CN212676328U

CN212676328U - Lithium polymer rechargeable battery

Info

Publication number: CN212676328U
Application number: CN202021071077.5U
Authority: CN
Inventors: 陈伟成
Original assignee: Dongguan Yanke New Energy Co ltd
Current assignee: Dongguan Yanke New Energy Co ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2021-03-09
Anticipated expiration: 2030-06-11

Abstract

The utility model discloses a lithium polymer rechargeable battery, including top casing and bottom casing, top casing bottom fixedly connected with top spring of moving away to avoid possible earthquakes, bottom casing top fixedly connected with bottom spring of moving away to avoid possible earthquakes, lithium polymer battery outer wall fixedly connected with protection adventitia, puncture layer bottom fixedly connected with barrier film is prevented at the top, puncture layer is prevented to barrier film bottom fixedly connected with bottom, puncture layer bottom fixedly connected with negative pole copper foil is prevented to the bottom, negative pole copper foil bottom fixedly connected with electrolytic bath. The utility model discloses in, through at top casing bottom fixed connection top spring of moving away to avoid possible earthquakes, bottom casing top fixed connection bottom spring of moving away to avoid possible earthquakes, fixed connection lithium polymer battery between top spring of moving away to avoid possible earthquakes and the bottom spring of moving away to avoid possible earthquakes, when the charger drops in the use, through top spring of moving away to avoid possible earthquakes and bottom spring of moving away to avoid possible earthquakes to protect lithium polymer battery, prevent the battery because the short circuit problem that drops and produce.

Description

Lithium polymer rechargeable battery

Technical Field

The utility model belongs to the technical field of the lithium cell, specifically be a lithium polymer rechargeable battery.

Background

The lithium polymer battery is mainly composed of a positive electrode, a negative electrode, separator paper, and the like. In the currently developed lithium polymer batteries, the polymer materials are mainly applied to the positive electrode and the electrolyte. The material of the positive electrode includes a conductive polymer, an organic sulfur compound, or an inorganic compound used in a general lithium ion secondary battery. The electrolyte may be a solid or colloidal polymer electrolyte, or an organic electrolyte negative electrode typically employs a strong metal or a strong intercarbon compound. Compared with the lithium ion batteries on the market, the lithium polymer batteries have a great development space in the aspects of shape, charge and discharge, reliability, environmental problems and the like. In terms of shape, the E polymer battery has the advantages of thinness, arbitrary area, arbitrary shape and the like, so that the E polymer battery can be made into a battery with any shape and capacity according to the requirement of products;

all lithium ion batteries, whether current or of the years, include: the polymer lithium ion battery, the lithium iron phosphate battery and the like are extremely afraid of the situations of internal short circuit, external short circuit and overcharge of the battery, because the chemical property of lithium is very active and easy to burn, when the battery discharges and charges, the temperature inside the battery can be continuously raised, gas generated in the activation process expands, the internal pressure of the battery is increased, the pressure reaches a certain degree, if the shell has a flaw, the shell can be broken, and liquid leakage, fire and even explosion are caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the above-mentioned problems, a lithium polymer rechargeable battery is provided.

The utility model adopts the technical scheme as follows: a lithium polymer rechargeable battery comprises a top shell and a bottom shell, wherein the bottom of the top shell is fixedly connected with a top shock-absorbing spring, the top of the bottom shell is fixedly connected with a bottom shock-absorbing spring, a lithium polymer battery is fixedly connected between the top shock-absorbing spring and the bottom shock-absorbing spring, the bottom of the left side of the top shell and the top of the left side of the bottom shell are fixedly connected with USB charging interfaces, the outer wall of the lithium polymer battery is fixedly connected with a protective outer membrane, the interior of the lithium polymer battery is fixedly connected with a positive aluminum foil, the bottom of the positive aluminum foil is fixedly connected with a top puncture-proof layer, the bottom of the top puncture-proof layer is fixedly connected with an isolating membrane, the bottom of the isolating membrane is fixedly connected with a bottom puncture-proof layer, the bottom of the bottom puncture-proof layer is fixedly connected with a negative copper foil, and the bottom of the negative copper foil is fixedly connected with an electrolytic cell.

In a preferred embodiment, the top of the top shell and the top of the bottom shell are both provided with external threads, and nuts are connected through the threads, so that the top shell and the bottom shell are convenient to mount and dismount.

In a preferred embodiment, the protective outer film is an aluminum plastic film.

In a preferred embodiment, the lithium polymer battery has a voltage of 3.7V.

In a preferred embodiment, the top of the top casing and the bottom of the bottom casing are both provided with heat dissipation holes, and the lithium polymer battery is dissipated heat through the heat dissipation holes, so that the bulge or fire caused by overheating is prevented.

In a preferred embodiment, the lithium polymer battery is most effective in charging at 23 ℃.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, through at top casing bottom fixed connection top spring of moving away to avoid possible earthquakes, bottom casing top fixed connection bottom spring of moving away to avoid possible earthquakes, fixed connection lithium polymer battery between top spring of moving away to avoid possible earthquakes and the bottom spring of moving away to avoid possible earthquakes, when the charger drops in the use, through top spring of moving away to avoid possible earthquakes and bottom spring of moving away to avoid possible earthquakes to protect lithium polymer battery, prevent the battery because the short circuit problem that drops and produce.

