equipment even if the leaked liquid makes it impossible to reuse it.

[0078] It is easy and simple to give stretchability by knitting yarn, but it is also possible to give stretchability to the yarn itself. For example, a battery cover may be made using polyurethane fibers and other fibers that are stronger and less susceptible to aging than highly elastic rubber!

[0079] In other words, a battery cover may be made using a covered yarn wound with polyurethane or other fibers such as polypropylene or vinylon, and polyurethane is inserted into the core during the spinning process of cotton or the like. Battery covers can be made using the core-spun thread.

[0080] Polyurethane materials are gradually decomposed and deteriorated due to the effects of hydrolysis, nitrogen oxides in the air, ultraviolet rays, etc. The deterioration begins after the material is manufactured, and in about 3 to 5 years, partial tearing occurs. However, it is considered that the covered yarn and the core span yarn still have some stretch performance!

[0081] Further, by coating the outer surface of the battery power bar with a liquid impervious film that does not allow the battery power leaking liquid to pass through, so that the battery power leaking liquid does not leak directly through the battery cover. The performance of the battery cover can be improved. Such a coating is hereinafter referred to as an “impermeable coating”.

[0082] Possible materials for the impermeable coating include high-density polyethylene films and rubbers such as butyl rubber having high alkali resistance.

[0083] In particular, when a high-density polyethylene film with a polyurethane cover on the inside is used as an impervious coating, the impervious coating itself is stretchable, and the elasticity of the polyurethane decreases due to the leaked liquid. More leaking liquid can be retained by gradually decreasing the degree of adhesion of the cover to the cylindrical battery.

[0084] Further, like the battery cover 2, the battery cover power of the cylindrical battery is exposed, and the percentage of the battery cover is small. For the battery cover, the outer surface of the battery cover is coated as described above. In this case, the battery cover is more difficult to discharge the leaked liquid out of the battery cover. If the processing of the liquid-impermeable material is omitted only in the vicinity of the through-hole 202 where higher stretchability is required in order to insert the cylindrical battery in the battery cover 1, the production is inexpensive and easy. Conceivable. [0085] Here, the ratio of the battery cover 3 exposed from the battery cover of the cylindrical battery is between the battery cover 1 and the battery cover 2, and when the outer surface is coated with an impervious coating, the cylindrical type The ability to keep leaked liquid from the battery 40 in the battery cover is also expected to be inferior between the battery cover 1 and the battery cover 1, and the ability to keep leaked liquid in the battery cover is inferior to the battery cover 2. Since it is not necessary for the cylindrical battery 40 to pass through the through hole 302, it is easier to manufacture than the battery cover 2, and it is considered that manufacturing value exists.

[0086] Also, for example, in the case where the battery cover 3 has a poor pulling force at the cylindrical convex portion of the cylindrical battery, it is difficult to lock the cylindrical battery. It can also be pasted.

[0087] Also, for example, when the battery cover 2 has an impermeable coating on the outer surface, the entire peripheries of the through hole 201 and the through hole 202 are made sticky in the same manner as described above so that the through holes are provided. The inner surface of the battery and the periphery of the positive electrode and the negative electrode of the cylindrical battery can be adhered, and the performance of the battery cover is further improved. In other words, if the leakage liquid from the cylindrical battery is a liquid amount within the absorption capacity of the battery cover 2, the leakage liquid leakage from the through holes can be prevented. Even when only one of the through-holes is provided with the above-mentioned adhesiveness, it is possible to prevent leakage of the leaked liquid from the through-hole.

[0088] Of course, even when the outer surfaces of the battery cover 2 and the battery cover 3 are not imperviously coated, if the leakage liquid is small, the battery cover absorbs all of the leakage liquid to load the battery. Damage to the equipment can be prevented or minimized.

[0089] For example, in manganese dry batteries using salty ammonium, the amount of leaked liquid is large. Recently, the number of manganese dry batteries using salty zinc has increased, and salty zinc has been used. Since the Mungan battery takes in water as it is discharged, the amount of leaked liquid is reduced, so it is considered possible to absorb all of the leaked liquid.

[0090] (Embodiment 4)

Next, battery cover 4 according to Embodiment 4 of the present invention will be described with reference to FIG.

FIG. 6 (a) is a diagram showing an overview of the battery cover 4 of the fourth embodiment.

[0092] As shown in Fig. 6 (a), the battery cover 4 is composed of two semi-cylindrical portions, and each of the two semi-cylindrical portions has a semi-cylindrical shape in which a part of the cylinder is cut in the axial direction. . Also two half cylinders The parts are shared by the two semi-cylindrical parts and are joined by a shared surface that is in contact with the end surface where the positive electrode or negative electrode of the cylindrical battery is present, and are independent from each other at positions facing the shared surface. It has an independent surface, and has a structure that can be attached to cover the cylindrical battery so as to form one cylindrical shape.

In addition, a through hole 401a is provided on one independent surface, and a through hole 401b is provided on the other independent surface. Both the through hole 401a and the through hole 401b are through holes for energizing the positive electrode or the negative electrode of the cylindrical battery. Further, an auxiliary covering portion 403a and an auxiliary covering portion 403b for covering the cylindrical battery are provided above and below each of the two semi-cylindrical portions. Specifically, the auxiliary covering portion 403a and the auxiliary covering portion 403b can fill a gap between the two semi-cylindrical portions and absorb the leaked liquid.

[0094] In addition, each surface where the through hole 401a and the through hole 401b are present has an edge with a bent portion for engaging with a part of the cylindrical side surface of the cylindrical battery 40 on each circumference. And exist. The bent portion is locked to the circumferential side surface of the cylindrical battery 40, so that the independent surface can be locked to the positive electrode side or the negative electrode side of the cylindrical battery 40. It becomes possible to adhere to the cylindrical battery. Further, the edge forming the bent portion can make it difficult to leak the leaked liquid from the cylindrical battery 40 to the outside of the battery cover.

[0095] The circumferential side surface of the cylindrical battery is a curved surface existing between both end surfaces where the positive electrode and the negative electrode exist.

[0096] Furthermore, a through-hole 402 for energizing the negative electrode or the positive electrode of the cylindrical battery is provided on the shared surface, and the two semi-cylindrical portions are joined on the shared surface. This connecting part is a hinge between two semi-cylindrical parts, and makes the battery cover 4 detachable from the cylindrical battery.

6 (b), FIG. 6 (c) and FIG. 6 (d) are diagrams showing changes in the shape of the battery cover 4 of the fourth embodiment.

[0098] FIG. 6 (b) is a view showing the battery cover 4 in a fully opened state, and FIG. 6 (c) is a view showing the battery cover 4 in a state where the state force shown in FIG. 6 (b) is also slightly closed. FIG. FIG. 6 (d) is a diagram showing the battery cover 4 in a state of being further closed from the state shown in FIG. 6 (c).

[0099] FIGS. 6 (e), 6 (f) and 6 (g) show the battery cover 4 of the fourth embodiment applied to the cylindrical battery. It is a figure which shows a mounting | wearing procedure. Fig. 6 (e) shows the initial procedure for mounting. As shown in FIG. 6 (), first, the circumferential side surface on the positive electrode side of the cylindrical battery 40 is locked to the bent portion of the independent surface having the through hole 401b, and the semicylindrical portion on the side where the through hole 401b exists is fixed. Attach to the cylindrical battery 40.

[0100] FIG. 6 (f) is a diagram showing a procedure in the middle of mounting. As shown in FIG. 6 (f), the auxiliary covering portions 403 b located above and below the semi-cylindrical portion attached to the cylindrical battery 40 are covered and adhered to the cylindrical battery 40. Also, the other semi-cylindrical part is brought in the direction of the cylindrical battery 40.

[0101] FIG. 6 (g) is a diagram showing a final procedure of mounting. As shown in FIG. 6 (g), while pulling the independent surface having the through-hole 401a, the bent portion of the cylindrical battery 40 is formed on the independent surface having the through-hole 401b previously locked to the positive electrode side. Lock to the circumferential side of the positive electrode. Further, the cylindrical battery 40 is also covered with the upper force of the semi-cylindrical portion already attached to the upper and lower auxiliary covering portions 403a.

