KR101306275B1 - Reserve battery for enhancing shock resistance and endurance - Google Patents

Abstract

PURPOSE: A reserve battery is provided to remarkably reduce the fracture rate of a partition wall by absorbing and dispersing external impact transferred from sides of a case. CONSTITUTION: A reserve battery (1) includes an electrode part (7) consisting of a positive electrode, a separator, and a negative electrode; an electrolyte; and a case (2) the inner space of which is separated by a separating part (5) and which accommodates the electrolyte and the electrode part into one separated space and the other separated space. The separating part includes a partition wall which is a plate in shape and is broken when an impact of predetermined value or greater is applied, and a protection case (31) the upper and lower parts of which are open and which has an inner accommodation space to insert and to install the partition wall and absorbs and disperses impacts by coupling the outer side thereof to the inner side of the case.

Description

Reserve battery for enhancing shock resistance and endurance

The present invention relates to a storage battery having high impact resistance and durability, and specifically, a protective case and a support part absorb, disperse, and alleviate an external shock, in particular, an impact transmitted from the side of the case, thereby reducing the The present invention relates to a storage battery that does not damage a partition wall, thereby increasing durability and impact resistance, and thus exhibiting desired electrode performance when used.

A reserve battery is a battery designed to overcome the shortcomings of a primary battery that does not generate electricity as time passes due to continuous self-discharge.

Typically, a storage battery is accommodated in a case having an upper and a lower opening, a partition wall of glass material which is inserted into the case to separate the inner space of the case into an upper space and a lower space, and an upper space and a lower space of the case, respectively. It consists of the electrolyte solution and the electrode portion, and the bottom and header are respectively provided in the upper and lower ends of the opening of the case, it is configured to react the electrolyte and the electrode by breaking the partition wall separating the electrolyte solution from the electrode portion when the battery is used.

In addition, since G / M is made of glass material and is designed to be easily broken by an external impact, the G / M is damaged by a momentary shock during use, and the electrolyte moves to the electrode to activate the electrode.

In addition, in the storage battery, an electrolyte injection hole is formed in the side wall of the case to inject the electrolyte into the space accommodating the electrolyte, and when the assembly and sealing of the case are completed, the electrolyte is injected into the electrolyte receiving space through the electrolyte injection hole and then the electrolyte is injected. Battery manufacturing is completed by sealing the balls.

In this way, the storage battery is kept in an inactive state by separating the electrolyte and the electrode by the partition wall before use, and when the battery is used, the partition wall is damaged by the external force and the electrolyte is moved to the electrode to be in contact with the electrode to activate the electrode. It can be stored for a long time and has the advantage of exerting the desired battery performance.

However, in the conventional storage battery, the partition wall is formed of a glass material and is formed of a glass material having low durability. Since a separate means and method for protecting the partition wall are not applied, the partition wall is easily broken when an external impact occurs. The problem arises. Therefore, in the conventional storage battery, since the partition wall is easily broken, the electrode is activated at the time of use, and thus the self-discharge is in progress. Thus, the battery can not exhibit the desired battery performance such as shortening its lifespan.

In particular, the conventional storage battery has an external impact on the side of the case because the outer surface of the partition wall is coupled to the inner surface of the case, that is, the barrier wall is coupled to the case with a narrow contact area, and the side wall of the case is made thin due to the miniaturization of the battery. When this occurs, inadequate deformation occurs on the side wall of the case, and thus, a barrier that is weak in its durability while having a small area of support is more vulnerable to external impact.

In addition, in the conventional storage battery, when the assembly of the case is completed, fine impact is generated on the sidewall of the case during the electrolyte injection and sealing operation, and thus, the barrier rib is damaged during battery manufacturing due to the slight deformation of the barrier rib.

In order to overcome this problem, a method of accommodating an electrolyte solution inside an ampoule by installing a separate ampoule inside the case has been studied and used.

1 is a cross-sectional view showing a storage battery described in Korean Application No. 10-2012-0007143 filed by the applicant of the present invention.

The storage battery 100 (hereinafter, referred to as a conventional technology) of FIG. 1 includes a case 101 having a space therein and having a lower opening, a header 102 installed on a lower opening of the case 101, and a case. The cell guide 103 in which the cell 131 inserted into the cell 101 is inserted and stacked to generate electricity, and the electrolyte is filled inside the cell guide 103. The ampoule 105 and the weight 107 is provided on the ampoule 105 to prevent the flow of the ampoule 105 and to increase the impact acceleration weight.

