CN213366646U - Soft package lithium ion battery - Google Patents

Abstract

The utility model discloses a belong to lithium ion battery technical field, specifically be a soft package lithium ion battery, it includes: main part, diaphragm, the layer and the plastic-aluminum layer absorb water, two utmost point ears are installed on main part inner wall top, just the utmost point ear top runs through the main part top and extends to outside, the negative pole is installed to the main part outer wall, negative pole externally mounted has the diaphragm, the micropore has been seted up on the diaphragm, the colloid is installed to the micropore top, diaphragm externally mounted has the positive pole, positive externally mounted has the layer that absorbs water, it has the plastic-aluminum layer to absorb water layer externally mounted, pressure sensor is installed to plastic-aluminum layer outer wall one side, this flexible package lithium ion battery not only installs the structure that absorbs water, avoids moisture to damage the main part, influences the use, is provided with temperature-sensing device moreover, and when the high temperature, automatic shutdown is provided with pressure-sensing device simultaneously.

Description

Soft package lithium ion battery

Technical Field

The utility model relates to a lithium ion battery technical field specifically is a soft package lithium ion battery.

Background

A battery refers to a device that converts chemical energy into electrical energy in a portion of the space of a cup, tank, or other container or composite container that holds an electrolyte solution and metal electrodes to produce an electrical current. The battery is used as an energy source, so that the current which has stable voltage and stable current and is stably supplied for a long time and slightly influenced by the outside can be obtained, the battery is simple in structure, convenient to carry, simple and easy to operate, convenient and easy to charge and discharge, free of the influence of the outside climate and temperature, stable and reliable in performance, plays a great role in various aspects of modern social life, and is more and more concerned by people along with the rapid development of the IT industry, such as smart phones, wearable equipment and the like, wherein the requirement on the battery is higher and higher. Wherein, flexible package lithium ion battery with its design variety, miniaturization and diversified, has extensively been arranged in wearing equipment, for example intelligent bracelet, intelligent wrist-watch etc. but present flexible package lithium ion battery does not generally absorb water the structure, and moisture damages the main part easily, influences life, does not have temperature-sensing device moreover, and the high temperature causes the accident easily, and the plastic-aluminum layer is heated the bulge deformation easily simultaneously, influences the use.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.

The present invention has been made in view of the above and/or other problems that exist in the existing soft-packaged lithium ion batteries.

Therefore, the utility model aims at providing a soft-packing lithium ion battery not only installs the structure that absorbs water, avoids moisture to damage the main part, influences the use, is provided with temperature-sensing device moreover, and when the high temperature, automatic shutdown is provided with pressure-sensing device simultaneously, avoids the plastic-aluminum layer to swell and produces deformation.

For solving the technical problem, according to the utility model discloses an aspect, the utility model provides a following technical scheme:

a flexible packaged lithium ion battery, comprising: main part, diaphragm, layer and plastic-aluminum layer absorb water, two utmost point ears are installed on main part inner wall top, just the utmost point ear top runs through the main part top and extends to outside, the negative pole is installed to the main part outer wall, negative pole externally mounted has the diaphragm, the micropore has been seted up on the diaphragm, the colloid is installed to the micropore top, diaphragm externally mounted has the positive pole, positive externally mounted has the layer that absorbs water, it has the plastic-aluminum layer to absorb water layer externally mounted, pressure sensor is installed to plastic-aluminum layer outer wall one side, the bleed valve is installed to the plastic-aluminum layer bottom, bleed valve electric connection has pressure sensor.

As an optimized scheme of the flexible package lithium ion battery of the present invention, wherein: the connection part of the lug and the main body is provided with an insulating ring which is made of highland barley paper.

As an optimized scheme of the flexible package lithium ion battery of the present invention, wherein: the waterproof layer is arranged outside the water absorbing layer and made of electronic sealant.

As an optimized scheme of the flexible package lithium ion battery of the present invention, wherein: and a heat absorption layer is arranged outside the aluminum-plastic layer and is made of black chromium.