In this way, the battery cover 4 can be attached to the cylindrical battery 40. As shown in FIGS. 6 (a) to 6 (g), the battery cover 4 functions as a cover by combining two semi-cylindrical parts joined in a hinged manner. In addition, the auxiliary covering portion 403a and the auxiliary covering portion 403b exist so as to fill a gap at a portion where the two semi-cylindrical portions meet. The auxiliary covering portion 403 a and the auxiliary covering portion 403 b are portions that fill a gap as a cover and also help improve the amount of leakage liquid absorbed in the battery cover 4.

[0103] If there is no bent portion that is an edge existing around the two independent surfaces, it is difficult to mount the battery on the cylindrical battery. Is possible.

[Embodiment 5]

Next, battery cover 5 according to Embodiment 5 of the present invention will be described with reference to FIGS. 7 (a) to 7 (g).

FIG. 7 (a) is a diagram showing an overview of the battery cover 5 of the fifth embodiment.

[0106] As shown in Fig. 7 (a), the battery cover 5 includes two semi-cylindrical portions, and each of the two semi-cylindrical portions has a semi-cylindrical shape in which a part of the cylinder is cut in the axial direction. . In addition, the two semi-cylindrical parts are shared by the two semi-cylindrical parts and are joined by a shared surface that is in contact with the end surface where the negative electrode of the cylindrical battery is present, and are independent of each other at positions facing the shared surface. It is a surface to It has an independent surface and can be installed so as to cover a cylindrical battery so as to form one cylindrical shape.

[0107] Further, one independent surface is provided with a through hole 501a, and the other independent surface is provided with a through hole 501b. Both the through-hole 501a and the through-hole 501b are through-holes that allow the protruding portion of the positive electrode, which is a cylindrical convex portion of the cylindrical battery, to pass therethrough. Further, an auxiliary covering portion 503a and an auxiliary covering portion 503b for covering the cylindrical battery are provided above and below each of the two semi-cylindrical portions. Specifically, the auxiliary covering portion 503a and the auxiliary covering portion 503b can fill a gap between the two semi-cylindrical portions and absorb the leaked liquid.

In addition, each surface where the through hole 501a and the through hole 501b are present has a bent portion around each of the surfaces, like the battery cover 4. This bent portion can make it difficult for the leaked liquid from the cylindrical battery 40 to leak outside the battery cover. Further, since the bent portion is locked to the circumferential side surface of the cylindrical battery 40, it also has a role of reliably locking the independent surface to the positive electrode side of the cylindrical battery 40.

[0109] Further, a through-hole 502 for energizing the negative electrode is provided on the common surface, and the two semicylindrical parts are joined on the common surface. This joint becomes the hinge of two semi-cylindrical parts, and the battery cover 5 can be attached to and detached from the cylindrical battery!

FIGS. 7B to 7D are diagrams showing changes in the shape of the battery cover 5 of the fifth embodiment.

FIG. 7 (b) is a diagram showing the battery cover 5 in a fully opened state, and FIG. 7 (c) is a diagram showing the battery cover 5 in a state where the state force shown in FIG. 7 (b) is also slightly closed. FIG. FIG. 7 (d) is a view showing the battery cover 5 in a state in which the battery cover 5 is further closed from the state shown in FIG. 7 (c).

[0112] FIGS. 7 (e) to 7 (g) are diagrams showing a procedure for attaching the battery cover 5 of the fifth embodiment to the cylindrical battery. Fig. 7 (e) shows the initial procedure for mounting. As shown in FIG. 7 (e), first, the positive electrode of the cylindrical battery 40 is locked to the through hole 501b, and the semi-cylindrical portion on the side where the through hole 501b exists is attached to the cylindrical battery 40.

[0113] FIG. 7 (f) is a diagram showing a procedure in the middle of mounting. As shown in FIG. 7 (f), the auxiliary covering portions 503 b located above and below the semi-cylindrical portion attached to the cylindrical battery 40 are covered and adhered to the cylindrical battery 40. Also, the other semi-cylindrical part is brought in the direction of the cylindrical battery 40.

[0114] FIG. 7 (g) is a diagram showing a final procedure of mounting. As shown in Fig. 7 (g), the through hole 501a Is locked to the positive electrode of the cylindrical battery 40, and the bent portion is locked to the circumferential side surface of the cylindrical battery 40 on the positive electrode side. Further, the cylindrical battery 40 is also covered with the upper force of the semi-cylindrical portion already attached with the auxiliary covering portions 503a located above and below.

In this way, the battery cover 5 can be attached to the cylindrical battery 40. The battery cover 5 functions as a cover by combining two semi-cylindrical parts joined in a hinged manner as shown in Figs. 7 (a) to 7 (g). In addition, the auxiliary covering portion 503a and the auxiliary covering portion 503b exist so as to fill a gap at a portion where the two semi-cylindrical portions meet. The auxiliary covering portion 503 a and the auxiliary covering portion 503 b are portions that fill a gap as a cover and are useful for improving the amount of leakage liquid absorbed in the battery cover 5.

[0116] It should be noted that there is no need to have an edge existing around the two independent surfaces, and the through-holes existing in each independent surface are locked to the positive electrode, so that the battery cover as the cover has a cylindrical battery force. There will be no deviation. Also, if there is an edge around at least one independent surface, it can be more securely locked to the cylindrical battery by attaching the independent surface to the cylindrical battery with the upper force of the other independent surface overlapped. And the effect of suppressing leakage of the leaked liquid out of the battery cover.

[0117] Battery cover 5 according to Embodiment 5 of the present invention uses the cylindrical convex portion of the positive electrode for locking, and thus is out of alignment with battery cover 4 according to Embodiment 4 of the present invention. Getting harder

[0118] (Embodiment 6)

In the battery cover 5 of Embodiment 5 described above, two semi-cylindrical portions are hingedly connected to a shared surface, and a through hole for energizing the negative electrode exists on the shared surface. However, a similar structure can be realized even if there is a through hole that allows the positive electrode to pass through the common surface, and there is a through hole for energizing the negative electrode on each independent surface that faces the common surface. is there.

[0119] Figs. 8 (a) to 8 (c) are diagrams showing changes in the shape of the battery cover 6 of the sixth embodiment.

FIG. 8 (a) is a diagram showing the battery cover 6 in a fully opened state. As shown in FIG. 8 (a), the battery cover 6 includes an auxiliary covering portion 603a and an auxiliary covering portion 603b above and below each of the two semi-cylindrical portions.

FIG. 8 (b) is a diagram showing the battery cover 6 in a state where the state force shown in FIG. 8 (a) is also slightly closed. . As shown in FIG. 8 (b), a through hole 602a and a through hole 602b for energizing the negative electrode are provided on the respective independent surfaces of the two semi-cylindrical parts. In addition, the common surface is provided with a through hole 601 that penetrates the cylindrical convex portion of the positive electrode of the cylindrical battery. That is, unlike the battery cover 5 of the fifth embodiment, it is hingedly connected on the common surface where the through hole 601 that penetrates the positive electrode side of the cylindrical battery exists.

[0122] In addition, there is an edge that forms a bent portion to be engaged with the negative electrode side of the cylindrical battery 40 on the periphery of each of the two independent surfaces.

[0123] As described above, even if the structure is the same as that of the battery cover 5, there is a through-hole that penetrates the cylindrical convex portion of the positive electrode of the cylindrical battery on the shared surface, and the negative electrode is formed on each of the two independent surfaces. There may be a through hole for energization. That is, each of the through hole that penetrates the cylindrical convex portion of the positive electrode and the through hole for energization of the negative electrode may be present exclusively on either the shared surface or the independent surface.

[0124] In any case, in the state where the two semi-cylindrical parts are attached to the cylindrical battery, the two independent surfaces are overlapped on the end surface of the cylindrical battery in which the positive electrode or the negative electrode exists. The through-holes that exist on each of the two independent surfaces form a single hole.