In addition, the prior art 100 further includes a support 109 supporting the ampoule 105 while absorbing and mitigating the internal shock transmitted to the ampoule 105.

The support 109 includes a shock absorbing portion 191 to absorb and mitigate the internal shock of the ampoule 105.

The support 109 also includes at least one support 191 such that the edge 193 with the buffer 191 is destroyed from the body 195 by the load applied from the ampoule 105.

As described above, the prior art 100 includes a support 109 to absorb and mitigate an external shock to prevent breakage of the ampoule 105 filled with the electrolyte.

However, the prior art 100 has a small space, the manufacturing process is cumbersome because a variety of equipment to be installed in a precise design inside the case 101, the manufacturing cost increases the problem occurs.

In addition, in the prior art 100, the manufacturing process becomes more cumbersome because the support 109 must be separately installed to absorb and alleviate the internal impact.

Accordingly, the research to increase the durability of the battery by the simple installation but reducing the breakage rate of the partition is urgent situation.

The present invention is to solve such a problem, the problem of the present invention is to form a hollow cylindrical shape inside the outer surface is coupled to the inner surface of the case is coupled to include a protective case that the partition is fitted into the inner space It is to provide a storage battery that can absorb and disperse the external shock, in particular the external shock transmitted from the side of the case to significantly reduce the damage rate of the partition wall.

In addition, another solution of the present invention is formed in a ring shape is inserted into the protective case is installed in the longitudinal direction of the case further includes a support portion which is installed on the partition wall by the support portion by pressing the inner surface of the protective case to the external impact This is to provide a storage battery that prevents the side of the protective case from being deformed and at the same time minimizes the force transmitted from the protective case to ensure that the bulkhead is safely stored against external shocks below a certain level.

Solution to Problem The present invention for solving the above problems is an electrode portion consisting of a positive electrode, a separator and a negative electrode, and the electrolyte and the inner space is separated by the separating portion is separated into the electrolyte and the electrode portion in one space and the other space is accommodated A storage battery including a case, the separator comprising: a plate formed in a plate shape and destroyed when subjected to a shock of a predetermined value or more; The upper and lower portions are opened, the receiving space is formed therein, the diaphragm is inserted into the receiving space, the outer surface is coupled to the inner surface of the case includes a protective case for absorbing and mitigating the shock transmitted from the outside .

In the present invention, it is preferable that the diaphragm is made of glass.

In addition, in the present invention, the protective case preferably further includes a protruding jaw protruding from the inner side to the inner side so that the diaphragm is seated.

In addition, the present invention further includes at least one support portion formed in an annular ring shape and inserted into the receiving space of the protective case spaced apart from the diaphragm, thereby supporting the inner side of the protective case by external pressure. It is preferable to prevent the deformation of the protective case.

According to the present invention having the above-mentioned problems and solutions, the protective case is installed inside the case is separately installed inside the case to absorb and mitigate the external shock, in particular the external shock transmitted from the side of the case damage of the bulkhead due to fine impact By preventing the increase in durability and impact resistance of the battery.

In addition, according to the present invention, since the support portion supports the inner surface of the protective case, not only disperses and mitigates the external impact, but also prevents deformation of the side surface of the protective case due to the external impact, thereby further increasing durability and impact resistance of the battery.

1 is a cross-sectional view showing a storage battery described in Korean Application No. 10-2012-0007143 filed by the applicant of the present invention.
2 is a cross-sectional view showing a storage battery which is an embodiment of the present invention.
3 is a conceptual diagram for explaining FIG. 2.
FIG. 4 is an assembled perspective view for describing the separating part of FIG. 2.
5 is a side view showing a storage battery as a second embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

2 is a cross-sectional view illustrating a storage battery according to an embodiment of the present invention, and FIG. 3 is a conceptual diagram for describing FIG. 2.