2. The utility model discloses in, through preventing the puncture layer at anodal aluminium foil bottom fixed connection top, the puncture layer is prevented to barrier film bottom fixed connection bottom, prevents the puncture layer through preventing puncture layer and bottom at barrier film upper surface and lower surface fixed connection top respectively, prevents the short circuit that leads to because the positive negative pole that the foreign object puncture leads to meets mutually.

Drawings

FIG. 1 is a schematic diagram of a lithium polymer rechargeable battery according to the present invention;

fig. 2 is a cross-sectional view of a lithium polymer battery in a lithium polymer rechargeable battery according to the present invention;

fig. 3 is a side view of a lithium polymer rechargeable battery according to the present invention.

The labels in the figure are: 1-top shell, 2-bottom shell, 3-top shock absorbing spring, 4-lithium polymer battery, 5-heat dissipation hole, 6-USB charging interface, 7-protective outer membrane, 8-anode aluminum foil, 9-top puncture-proof layer, 10-isolation membrane, 11-cathode copper foil, 12-electrolyte, 13-bottom puncture-proof layer and 14-bottom shock absorbing spring.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, a lithium polymer rechargeable battery comprises a top case 1 and a bottom case 2, wherein the top of the top case 1 and the top of the bottom case 2 are both provided with external threads and are connected with nuts through threads for convenient assembly and disassembly, the bottom of the top case 1 is fixedly connected with a top damper spring 3, the top of the top case 1 and the bottom of the bottom case 2 are both provided with heat dissipation holes 5, the lithium polymer battery is dissipated through the heat dissipation holes 5 to prevent bulging or ignition due to overheating, the top of the bottom case 2 is fixedly connected with a bottom damper spring 14, a lithium polymer battery 4 is fixedly connected between the top damper spring 3 and the bottom damper spring 14, the lithium polymer battery 4 has the best charging effect at 23 ℃, the voltage of the lithium polymer battery 4 is 3.7V, the bottom of the left side of the top case 1 and the top of the left side of the bottom case 2 are fixedly, 4 outer wall fixedly connected with protection adventitia 7 of lithium polymer battery, protection adventitia 7 is the plastic-aluminum membrane, the anodal aluminium foil 8 of the inside fixedly connected with of lithium polymer battery 4, puncture layer 9 is prevented at anodal aluminium foil 8 bottom fixedly connected with top, puncture layer 9 bottom fixedly connected with barrier film 10 is prevented at the top, puncture layer 13 is prevented to barrier film 10 bottom fixedly connected with bottom, puncture layer 13 bottom fixedly connected with negative pole copper foil 11 is prevented to the bottom, 11 bottom fixedly connected with electrolytic bath 12 of negative pole copper foil.

The working principle is as follows: evenly paint anodal material on anodal aluminium foil 8, evenly paint negative pole material on negative pole copper foil 11, charge the interface 6 through the USB and charge the battery, when the charger drops in the use, protect lithium polymer battery 4 through top damping spring 3 and bottom damping spring 14, prevent the short circuit problem that the battery produced because of dropping, through fixed connection barrier film 10 in the middle of anodal aluminium foil 8 and negative pole copper foil 11, make anodal and negative pole separate, prevent the short circuit, through fixed connection top puncture-proof layer 9 and bottom puncture-proof layer 13 respectively at barrier film 10 upper surface and lower surface, prevent the short circuit that the positive negative pole that leads to because the foreign object puncture meets the lead to mutually.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A lithium polymer rechargeable battery comprising a top case (1) and a bottom case (2), characterized in that: the bottom of the top shell (1) is fixedly connected with a top shock-absorbing spring (3), the top of the bottom shell (2) is fixedly connected with a bottom shock-absorbing spring (14), a lithium polymer battery (4) is fixedly connected between the top shock-absorbing spring (3) and the bottom shock-absorbing spring (14), the left bottom of the top shell (1) and the left top of the bottom shell (2) are fixedly connected with a USB charging interface (6), the outer wall of the lithium polymer battery (4) is fixedly connected with a protective outer membrane (7), the inside of the lithium polymer battery (4) is fixedly connected with an anode aluminum foil (8), the bottom of the anode aluminum foil (8) is fixedly connected with a top puncture-proof layer (9), the bottom of the top puncture-proof layer (9) is fixedly connected with an isolation membrane (10), and the bottom of the isolation membrane (10) is fixedly connected with a bottom puncture, the bottom of the bottom puncture-proof layer (13) is fixedly connected with a negative copper foil (11), and the bottom of the negative copper foil (11) is fixedly connected with an electrolytic cell (12).

2. A lithium polymer rechargeable battery according to claim 1, wherein: the top of the top shell (1) and the top of the bottom shell (2) are both provided with external threads, and nuts are connected through threads.

3. A lithium polymer rechargeable battery according to claim 1, wherein: the protective outer film (7) is an aluminum plastic film.

4. A lithium polymer rechargeable battery according to claim 1, wherein: the voltage of the lithium polymer battery (4) is 3.7V.

5. A lithium polymer rechargeable battery according to claim 1, wherein: the top of the top shell (1) and the bottom of the bottom shell (2) are both provided with heat dissipation holes (5).