[0125] Fig. 8 (c) is a diagram showing the battery cover 6 in a state where it is further closed from the state shown in Fig. 8 (b).

[0126] FIGS. 8 (d) to 8 (f) are diagrams showing a procedure for attaching the battery cover 6 of the sixth embodiment to a cylindrical battery. Fig. 8 (d) is a diagram showing the initial procedure of mounting. First, as shown in FIG. 8 (d), the negative electrode side of the cylindrical battery 40 is covered with an independent surface having a through hole 602b for energization of the negative electrode, and the convex portion of the positive electrode is formed in the through hole 601. The semi-cylindrical part on one side is attached to the cylindrical battery 40 by passing through.

[0127] Fig. 8 (e) is a diagram showing a procedure in the middle of mounting. As shown in FIG. 8 (e), the auxiliary covering portions 603 b located above and below the semi-cylindrical portion attached to the cylindrical battery 40 are covered with the cylindrical battery 40. In addition, the semi-cylindrical portion on the side where the through hole 602a exists is brought in the direction of the cylindrical battery 40.

[0128] Fig. 8 (f) is a diagram showing a final procedure of mounting. As shown in FIG. 8 (f), the cylindrical battery 40 is covered with an independent surface having a through-hole 602a on the negative electrode side, and the upper force of the semi-cylindrical portion mounted with the upper and lower auxiliary covering portions 603a is also applied to the cylindrical battery. Cover 40. In this way, the battery cover 6 can be attached to the cylindrical battery 40. As shown in FIGS. 8 (a) to 8 (f), the battery cover 6 is attached to the cylindrical battery so that the two semi-cylindrical parts coupled in a hinge form a single cylindrical shape. The In addition, the auxiliary covering portion 603a and the auxiliary covering portion 603b exist so as to fill a gap at a portion where the two semi-cylindrical portions meet. The auxiliary covering portion 603a and the auxiliary covering portion 603b are portions useful for improving the amount of leakage liquid absorbed in the battery cover 6 as well as filling a gap as a cover.

In addition, the two “half-cylindrical parts” that are the main parts of the battery cover 4, the battery cover 5, and the battery cover 6 described above do not have to be strictly half the shape of a cylinder. For example, it may occupy 60% of one-sided cylinder and the other 40%. In addition, the total may not be 100%. That is, it suffices if there are two semi-cylindrical parts that cover the cylindrical battery so as to form one cylindrical shape. In addition, even if the portion excluding the through hole cannot be completely covered, the effect of reducing the damage to the device using the cylindrical battery due to the leaked liquid is not lost.

[0131] The auxiliary covering portions may not be provided above and below the two semi-cylindrical portions, respectively. Furthermore, only one semi-cylindrical part may be provided. Further, the shape does not have to be a rectangle as shown in FIG.

[0132] Further, even when the auxiliary covering portion is not provided, the protection effect by the semi-cylindrical portion is not lost, and damage to the cylindrical battery using device due to the leakage of the cylindrical battery should be reduced. Can do.

In other words, the number, shape, and position of the auxiliary covering portion should be determined according to the shape of the semi-cylindrical portion, the needs of the user, the manufacturing cost, and the like.

[Embodiment 7]

Each of the battery covers of the above-described Embodiments 4 to 6 constitutes a main shape as one battery cover by combining two semi-cylindrical portions. It also has an auxiliary covering to fill the joint between the two semi-cylindrical parts!

However, one semi-cylindrical portion, an independent surface that is a portion in contact with the end surface where the positive electrode or negative electrode of the cylindrical battery is present at both ends of the semi-cylindrical portion, and a bent portion for locking around the independent surface. A battery cover may be formed by the edge to be formed and the auxiliary covering parts above and below the semi-cylindrical part. A battery cover having a structure will be described as a seventh embodiment.

FIGS. 9A to 9C are views showing an overview of the battery cover 7 of the seventh embodiment.

[0137] Fig. 9 (a) is a front view of the battery cover 7, and Fig. 9 (b) is a view of the battery cover 7 with a slight rightward force. FIG. 9 (c) is a view of the battery cover 7 as seen from a direction closer to the right side surface.

[0138] As shown in Fig. 9 (b) and Fig. 9 (c), the battery cover 7 has an independent surface at each end, which is a part in contact with the end surface where the positive electrode or the negative electrode of the cylindrical battery is present as a main part. A semi-cylindrical portion is provided, and an edge that forms a bent portion for locking using a cylindrical shape of the cylindrical battery is provided on the periphery of the independent surface in contact with the end surface of the cylindrical battery. When the semi-cylindrical part is attached to the cylindrical battery, a part of the cylindrical battery is exposed. Furthermore, a through-hole 701 that allows the positive electrode of the cylindrical battery to pass through exists on one independent surface at one end, and a through-hole 702 for energizing the negative electrode exists on the other independent surface. Further, as shown in FIGS. 9A to 9C, auxiliary covering portions 703 exist above and below the semi-cylindrical portion. The two auxiliary covering portions 703 have a shape that covers the exposed portion of the cylindrical battery.

FIGS. 9 (d) to 9 (f) are diagrams showing a procedure for mounting the battery cover 7 of the seventh embodiment on the cylindrical battery. Fig. 9 (d) shows the initial procedure for mounting. As shown in FIG. 9 (d), first, the cylindrical convex portion of the positive electrode of the cylindrical battery 40 is engaged with the through-hole 701, and the edge forming the bent portion of the circumference of the independent surface is formed on the cylindrical battery 40. Lock to the circumferential side of

[0140] Fig. 9 (e) is a diagram showing a procedure in the middle of mounting. As shown in FIG. 9 (e), the semi-cylindrical portion is attached to the cylindrical battery 40 by covering the negative surface side of the cylindrical battery 40 with an independent surface where the through hole 702 exists. In addition, the upper and lower auxiliary covering portions 703 are placed on the cylindrical battery 40 so as to wrap the cylindrical battery 40.

[0141] FIG. 9 (f) is a diagram showing a state in which the battery cover 7 is completely attached to the cylindrical battery 40. FIG.

[0142] In this way, the battery cover 7 can be attached to the cylindrical battery 40. As shown in FIGS. 9 (a) to 9 (c), the battery cover 7 functions as a battery cover with a cylindrical portion whose curved surface is partially opened and upper and lower auxiliary covering portions 703 near the opening portion. . The auxiliary covering portion 703 is a portion that covers the exposed portion of the cylindrical battery 40 from the semi-cylindrical portion and is also useful for improving the absorption capacity of the leaked liquid in the battery cover 7. It should be noted that, similarly to battery cover 4, battery cover 5 and battery cover 6 of Embodiments 4, 5 and 6, the semi-cylindrical part which is the main part of battery cover 7 is not strictly half the cylinder. Good. In other words, the size of the curved open window may be any size as long as the cylindrical battery can be inserted. In addition, the cylindrical battery may not be completely covered with the semi-cylindrical portion and the auxiliary covering portion 703. Furthermore, as with the battery cover 4, the battery cover 5, and the battery cover 6, the battery cover 7 can also absorb leaked liquid without an auxiliary covering. That is, a battery insertion hole is present on the curved surface of the battery cover 2 of the second embodiment shown in FIG. 3, and the battery insertion need not depend on the through-hole 202, and a structure can be made.

[0144] Further, like each battery cover of Embodiments 4 to 7, a plurality of semi-cylindrical curved surfaces constituting a battery cover that does not reduce the outflow of leakage liquid to the outside by the auxiliary covering portion. It is also possible to suppress leakage of the leaked liquid to the outside of the cover by providing an overlap.

[0145] In addition, the effects of the device for imparting adhesiveness around the through-hole and the device for applying an impermeable coating on the outer surface of the cover described in the description of Embodiment 3 are the same as those of the battery covers 4 to 7 described above. Of course, it is also demonstrated. In other words, each device has the effect of reducing the amount of leaked liquid outside the cover and reducing the damage to battery-operated equipment.