The storage battery 1 of FIGS. 2 and 3 includes a cylindrical case 2 having an upper and lower portions, a protective case 31, a partition 33, and a support part 35, and is installed inside the case 2. A separating part 3 separating the inner space of the case 2 into the upper space 11 and the lower space, an electrolyte solution 4 stored in the upper space 11, and an open upper end of the case 2. The upper plate 5, which is a disk member, which is to be made to be lowered, a percussion pin 6 installed downward on the center lower surface of the upper plate 5 to break the partition wall when an external pressure is applied, and an anode pin 71 insulated by a sealing material. A positive electrode 81 and a negative electrode 83 provided in the center and provided in the header 7 to seal the lower end of the case 2 and in the lower space 13 which is a space between the header 7 and the partition 33. And an electrode portion 8 constituted by the separator 85.

In the present invention, for convenience of description, the electrode part 8 is described as an example in which the anode 81, the separator 85, and the cathode 83 are stacked in one layer in the longitudinal direction, but the The configuration is not limited thereto, and may include various shapes and structures capable of generating electricity according to the movement of the introduced electrolyte 4 having the positive electrode 81 and the negative electrode 83.

In addition, the separating part 3 is formed in a cylindrical shape having an upper and lower parts, and is provided with a protruding jaw 311 protruding inward, and is provided to protect the inner case of the case 2 and a protruding jaw ( 311 is seated on the upper part of the partition 33 to separate the inner space of the case into the upper space 11 and the lower space 13, and inserted into the protective case 31 is installed in the partition 33 in the longitudinal direction It is made of a support portion 35 that is spaced apart, a detailed description thereof will be described in FIG.

The case 2 is formed in a cylindrical shape having upper and lower portions opened and having a space therein.

In addition, the case 2 has an electrolyte injection hole 21 penetrating the side surface at the upper side, and the electrolyte injection hole 21 is sealed when the electrolyte solution is injected into the upper space 11.

In addition, a disk-shaped upper plate 5 is provided at the opened upper end of the case 2, and a header 7 is provided at the opened lower end.

The upper plate 5 is installed at the upper end of the case 2 to seal the inside of the case 2.

Also, in the center of the upper plate 5, a percussion device 6 which breaks the partition 33 when an external pressure of a predetermined set value (Threshold, TH) is applied is installed downward.

The header 7 is installed at the open lower end of the case 2 to seal the inside of the case 2.

The header 7 also includes a positive electrode pin 71 and a negative electrode terminal insulated by a sealing material GTMS (Glass to Metal Seal). At this time, since the configuration of the positive terminal and the negative terminal of the header 7 is a capped technology, detailed description thereof will be omitted.

The electrode part 8 is provided in the lower space 13 of the case 2, and laminated | stacked so that the anode 81 and the cathode 83 may be isolate | separated by the separator 85. As shown in FIG. At this time, the positive pin 71 of the header 7 is in electrical contact with the positive electrode 81.

FIG. 4 is an assembled perspective view for describing the separating part of FIG. 2.

Separation portion 3 is formed in a cylindrical shape with the upper and lower portions are provided with a protruding jaw 311 protruding inward to be installed to the inner surface of the case 2, the protective case 31, the protruding jaw 311 The partition 33 is mounted on the upper part of the case and separates the inner space of the case into the upper space 11 and the lower space 13, and is inserted into the protection case 31 and installed in the partition 33 in the longitudinal direction. It consists of a support 35 which is spaced apart.

As shown in FIGS. 2 to 4, the protective case 31 is formed in a cylindrical shape having an upper and lower portions with a space therein, and in detail, is formed in a cylindrical shape whose length is smaller than the length of the case 2. On the inner side, a protruding jaw 311 protruding inward from the inner side is formed along the inner circumferential surface. At this time, the partition wall 33 is seated on the upper portion of the protruding jaw 311.

In addition, the protective case 31 is installed inside the case 2 such that the outer side thereof is treated to the inner side of the case 2, and in detail, the case 2 is adjacent to the opened upper portion of the case 2. It is installed inside.

In addition, the protective case 31 has a second electrolyte inlet hole 313 corresponding to the electrolyte inlet hole 21 of the case 2 is formed on the upper side so that the electrolyte can be filled in the upper space (11).

In addition, the protective case 31 is made of the same material as the case 2, and in detail, it is preferable that the stainless (Stainless) material.

As described above, the storage battery 1 according to the embodiment of the present invention further includes a protective case 31 inside the case 2, and the protective case 31 absorbs and alleviates an external shock transmitted from the side of the case 2. By reducing the breakage rate of the partition wall 33, durability and impact resistance are increased.