Compared with the prior art: when the lithium ion battery is used, a complete loop is formed by the anode and the cathode to provide charging and discharging functions, when in charging, lithium ions enter the anode from the cathode through micropores on the diaphragm, when in discharging, the lithium ions enter the cathode from the anode through the micropores, the temperature of the main body is sensed through the colloid, when the temperature is overhigh, the colloid is solidified to block the micropores, so that the lithium ions cannot penetrate through the micropores, the charging and discharging work is stopped, when the temperature is reduced, the colloid melts back to the initial position, the lithium ions penetrate through the micropores to complete the charging and discharging work, the water absorption layer absorbs the water to prevent the main body from being corroded by the water, the service life is influenced, the inner part is protected by the aluminum-plastic layer to prevent damage, whether the aluminum-plastic layer generates deformation is sensed by the pressure sensor, the aluminum-plastic layer is prevented from bulging and deforming by the air, deflating the aluminum plastic layer, installing a water absorption structure to avoid water damage to the main body and affecting use, and setting a temperature sensing device to automatically stop working when the temperature is too high, and setting a pressure sensing device to avoid deformation of the aluminum plastic layer.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor. Wherein:

fig. 1 is a cross-sectional view of the present invention;

fig. 2 is a schematic view of the separator of the present invention.

In the figure: 100 main part, 110 pole ear, 120 insulating ring, 130 negative pole, 140 positive pole, 200 diaphragm, 210 micropore, 220 colloid, 300 water absorption layer, 310 waterproof layer, 400 plastic-aluminum layer, 410 pressure sensor, 420 bleed valve, 430 heat absorption layer.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways than those specifically described herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Next, the present invention will be described in detail with reference to the schematic drawings, and in the detailed description of the embodiments of the present invention, for convenience of explanation, the sectional view showing the device structure will not be enlarged partially according to the general scale, and the schematic drawings are only examples, and should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

The utility model provides a soft-packing lithium ion battery not only installs the structure that absorbs water, avoids moisture to damage the main part, and the influence is used, is provided with temperature-sensing device moreover, and when the temperature was too high, automatic shutdown was provided with pressure-sensing device simultaneously, avoids the plastic-aluminum layer swell to produce deformation, please refer to figure 1 and figure 2, include: a main body 100, a diaphragm 200, a water absorption layer 300 and an aluminum plastic layer 400;

referring to fig. 1 and 2 again, two tabs 110 are installed on the top end of the inner wall of the main body 100, the top end of each tab 110 penetrates through the top end of the main body 100 and extends to the outside, the outer wall of the main body 100 is provided with a negative electrode 130, the outside of the negative electrode 130 is provided with a diaphragm 200, the diaphragm 200 is provided with a micropore 210, a colloid 220 is installed above the micropore 210, the outside of the diaphragm 200 is provided with a positive electrode 140, the outside of the positive electrode 140 is provided with a water absorption layer 300, the outside of the water absorption layer 300 is provided with an aluminum-plastic layer 400, one side of the outer wall of the aluminum-plastic layer 400 is provided with a pressure sensor 410, the bottom end of the aluminum-plastic layer 400 is provided with a deflation valve 420, the deflation valve 420 is electrically connected with the pressure sensor 410, specifically, the top end, the external bonding of negative pole 130 is connected with diaphragm 200, micropore 210 has been seted up on diaphragm 200, the bonding of micropore 210 top is connected with colloid 220, diaphragm 200 external bonding is connected with anodal 140, anodal 140 external bonding is connected with water absorption layer 300, water absorption layer 300 external bonding is connected with aluminium-plastic layer 400, aluminium-plastic layer 400 outer wall one side bonding is connected with pressure sensor 410, aluminium-plastic layer 400 bottom intercommunication has bleed valve 420, bleed valve 420 electric connection has pressure sensor 410, main part 100 is used for providing the space of holding electrolyte and utmost point ear 110, utmost point ear 110 is used for attracting anodal 140 and negative pole 130 out, diaphragm 200 is used for providing the passageway that anodal 140 and negative pole 130 are connected, micropore 210 is used for providing the passageway that the lithium ion passes through, colloid 220 is used for feeling the temperature and takes place the opening and shutting of deformation control micropore 210, anodal 140 is used for gathering the, the negative electrode 130 is used for gathering negative charges, the water absorption layer 300 is used for absorbing water to prevent the water from corroding the main body 100, the aluminum plastic layer 400 is used for protecting the main body 100, the pressure sensor 410 is used for sensing the deformation of the aluminum plastic layer 400, and the air release valve 420 is used for controlling the opening and closing of the aluminum plastic layer 400 and the outside according to signals of the pressure sensor 410.