[0146] Further, the battery cover may be subjected to a compression case so that the battery mounted with the battery cover of each of the above-described embodiments can be easily accommodated in the battery case of the device. Specifically, it is made thin by compressing the thickness of the battery cover in a dry state. As a result, when the liquid leaks from the cylindrical battery, the battery cover can swell and expand to absorb the leaked liquid.

[0147] In addition, in the battery cover of each of the above-described embodiments, a gelling agent that gels while swelling and expanding by absorbing an aqueous or non-aqueous leakage liquid is added to the battery cover. The cover can be made thin so that a cylindrical battery with a battery cover can be easily stored in the battery case of the device.

[0148] Also, in the case of a battery case that houses a plurality of cylindrical batteries, the battery cover attached to each of the plurality of cylindrical batteries comes into contact with each other, so that the leaked liquid that has flowed out from a certain battery cover case is removed. Other battery covers can absorb.

[0149] Next, a leakage liquid absorbing method using the battery cover of the present invention will be described. [0150] Fig. 10 is a view showing a state in which the battery cover that has been subjected to compression processing, gelling agent addition, and the like swells and expands by absorbing the leaked liquid from the cylindrical battery. For the explanation of FIG. 12 and FIG. 13 below, it is assumed that the battery cover 2 having an impermeable coating on the outer surface is attached.

[0151] As shown in FIG. 10, when the battery cover 2 swells and expands, it has a shape corresponding to the shape of the battery case housed therein. For example, the entire shape may be a cylindrical shape as shown in the lower left of the figure, or a square shape as shown in the lower right of the figure.

[0152] The battery cover may be processed in advance so as to have a shape corresponding to the shape of the battery case. For example, if the part in which the cylindrical battery is accommodated is a square shape, the battery cover is dried and formed into a shape that matches the square shape. Furthermore, it should be compressed and thinned. The battery cover is attached to the cylindrical battery, and is stored in the battery case so that the corners of the original square shape correspond to the corners in the battery case. By such processing, the battery cover can efficiently swell. That is, in the absorption of the leaked liquid, the space between the cylindrical battery and the battery case can be efficiently filled, and the absorption efficiency can be improved. In addition, in the case of adding a gelling agent, it is possible to expand and expand so as to fill a gap with the absorption of leaked liquid, which does not need to be molded especially assuming the shape after expansion of swelling.

[0153] Since the outer surface of the cover thus swollen is not imperviously coated, leaked liquid from the cylindrical battery oozes out. Let this battery cover be A. In such a case, if a battery cover (referred to as B) that has a room for absorbing liquid is in contact with even a small amount, at least a part of the leaked liquid that leaks out of A is absorbed by B. As a result, expansion of equipment damage due to the leaked liquid can be suppressed.

[0154] Fig. 11 is a diagram showing an overview of a general battery case. FIG. 11 (a) is a schematic view of the upper surface of the battery case 50, and FIG. 11 (b) is a view when the battery case 50 is viewed obliquely from above.

[0155] Assuming that 4 cylindrical batteries with battery cover 2 shown in Fig. 10 are stored in the battery case 50 shown in Fig. 11, one cylindrical battery is leaking. This will be explained using FIG. [0156] Fig. 12 is a diagram showing a state in which the leakage liquid of one cylindrical battery force is absorbed by a plurality of adjacent battery covers as a whole.

[0157] As shown in FIG. 12, four cylindrical batteries each having the battery cover 2 attached are stored in the battery case 50. In the figure, the dots on the battery cover 2 represent a state where the leaked liquid is absorbed. Also, the more dense the dots, the greater the amount of absorption.

Also, in FIGS. 12 (a) to 12 (e), FIG. 12 (a) is the first stage, FIG. 12 (b) is the second stage, FIG. 12 (c) is the third stage, and FIG. ) Is the fourth stage, and Fig. 12 (e) is the fifth stage.

[0159] In a state where none of the cylindrical battery forces leaks (first stage), the right force also leaks from the second cylindrical battery, and the battery cover 2 swells (second stage). Next, the leaked liquid leaking out of the surface force of the battery cover 2 begins to be absorbed by the left and right battery covers 2 (third stage).

[0160] Next, the leaked liquid begins to ooze out from the surface of the second battery cover 2 from the left, and the leftmost battery cover 2 begins to absorb the leaked liquid (step 4). In this way, the leaked liquid leaked from the second cylindrical battery from the right is absorbed by the leftmost battery cover 2 only by the two adjacent battery covers 2 (step 5).

[0161] Thus, the battery cover that can absorb the leaked liquid from the outer surface can also absorb the leaked liquid from other cylindrical battery powers in addition to the cylindrical battery contained in itself. As a result, the leaked liquid that cannot be retained by one battery cover can be absorbed by a plurality of battery covers. That is, damage due to liquid leakage from the cylindrical battery in battery-operated equipment can be reduced.

[0162] Note that FIG. 12 illustrates the liquid leakage in a state where adjacent battery covers are in contact, but one battery cover flows out from the other battery cover even when the battery cover is not in contact. Can absorb leaking liquid.

[0163] That is, it is preferable that the leaked liquid that exudes from the other battery cover is absorbed more efficiently when it is in contact. However, even if it is not in contact, if the external force can be absorbed, other battery cover power can be absorbed, and the leaked liquid can be absorbed, reducing the damage to battery-operated equipment.

[0164] Even if the battery covers are not in contact with each other when the battery case is loaded, the leaked liquid is absorbed. As a result, it swells and expands and comes into contact with the adjacent battery cover, so it can be attached to a leaky battery! /, Even if the battery cover absorbs leaked liquid.

[0165] FIG. 13 is a diagram showing a state in which one cylindrical battery force leaking liquid is absorbed by a plurality of battery covers with a gap between them when the battery case is loaded.

[0166] As shown in FIG. 13, the basic structure is the same as the battery case 50. Four cylindrical batteries with the battery cover 2 are housed in the battery case 60 with a wide space between the batteries to be loaded. The battery covers 2 are not in contact with each other. In the figure, the dots on the battery cover 2 represent the state where the leaked liquid is absorbed. It also expresses that as the dots become denser, the amount of absorption increases.

In FIGS. 13 (a) to 13 (e), FIG. 13 (a) is the first stage, FIG. 13 (b) is the second stage, FIG. 13 (c) is the third stage, and FIG. ) Is the fourth stage, and Fig. 13 (e) is the fifth stage.

[0168] In the state where none of the cylindrical battery forces leaks (step 1), the right force also leaks from the second cylindrical battery, and as a result of the battery cover 2 swelling, the adjacent battery cover 2 (2nd stage). Next, the leaked liquid leaked out from the surface force of the battery cover 2 begins to be absorbed by the left and right battery covers 2 (third stage).

[0169] Next, the second battery cover 2 from the left also swells and expands. As a result, the left battery cover 2 comes into contact with the left battery cover 2, and the leftmost battery cover 2 begins to absorb leaked liquid through the surface (step 4). . In this way, the leaked liquid that has leaked the second cylindrical battery force from the right is also absorbed by the leftmost battery cover 2 only by the two adjacent battery covers 2 (step 5).

[0170] As described above, the battery cover that can swell and expand with the absorption of leaking liquid and contacts the battery power bar in the vicinity of the gap so that the external force can also absorb the leaking liquid. Other cylindrical battery powers can be absorbed, not just by the included cylindrical battery. As a result, it is possible to absorb the leaked liquid that could not be secured with one battery cover with a plurality of battery covers. In other words, it is possible to reduce the damage caused by leakage of the cylindrical battery power in battery-powered equipment.

[0171] In addition, in many cases, a battery in which leaked liquid is generated may have a voltage remaining in a battery in which no adjacent leaked liquid is generated. In this case, if the battery cover attached to the battery with the remaining voltage absorbs a large amount of the leaked liquid, As a result, a short circuit occurs in the negative electrode and power is consumed. As a result, the voltage applied to the battery in which the leaked liquid is reduced, gas generation is reduced, and the leak speed of the leaked liquid is reduced is an advantage. A short circuit between the positive electrode and the negative electrode can cause heat generation and ignition. There is.