In addition, in the prior art, the partition wall is easily damaged due to the deformation that is inadequate in the region of the side of the case that is directly transmitted from the outside, but in the present invention, since the protective case 31 is manufactured separately from the case 2, the case 2 is inadequate. Since the deformation is not transmitted to the protective case 31, the partition wall is not damaged against the impact below the set value TH, thereby further increasing durability and impact resistance.

The barrier rib 33 is formed of a plate member having an area of G / M 51, and is made of a material having weak durability and impact resistance, and in detail, the barrier rib 33 is preferably made of glass.

In addition, the partition wall 33 is inserted into the inner side of the protective case 31 and seated on the upper part of the protruding jaw 311 of the protective case 31 so that the protective case 31 is inserted into the case 2 and the case 2 is installed. The inner space is separated into the upper space 11 and the lower space 13, and the electrolyte is injected and stored in the upper space 11.

At this time, the partition 33 is preferably the outer diameter is formed to the same size as the inner diameter of the protective case 31 to be fitted to the protective case 31.

That is, since the partition 33 is made of a glass material, it is designed to be easily broken from an external impact, such that the electrolyte solution 4 stored in the upper space 11 of the case 2 moves to the electrode part 8.

The support part 35 is formed in an annular annular shape and is installed to be inserted into the protective case 31 and spaced apart from the partition wall 33 in the longitudinal direction. At this time, the support 35 is preferably inserted into the intermediate point of the protective case 31 in the longitudinal direction.

In addition, the support portion 35 is formed so that the outer diameter is the same size as the inner diameter of the protective case 31 is pressed into the inside of the protective case 31 so that the outer surface pressurizes the inner surface of the protective case 31.

That is, since the support part 35 applied to the present invention supports the inner surface of the protective case 31, not only disperses and mitigates the external shock transmitted to the partition wall, but also minimizes the deformation of the side of the protective case due to the external shock. The durability and impact resistance of the can be significantly increased, thereby solving the problems of the prior art that the partition wall is easily broken even in the minute impact.

In addition, the storage battery 1, which is an embodiment of the present invention, does not have a separate ampoule and related components for protecting the ampoule, and precise design and manufacturing process for installing them are omitted, thereby reducing manufacturing cost and time. You can.

5 is a side view showing a storage battery as a second embodiment of the present invention.

As shown in FIG. 5, the storage battery 200 according to the second embodiment of the present invention includes a case 2, a percussion device 6, an electrolyte solution 4, and an electrode having the same configuration as the storage battery 1 of FIG. 2. (8), the upper plate 5 and the header (7).

In addition, the storage battery 200 includes a protective part 31 and a partition wall 33 having the same configuration as that of the storage battery 1 of FIG. 2, and a first support part inserted into the protective case 31. 203 and a second support 205.

The first support part 201 and the second support part 205 have the same shape as the support part 35 of FIG. 2, but are inserted into the protection case 31 and are installed at intervals in the longitudinal direction to store the storage battery 1. ) Durability and impact resistance can be further improved.

In addition, in FIG. 5, for example, two support parts are described for convenience of description, but the number of support parts is not limited thereto, and the number of support parts may be appropriately determined according to the intended durability.

1: reserve battery 2: case 3: header
5: Separator 7: Electrode 9: Electrolyte
11: Upper space 13: Lower space 51: Plate
53: support part 55: elastic part

Claims (4)

In a storage battery comprising: an electrode portion comprising a positive electrode, a separator, and a negative electrode; and a case in which an internal space is separated by an electrolyte solution and a separation unit, and the electrolyte solution and the electrode unit are separately received in one space and the other space:
The separator
A plate formed in a plate shape and destroyed when subjected to a shock equal to or more than a predetermined value;
The upper and lower parts are opened, the receiving space is formed therein, the diaphragm is inserted into the receiving space, the outer surface is coupled to the inner surface of the case includes a protective case for absorbing and mitigating the shock transmitted from the outside Storage battery characterized by the above. The storage battery of claim 1, wherein the diaphragm is made of glass. The storage battery of claim 1, wherein the protective case further includes a protruding jaw protruding inwardly from an inner surface to seat the diaphragm. The support of claim 1, further comprising at least one support formed in an annular ring shape and inserted into the receiving space of the protective case to be spaced apart from the diaphragm. The storage battery, characterized in that by pressing the side to prevent deformation of the protective case due to external impact.

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