When the lithium ion battery is used specifically, a complete loop is formed by the anode 140 and the cathode 130 to provide charging and discharging functions, when charging is performed, lithium ions enter the anode 140 from the cathode 130 through the micropores 210 on the diaphragm 200, when discharging is performed, lithium ions enter the cathode 130 from the anode 140 through the micropores 210, the temperature of the main body 100 is sensed through the colloid 220, when the temperature is too high, the colloid 220 is solidified to block the micropores 210, so that the lithium ions cannot penetrate through the micropores 210, the charging and discharging work is stopped, when the temperature is reduced, the colloid 220 is melted back to the initial position, the lithium ions penetrate through the micropores 210 to complete the charging and discharging work, the water absorption layer 300 absorbs water to prevent the water from corroding the main body 100 and affecting the service life, the inside of the aluminum-plastic layer 400 is protected from being damaged, the pressure sensor 410 senses whether the layer 400 deforms, and the deflation valve 420 prevents the aluminum-plastic layer 400, when the pressure sensor 410 senses the value change, the air release valve 420 is controlled to be opened to release air to the aluminum-plastic layer 400.

Referring to fig. 1 and 2 again, an insulating ring 120 is installed at the joint of the tab 110 and the main body 100, the insulating ring 120 is made of highland barley paper, specifically, the joint of the tab 110 and the main body 100 is bonded with the insulating ring 120, the insulating ring 120 is made of highland barley paper, and the insulating layer is used for preventing the contact of the positive electrode 130 and the negative electrode 130 from short circuit.

Referring to fig. 1 and 2 again, a waterproof layer 310 is installed outside the water absorbing layer 300, the waterproof layer 310 is made of an electronic sealant material, specifically, the waterproof layer 310 is bonded and connected to the outside of the water absorbing layer 300, the waterproof layer 310 is made of an electronic sealant material, and the waterproof layer 310 is used for preventing moisture from corroding the inside of the main body 100.

Referring to fig. 1 and 2 again, a heat absorbing layer 430 is installed outside the aluminum plastic layer 400, the heat absorbing layer 430 is made of black chromium, specifically, the heat absorbing layer 430 is bonded and connected to the outside of the aluminum plastic layer 400, the heat absorbing layer 430 is made of black chromium, and the heat absorbing layer 430 is used for absorbing heat generated by the main body 100 during operation, so as to prevent the heat from continuously transferring and affecting external devices.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the non-exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (4)

1. A flexible package lithium ion battery, comprising: the battery comprises a main body (100), a diaphragm (200), a water absorption layer (300) and an aluminum plastic layer (400), wherein two tabs (110) are arranged at the top end of the inner wall of the main body (100), the top end of the tab (110) penetrates through the top end of the main body (100) and extends to the outside, the outer wall of the main body (100) is provided with a negative pole (130), a diaphragm (200) is arranged outside the negative electrode (130), micropores (210) are arranged on the diaphragm (200), colloid (220) is arranged above the micropores (210), the positive electrode (140) is arranged outside the diaphragm (200), the water absorbing layer (300) is arranged outside the anode (140), the aluminum plastic layer (400) is arranged outside the water absorbing layer (300), pressure sensor (410) are installed to plastic-aluminum layer (400) outer wall one side, bleed valve (420) are installed to plastic-aluminum layer (400) bottom, bleed valve (420) electric connection has pressure sensor (410).

2. The soft-package lithium ion battery according to claim 1, wherein an insulating ring (120) is installed at the joint of the tab (110) and the main body (100), and the insulating ring (120) is made of highland barley paper.

3. The flexibly packaged lithium ion battery according to claim 1, wherein a waterproof layer (310) is installed outside the water absorbing layer (300), and the waterproof layer (310) is made of an electronic sealant material.

4. The flexibly packaged lithium ion battery according to claim 1, wherein a heat absorption layer (430) is mounted outside the aluminum plastic layer (400), and the heat absorption layer (430) is made of black chromium.

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