[0172] In order to suppress the exothermic ignition, the flame retardant aluminum hydroxide is added to the cover, or one of the cover materials is a highly flame-retardant polyparaffin-lenbenzoxazole fiber It is also possible to use. Polypara-Lenbenzoxazole fiber has high flame retardancy and high elastic modulus, but low hygroscopicity, so it can be used together with other absorbent fibers such as cotton and vinylon, and absorbent fibers such as polypropylene fiber. By using it, it becomes possible to produce a battery cover having flame retardancy, elasticity and liquid absorption performance.

[0173] Further, in order to prevent leakage liquid from penetrating into the adjacent battery cover and short-circuiting the positive and negative electrodes of the adjacent battery, the battery cover is in contact with at least one of the positive and negative electrodes of the battery. It may be non-conductive. For example, the portion in contact with at least one of the positive electrode or negative electrode of the battery may be coated with polyethylene or polypropylene, or the portion in contact with at least one of the positive electrode or negative electrode of the battery may be coated with polyethylene or polypropylene. It may be formed in the shape of a plate or plate.

[0174] In addition, as shown in Fig. 12 and Fig. 13, leakage occurred even when using battery covers 1, 3, 4, 5, 6, 7 etc. that are not coated with an impervious coating other than battery cover 2. It is possible to absorb leaked liquid with a cover attached to a battery that is not present.

[0175] Further, in Fig. 12 and Fig. 13, the case where a plurality of battery power bars 2 whose outer surfaces are not coated with an impermeable coating has been described. However, the outer surface of the battery cover, except for the part outside the circumferential side of the cylindrical battery, is coated with an impervious coating to prevent leakage of the leaked liquid outside the cover. In addition, it is possible to have an effect of absorbing leaked liquid flowing out from other battery covers.

[0176] FIG. 14 is a diagram showing an overview of battery covers A to D on which an impermeable coating is applied except for a part of the outer surface.

[0177] Battery covers A to D shown in Fig. 14 are the above-described battery covers 2 in which the outer surface of the cylindrical battery, except for a part on the outer side of the circumferential side, is coated with an impermeable coating. Also Assume that the battery case 50 shown in FIGS. 11 (a) and 11 (b) contains the cylindrical batteries with the four battery covers A to D mounted and arranged in the order of A to D.

[0178] As shown in FIG. 14, the battery covers A and D are not provided with a partial force-impermeable coating on the left side. Battery covers C and B are partially imperviously coated on both sides. When this impervious coating is applied, the part is called “uncoated part”.

That is, the battery covers C and B are the same, and the battery covers A and D are the same. The cylindrical battery with the battery covers B and D is loaded in the battery case 50 with the positive electrode side facing away from the positive electrode of the cylindrical battery with the battery covers A and C.

[0180] Further, as shown in FIG. 14, battery covers A and D are preferable in that a force leakage liquid in which an uncoded portion exists only on one side is kept inside as a cover. However, as with battery covers C and B, there may be uncoded parts on both the left and right sides, and the effect of absorbing leakage from the uncoded part of the adjacent battery cover that leaks from the uncoded parts of the adjacent battery cover is lost. That's not true.

[0181] In addition, even a battery cover that has been subjected to an impermeable coating except for a part of the above can absorb the leaked liquid while expanding and expanding. At this time, as described in FIG. 10, the outer shape changes according to the shape of the battery case. Alternatively, it may be processed so that the outer shape changes according to the shape of the battery case.

[0182] FIG. 15 is a diagram showing a state in which the battery cover A to D shown in FIG. In FIG. 15, the dots on the battery cover 2 represent the state in which the leaked liquid is absorbed as in FIGS. It also expresses that the denser the dots, the greater the amount of absorption!

In addition, in FIGS. 15 (a) to 15 (e), FIG. 15 (a) is the first stage, FIG. 15 (b) is the second stage, FIG. 15 (c) is the third stage, and FIG. ) Is the 4th stage, and Fig. 15 (e) is the 5th stage. The battery covers A to D are simply referred to as "A", "B", "C", and "D".

[0184] In the state where none of the cylindrical battery forces leaks (first stage), the right force also leaks from the second cylindrical battery, and B swells. Also, the uncoated partial force of B on the left and right is C Leakage begins to penetrate the uncoated parts of A and A (stage 2). Next, the leakage fluid that exudes B force in C and A begins to spread inside (step 3).

[0185] Next, the leaked liquid begins to permeate into the uncoated part of the uncoated partial force D on the left side of C, and the leaked liquid spreads inside D (step 4). In this way, the liquid leaking from the second cylindrical battery from the right is also absorbed by the leftmost D, which is only adjacent C and A (step 5).

[0186] In this way, by providing an uncoated portion in a portion that comes into contact with an adjacent battery cover, if there is a large amount of leaked liquid from the cylindrical battery, it will leak into the battery cover adjacent to the battery cover. The liquid is transmitted, and it is possible to prevent or reduce damage to the cylindrical battery equipment due to the leaked liquid.

[0187] In addition to the non-coated part, the impervious coating is applied so that the liquid does not pass through. It becomes possible to reduce the amount of outflow to In other words, A to D shown in FIG. 14 can prevent or reduce the damage to the equipment using the cylindrical battery due to the leaked liquid by these two effects.

[0188] In addition to the battery cover 2, battery covers 1, 3, 4, 5, 6, 7 and the like can be expected to have the same effect by forming an uncoated portion in a part of this impervious coating. .

[0189] Also, by loading the battery cover with the uncoated portion of the battery cover in which an uncoated portion is formed on a part of the impermeable coating facing each other, the battery is loaded immediately after being loaded into the battery load portion. Even if the covers are not in contact with each other, if the battery cover swells and expands by absorbing the leaked liquid and can contact the adjacent battery cover, leakage will occur as in the example shown in FIG. The battery cover attached to the battery can also help to absorb leakage.

[0190] Battery covers 1-7, etc., which are not impermeable coated, and battery covers 1-7, etc., which have an uncoated portion in part of the impermeable coating, may be used in combination. As shown in FIG. 13 and FIG. 15, the battery cover attached to the battery, which may leak, can transmit and absorb the leaked liquid. [0191] In addition, when a lid is present on the battery case, it is possible to cause the auxiliary absorber to absorb the leaked liquid that cannot be absorbed by the battery power bar A in Fig. 14 using the auxiliary absorber. FIG. 16 is a diagram for explaining a battery cover including an auxiliary absorber. In FIG. 16, the four battery covers attached to the cylindrical battery have the same force as the battery cover A with Al, A2, A3, and A4.

[0192] As shown in Fig. 16, the uncoated part of the battery cover A with the cylindrical battery attached is turned up, the auxiliary absorber 51 of sufficient thickness is placed on the battery cover A, and the battery case cover is closed. . By this procedure, the auxiliary absorber 51 is arranged so that the auxiliary absorber 51 contacts the uncoated portion of the battery cover A with an appropriate force.

Thus, when the amount of leaked liquid is large, the leaked liquid can be absorbed by the auxiliary absorber 51 through the uncoated portion. As the material for the auxiliary absorber 51, the materials listed as materials for absorbing the leakage of the battery cover may be used. The auxiliary absorber can also be used to absorb leaked liquid that cannot be completely absorbed by the battery cover 2 whose outer surface is not coated with impervious coating as shown in FIG.

[0194] As described above, using FIG. 10, FIG. 11, FIG. 12, FIG. 13, FIG. 14, FIG. 15 and FIG. Explained as a method of absorbing leaked liquid that is absorbed by the auxiliary absorber. However, it is not limited to rectangular batteries other than cylindrical batteries, lead-acid batteries used in cars, a wide variety of batteries used in personal computers and home appliances. It can be used as a leakage absorption method. It can also be used as a method for absorbing leaked liquids of various pipes, such as drain pipes, water supply pipes, drainage pipes, liquid supply pipes, heating pipes and cooling pipes for cooling liquids. It can also be used as a method for absorbing leakage at the site.

[0195] For example, at least a part of the outer surface has a leakage liquid absorbing ability, and the leakage liquid has a leakage absorbing ability that is compressed for thinning or added with a gelling agent to reduce the thickness. Install or install the absorber in a place where it can be a leak source, and face the part of the outer surface that has the ability to absorb leaking liquid and the part of the outer surface of the different leaking liquid absorbing member that has the ability to absorb leaking liquid. By installing or installing the leaking liquid absorbing members in different places with no space between them, the leaking liquid absorbing member of the leaking source absorbs the leaking liquid and swells and expands, so that different leaks occur. By contacting the effluent absorbing member, the spilled liquid absorbing member is installed or installed at a location where there is a gap between the spilled liquid absorbing member and the leaked liquid absorbing member of the leakage source through the outer surface part having the leakage absorbing ability. It will be possible to help. Normally, there are no problems such as stagnation of air that is easy to clean due to the leaked liquid absorbing members being spaced apart from each other.

[0196] Thus, the leakage liquid absorbing method of the present invention can be realized under various circumstances in addition to being realized by the battery covers in the first to seventh embodiments.

[0197] In addition, the shape of the battery cover may not be a belt, a cylinder, or a semi-cylinder.

[0198] FIGS. 17A to 17C are diagrams showing examples of shapes other than the shapes of the battery covers of the first to seventh embodiments.

[0199] For example, the battery cover 2 in Fig. 3 may have a cylindrical shape as shown in Fig. 17 (a), or may have a hen egg-like shape as shown in Fig. 17 (b). It doesn't matter. If the battery cover has sufficient elasticity, it will be deformed into a shape close to the shape of the cylindrical battery after it is attached, so it can be used by being attached to the cylindrical battery.

[0200] In other words, there is a through-hole for using the convex portion of the positive electrode having the cylindrical shape of the cylindrical battery for locking even in a hemispherical shape, a semi-egg shape, a rectangular shape, or other shapes. After inserting the cylindrical battery with sufficient expansion and contraction of the negative electrode energization through-hole and cylindrical battery insertion slot, the cylindrical battery is not pushed out of the insertion slot due to the shrinkage force of the cover as a whole. This is because if the periphery of the insertion opening has a sufficient contraction force, it is deformed so as to be in close contact with the cylindrical battery by being locked while being extended to the cylindrical battery.

[0201] In this case, if the through-hole for using the convex part of the positive electrode of the cylindrical battery for locking is larger than the diameter of the convex part of the positive electrode, the cover is displaced by the battery force, resulting in a gap and leakage liquid. The through hole for locking the convex part of the positive electrode has a force large enough to allow the convex part of the positive electrode to penetrate, and the hole diameter expands around the hole. By enlarging, it is desirable to have a size that allows the convex part of the positive electrode to penetrate.

[0202] The arrow pointing in the up and down diagonal direction on the left side of Fig. 17 (a) indicates the extending direction of the negative electrode energizing through-hole and cylindrical battery insertion hole of the spherical battery cover, and the left-pointing arrow The insertion direction of the cylindrical battery with respect to a battery cover is shown. [0203] The arrow on the left side of Fig. 17 (b) pointing diagonally upward and downward indicates the direction of extension of the through-hole and cylindrical battery insertion hole for negative electrode energization of the egg-like battery cover. The arrow indicates the direction in which the cylindrical battery is inserted into the battery cover.

[0204] FIG. 17 (c) is a diagram in which the battery cover having the spherical and egg-like shape shown in FIGS. 17 (a) and 17 (b) is attached to a cylindrical battery.

[0205] As shown in Fig. 17 (c), if there is elasticity, it can be attached to the cylindrical battery while being stretched, and can be brought into close contact with the cylindrical battery. If there is a first through-hole that can be locked to the columnar projection, the battery cover is not cylindrical, and it is difficult for the negative electrode to be energized at the diagonal of the first through-hole that is difficult to slip off both during and after installation. If the second through hole is provided, it can function as a battery cover. In other words, battery covers can be made in various forms with emphasis on production costs.

[0206] Here, it is possible to produce battery covers that can be attached to batteries of various shapes, as well as battery covers for cylindrical batteries, for batteries other than cylindrical batteries. For example, even with a rectangular parallelepiped-like battery, it is possible to produce a battery cover for preventing or reducing damage caused by leaked liquid on the device used. Therefore, a battery cover that can be attached to a rectangular parallelepiped battery is described below.

In the case of a cuboid-like battery, it is possible to produce a cuboid-like battery cover that uses at least one of the positive electrode convex portion and the negative electrode convex portion for locking. Hereinafter, as an example of a rectangular parallelepiped battery, a battery in which convex portions of a positive electrode and a negative electrode, which are also called square batteries, are on the same surface will be described.

[0208] FIG. 18 is a diagram showing an overview of a battery cover that uses the positive and negative electrode protrusions of a rectangular parallelepiped-shaped battery for locking, and a procedure for mounting the rectangular parallelepiped-shaped battery.

As shown in FIG. 18, first, (1) the positive electrode and negative electrode protrusions are passed through the two through holes on the left side of the battery cover 8, respectively. Next, (2) While holding the two through holes on the left side with the convex part of the battery, pull the surface with the two through holes on the right side from the front side of the battery to the convex part of the positive and negative electrodes of the battery. Lock. In this state, the battery cover 8 is in close contact with the battery due to the elasticity of the battery cover 8. In this way, it is possible to produce a battery cover that can be mounted using the convex portions of the battery other than the cylindrical shape for locking. [0210] Note that the rectangular parallelepiped battery cover 8 covers both the positive and negative electrode end faces of the rectangular parallelepiped battery, and is fixed to the rectangular parallelepiped battery on both surfaces. If there is an edge that forms a bent part, the battery cover can be more stably attached to a rectangular parallelepiped battery.

[0211] Further, if the edges that form the bent portions for locking the rectangular parallelepiped battery are present on both sides of the rectangular parallelepiped battery cover, the positive and negative projections are penetrated. Even if the hole does not have a locking function, the battery cover can be attached to a rectangular parallelepiped battery.

[0212] A simple strip-shaped leaked liquid absorbing member having one locking hole at each end for locking using the convex portion of the positive electrode of the cylindrical battery is wound around the cylindrical battery. By attaching and locking, it is possible to adhere to the cylindrical battery, and if a through-hole for energizing the negative electrode is formed between the two through-holes for locking the convex part of the positive electrode, the leakage liquid is absorbed. The member does not hinder energization of the cylindrical battery, and it is possible to produce a battery cover that can be attached to a rectangular parallelepiped battery in the same manner as a force that can be used as a battery cover. For example, the battery-shaped battery cover has two through-holes for negative electrode energization, and the size is adjusted so that it can be locked to the convex part of the negative electrode of the rectangular battery. Each one of the negative electrode convex portion locking through holes is made on the right side of the battery cover long axis direction of the positive electrode convex portion locking through holes at both ends of each. Furthermore, when a battery having a rectangular parallelepiped shape with a battery cover attached is loaded into the battery loading part of the battery-using device, the entire shape of the battery cover may be prepared so that the battery cover does not protrude from the loading part. In addition, the negative hole protrusion through holes are made on the right side of the positive electrode protrusion through holes, but the battery cover for the rectangular parallelepiped-shaped battery can be formed on the left side, upper side or lower side. Production is possible.

[0213] Further, a battery cover having a rectangular parallelepiped shape can be manufactured by applying the form of the battery cover 2 of the second embodiment shown in FIG. For example, the shape of the battery cover is a rectangular parallelepiped shape, and two through-holes for energization of the positive electrode convex portion and the negative electrode convex portion of the rectangular parallelepiped battery are formed on the surface facing the insertion hole of the rectangular parallelepiped battery. What is necessary is just to produce. By doing so, a battery cover having a rectangular parallelepiped shape can be produced. In other words, the surface having the insertion hole has a bent portion for locking, and the opposite surface has a bent portion for locking and two through holes for conducting electricity. . Of course, the through hole for the positive electrode is used for the negative electrode. The through hole may have a locking function with respect to the convex portion of the positive electrode or the convex portion of the negative electrode. If the through hole has a locking function, the battery cover is further displaced from the battery.

[0214] Further, in the cover for the cylindrical battery shown in FIGS. 17 (a) and 17 (b), it can be locked to the convex portion of the positive electrode and the convex portion of the negative electrode at a position different from the battery insertion hole. After the insertion of a rectangular parallelepiped-shaped battery that has two large through-holes and the battery insertion slot is sufficiently stretchable, the rectangular parallelepiped-shaped battery is pushed out by the contraction force of the leaked liquid absorbing member as a whole. If there is enough shrinkage around the insertion port, it can be used as a cover for a rectangular parallelepiped battery. That is, since the battery insertion hole is not used for energization, it is not necessary that the locking through hole is diagonally positioned with respect to the battery insertion hole.

[0215] It is also possible to produce a battery cover having a rectangular parallelepiped shape by applying the battery cover 3 for a cylindrical battery of the third embodiment shown in FIG. For example, the shape of the battery cover is made into a bag shape into which a rectangular parallelepiped battery can be inserted, and the positive electrode convex portion or the negative electrode convex portion of the rectangular parallelepiped battery is locked to each end on the insertion port side. For this purpose, a through hole should be created. Of course, a through-hole for engaging with both the positive electrode convex portion and the negative electrode convex portion of the rectangular parallelepiped battery may be produced. By doing so, a battery cover having a rectangular parallelepiped shape can be produced.

[0216] Further, a battery cover having a rectangular parallelepiped shape can be manufactured by applying the battery cover 7 for a cylindrical battery of the seventh embodiment shown in FIG. The through hole for the convex portion of the positive electrode and the through hole for the convex portion of the negative electrode may be formed on one independent surface, and the shape of the independent surface may be made a rectangular shape in accordance with the rectangular parallelepiped battery. The other independent surface also needs to have a rectangular shape, but it is not necessary to create a through hole. By doing so, a battery cover having a rectangular parallelepiped shape can be produced. Needless to say, the through hole for the positive electrode or the through hole for the negative electrode may have a locking function for the convex portion of the positive electrode or the convex portion of the negative electrode. If the through hole has a locking function, the battery cover will be further displaced.

[0217] As described above, the bent portion for locking the rectangular parallelepiped-shaped battery is provided on the independent surface opposite to the independent surface having the through hole for the positive electrode convex portion and the through hole for the negative electrode convex portion. Although it is necessary, the locking of the independent surface having the convex portion of the positive electrode and the convex portion of the negative electrode is formed in at least one of the bent portion, the positive hole locking hole, or the negative electrode protrusion locking hole. Just do it. [0218] Further, as an example of a rectangular parallelepiped-shaped battery, the power described to explain a battery in which the convex portions of the positive electrode and the negative electrode, which are also called square batteries, are on the same plane, batteries such as lead storage batteries used in automobiles, personal computers, etc. Even with a rectangular parallelepiped-like battery, the leaking liquid absorbing member has leakage absorbing ability and expansion / contraction ability! / If attached, it uses a bent part to use the rectangular parallelepiped shape for locking A battery cover can be produced, and if the terminal part of the electrode of the rectangular parallelepiped battery has a convex portion, the bent portion or the convex portion for using the rectangular parallelepiped shape for locking can be engaged. A battery cover that can be attached to the battery can be produced using at least one of the locking holes for use in stopping. In addition, if the leaking liquid absorbing member has elasticity and leaking liquid absorbing ability and can be locked and mounted using the convex part of the battery, it can also be mounted on batteries with shapes other than cylindrical and rectangular parallelepiped shapes. A simple battery cover can be made

[0219] As described above, in order to solve the above-mentioned problem, the battery cover for a rectangular parallelepiped battery of the present invention is also a rectangular parallelepiped. A battery cover for a rectangular parallelepiped-shaped battery that is in close contact with a battery of a uniform shape and covers the rectangular parallelepiped-shaped battery, and the battery cover that absorbs leakage liquid from the battery has stretchability and leakage liquid absorption capacity. In addition, at least one of a locking hole for using the positive electrode convex portion or the negative electrode convex portion of the battery for locking and a bent portion for using the cylindrical shape or the rectangular parallelepiped shape of the battery for locking are used. If it does not extend, it can be attached to the battery because it is formed in an annular shape with a size that makes it impossible to insert the corresponding battery. The battery cover It can be assumed that the battery cover absorbs leaked liquid from the battery by attaching one to the battery.

[0220] Further, in all battery covers of the present invention, if through holes for energizing the positive electrode and the negative electrode are formed as necessary, the battery cover does not hinder the energization of the battery, and the positive electrode protrusions or the like. If there is a locking hole that uses the negative projection for locking, the locking hole can be used for energization.

[0221] Further, the sizes of the through hole 401a and the through hole 401b of the battery cover 4 of Embodiment 4 shown in FIG. 6 may be different. Because there are locking bends on each independent surface, through holes 40 Even if the size of la and the through hole 401b is different, it can be mounted on the cylindrical battery, and either the through hole 40 la or the through hole 401b can be used to lock the convex part of the positive electrode of the cylindrical battery. Even if it is a through-hole, mounting | wearing to a cylindrical battery is possible. In this case, however, it is necessary to attach the battery cover with the positive electrode of the cylindrical battery facing the independent surface. If the through hole 401a or the through hole 401b is a through hole for energizing and locking to the convex part of the positive electrode of the cylindrical battery, the other surface having the through hole for locking the convex part is the other side. By attaching to the cylindrical battery so that it is on the independent surface of the battery, it becomes a battery cover that is less likely to slip.

[0222] The through-hole 201 of the battery cover 2 of the second embodiment shown in FIG. 3 may be of a size that does not involve the engagement of the cylindrical convex portion of the positive electrode of the cylindrical battery 40. . If the through-hole 201 does not have a locking function with respect to the positive electrode projection, the through-hole 201 tends to be displaced, and the retention of leaked liquid will be inferior. However, the bending portion force around the surface having the through-hole 201 is limited. The battery cover can be attached to the cylindrical battery 40 because it is locked to the circumferential side surface. Further, if the through-hole 201 is of a size that can be used for inserting a cylindrical battery, like the through-hole 202, the cylindrical battery can be inserted with either the through-hole 201 or the through-hole 202, and the cylindrical The battery can be inserted into the battery cover from either the positive electrode side or the negative electrode side.

[0223] In addition, the through-hole 701 of the battery cover 7 of Embodiment 7 shown in FIG. 9 is not involved in the locking of the cylindrical convex portion present in the positive electrode of the cylindrical battery 40! Ok. If the edge that forms the bent portion of the circumference of the independent surface having the through hole 701 is wide enough to be locked to the circumferential side surface of the cylindrical battery 40, the independent surface having the through hole 701 is the cylindrical battery 40. Can be locked to. When the through hole 701 is large, the battery cover can be mounted regardless of which side of the positive surface of the cylindrical battery 40 is the independent surface having the through hole 701 and the independent surface having the through hole 702.

[0224] In short, the battery cover of the present invention has stretchability and leakage fluid absorption capability, and has at least one locking hole and a battery for using the convex portion of the positive electrode of the battery or the convex portion of the negative electrode for locking. It is formed integrally with at least one of the bent parts to use the cylindrical shape or rectangular parallelepiped shape for locking, and the inner space of a size that makes it impossible to insert the corresponding battery unless it is extended If the battery cover is formed in an annular shape, the battery can be attached to the battery, and the battery cover is brought into close contact with the battery and absorbs leaked liquid from the battery with a contraction force derived from the stretchability. Through hole for energizing positive electrode or negative electrode as needed Can be produced.

[0225] Note that if at least part of the entire area excluding the positive electrode and the negative electrode of the battery need not be covered, the leaked liquid can be absorbed. In addition, the term “close contact” as used herein includes a state in which the entire battery cover does not have to be in a complete contact state but is in close contact with the battery.

[0226] Further, for example, the auxiliary covering portion may be detachably attached to the semi-cylindrical portion that is the main portion of the battery cover.

[0227] Each battery cover in Embodiments 1 to 7 and the like described above can absorb leaked liquid due to its structure, and can prevent or reduce damage to battery-operated equipment due to the leaked liquid. Moreover, these structures are simple and can be produced at low cost. In addition, it is a single unit and does not require detailed work such as mounting multiple components in combination. Therefore, the user can easily attach it to the battery.

[0228] Further, the amount of leakage liquid from the battery flowing out of the cover can be reduced by processing such as impermeable coating. Of course, it is possible to completely prevent the battery cover from flowing out of the cover as long as it is within the amount that can be stored inside.

[0229] Also, in the case of battery cover 1 of Embodiment 1 shown in Fig. 1, each user can be supplied by being cut into a desired length for use. Because the battery cover 1 is stretchable, the inner space is adjusted for use with single and single, single and single, single or three, and single and single and three and four cylindrical batteries. Can be supplied longer than the length of the cylindrical battery in the long axis direction, and can be cut and used according to the battery used. Furthermore, it is possible to share a cylindrical battery and a square battery. In other words, by preparing the battery cover by adjusting the size and shape of the inner space and making the length in the long axis direction sufficiently long, various types of shapes can be provided for a battery cover that can be shared by batteries. Is possible.

FIG. 19 shows the battery cover before and after cutting.

[0231] Fig. 19 (a) shows a battery cover that has a cylindrical shape inside the tube before cutting and has a tubular shape as a whole. Fig. 19 (b) shows a state after cutting the battery cover shown in Fig. 19 (a). FIG. FIG. 19 (c) is a diagram showing a state in which the battery cover after cutting is attached to batteries of various shapes. [0232] Fig. 19 (d) is a diagram showing a battery cover with a rectangular pillar shape before cutting, and Fig. 19 (e) is a diagram showing a state after cutting the battery cover shown in Fig. 19 (d). In addition, the battery cover after cutting shown in FIG. 19 (e) can be attached to batteries of various shapes.

As shown in FIG. 19, a battery cover that is long in the long axis direction is provided, and each user can cut it to a required length and use it as a battery cover.

[0234] As described above, the present invention is inexpensive and easy to install, and the battery cover and leakage liquid absorbing method for reducing damage caused by battery leakage, and the leakage liquid absorbing method from other pipes, etc. Can be provided.

Industrial applicability

[0235] The present invention can reduce damage to battery-operated equipment due to battery leakage. In addition, the battery cover of the present invention has a simple structure, can be manufactured at low cost, and is easy to handle. Therefore, it is useful as a leakage liquid absorption method using battery covers for many battery-powered devices such as remote controllers for AV devices such as TVs and VCRs, toys, flashlights, watches, and radios.

Claims

The scope of the claims

[1] Battery cover force that absorbs leakage of battery power At least one locking hole that has the ability to stretch and absorb leakage, and to use the positive or negative protrusion of the battery for lockingぉ and at least one of the bent portions to use the cylindrical shape or rectangular parallelepiped shape of the battery for locking, and are integrally formed! If it does not extend, insertion of the corresponding battery is not possible. By being formed into an annular shape having an inner space of a possible size, it can be attached to the battery, and the battery cover is brought into close contact with the battery by a contracting force derived from the stretchability, and leakage from the battery A leaked liquid absorption method for absorbing liquid,

Attaching the battery cover to the battery while extending the battery cover;

The battery cover is in close contact with the battery by the contraction force, and the battery with the battery cover is loaded into a battery loading site of a battery-using device;

The battery force, the step of flowing out the leaked liquid;

The leaked liquid is absorbed by the battery cover;

A method for absorbing leakage liquid from a battery, comprising:

[2] Leakage prepared by adding a gelling agent that has at least a part of the outer surface to absorb leaking liquid and is compressed for thinning or absorbs the leaked liquid to swell and expand. A leaked liquid absorbing method performed using a leaked liquid absorbing member having liquid absorbing ability,

The step of installing or installing the one leakage liquid absorbing member in a place where it can become a leakage source, and the position of the outer surface of the one leakage liquid absorbing member in a place different from the place where the one leakage liquid absorbing member is mounted or installed The part having the leakage absorbing ability and the part having the leakage absorbing ability on the outer surface of the second leakage absorbing member are opposed to each other and separated from the one leakage absorbing member by a space. Installing or installing the second leakage absorbing member, and

A step in which the one leakage liquid absorbing member absorbs the leakage liquid of the leakage source force and swells and expands;

A step in which the one leaked liquid absorbing member expanded and swelled contacts the second leaked liquid absorbing member; The step of transferring the leaked liquid from the outer surface of the one leaked liquid absorbing member to the outer surface of the second leaked liquid absorbing member;

The second leaked liquid absorbing member includes a step of absorbing and expanding the leaked liquid to swell and expand the leaked liquid absorbing method.

[3] From the fact that the battery cover is further compressed for thinning or contains a gelling agent that swells and expands when the leaked liquid is absorbed, the leaked liquid becomes the battery. When absorbed by the cover,

Further, the battery cover swells and expands and spreads into a gap between the battery and the battery loading portion.

The leaked liquid absorption method according to claim 1, comprising:

[4] When at least a part of the outer surface of the battery cover further has leakage liquid permeability, a plurality of the battery covers in which at least a part of the outer surface has leakage liquid permeability and a plurality of the batteries are used. The leakage liquid absorbing method according to claim 3, wherein the leakage liquid from the unspecified battery is absorbed.

Attaching the battery cover to the battery while extending the battery cover;

A step in which the battery cover is in close contact with the battery by a contraction force derived from the stretchability;

A step of loading a plurality of the batteries, each having a battery cover attached thereto, into a battery loading portion of a battery-operating device with the leaking liquid permeable portions of the outer surface facing each other; and an unspecified battery power leakage liquid flowing out And steps to

The battery cover is attached to the leaked battery! /, And the battery cover absorbs the leaked liquid.

A step in which the battery cover swells and expands and extends into a gap around the battery and the battery loading portion;

The leakage liquid is transmitted to the battery cover attached to the battery that has not leaked and absorbed through a portion of the outer surface having a leakage liquid permeability;

A method for absorbing leakage liquid from a battery, comprising:

[5] The leaked liquid absorption method is such that the battery cover is compressed or gelled for thinning. When a plurality of the batteries with the battery cover having at least a part of the outer surface permeable to leaking liquid are included in the battery loading part of a device using a plurality of batteries, If the battery covers are in contact with each other,

A step of contacting a nearby battery cover by swelling and expanding the battery cover attached to the battery that has generated the leakage liquid.

The leakage liquid absorbing method according to claim 4, wherein:

[6] The leakage liquid absorbing method may further include, when at least a part of the outer surface of the battery cover has leakage liquid permeability, a plurality of the batteries with the battery cover mounted thereon after being loaded into the battery mounting portion. The battery cover has a leakage liquid permeability! /, By placing an auxiliary absorber other than the battery cover opposite the outer surface,

Including the step of absorbing the leaked liquid through the outer surface of the battery cover having the leaked liquid permeability.

The leakage liquid absorbing method according to claim 4, wherein:

[7] The leaked liquid absorption method is a leaked liquid absorption method that further reduces the leak rate of the leaked liquid from the battery that is leaking, and the battery that does not leak and has sufficient power remaining The battery cover attached to the battery absorbs the leaked liquid, and short-circuits the positive electrode and the negative electrode of the battery in which sufficient power remains, thereby consuming electric power early and causing leakage. Lowering the load voltage applied to the battery to cause leakage and reducing the leakage rate of the leakage of the battery power

The leakage liquid absorbing method according to claim 4, wherein: