CN214428714U

CN214428714U - Polymer lithium ion battery with protective structure

Info

Publication number: CN214428714U
Application number: CN202120794804.9U
Authority: CN
Inventors: 郭首臣
Original assignee: Dongguan Youfang New Energy Technology Co ltd
Current assignee: Dongguan Youfang New Energy Technology Co ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2021-10-19
Anticipated expiration: 2031-04-16

Abstract

The utility model discloses a polymer lithium ion battery with protective structure, including installation shell, visor, polymerization lithium ion battery shell and fixed block, the inside both sides of installation shell all fixed mounting have six reset spring groups, and reset spring goes up fixed mounting has the PP grip block, the inside base fixed mounting that has polymerization lithium ion battery shell through of installation shell, the top of polymerization lithium ion battery shell fixed mounting has positive electrode piece and negative electrode piece in proper order, the visor has been placed at the top of installation shell, the positive fixed mounting of visor bottom has the flexible glue spacing block, install fixed briquetting and the right angle kelly that each other is the cooperation to use through rotating the axostylus axostyle respectively on the fixed block. The utility model discloses an installation shell, reset spring, PP grip block and flexible glue spacer block have realized that the polymerization lithium ion battery can protect, avoid appearing the condition of layering, have improved polymerization lithium ion battery's life.

Description

Polymer lithium ion battery with protective structure

Technical Field

The utility model relates to a polymer lithium ion battery technical field specifically is a polymer lithium ion battery with protective structure.

Background

The lithium polymer battery, also called polymer lithium battery, poly lithium battery, is a kind of lithium ion battery, the lithium polymer battery usually increases the discharging current by several same parallel sub battery cores, or increases the available voltage by several battery packs connected in series, the lithium polymer battery is often called lithium battery or lithium ion battery for short, but not completely the same in strict sense, the main difference is that the electrolyte uses liquid organic solution rather than jelly or solid polymer, the liquid lithium ion battery uses liquid electrolyte, the polymer lithium ion battery uses solid polymer electrolyte to replace, and the polymer lithium ion battery has the advantages of flexible shape and size, fast charging speed, good cycle characteristic, high working voltage, high specific energy, large capacity, environmental protection, etc. the polymer lithium ion battery has wide application in the market, when in use, the polymer lithium ion battery needs to use the protection structure to protect, there is a need for a polymer lithium ion battery with a protective structure, but the existing polymer lithium ion battery with a protective structure has many problems or defects:

1. most of the traditional polymer lithium ion batteries do not have a protection structure in the use process, so that the battery efficiency is reduced due to layering of the battery caused by no protection pressure of a shell in the use process of the battery, and meanwhile, the electrode plates are easy to collide and damage due to external impact, so that the service life of the lithium ion battery is shortened;

2. in addition, the heat-resistant edge washing performance of the existing polymer lithium ion battery is low in the use process, and if the external temperature is too high, the working environment of the polymer lithium ion battery is deteriorated, so that plastic accessories are melted, and the practicability of the polymer lithium ion battery is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a polymer lithium ion battery with protective structure to the polymer lithium ion battery who provides in solving above-mentioned background does not possess protective structure's problem.

In order to achieve the above object, the utility model provides a following technical scheme: a polymer lithium ion battery with a protection structure comprises an installation shell, a protective cover, a polymer lithium ion battery shell and a fixed block, wherein a graphite high temperature resistant layer and a silicon cotton heat insulation layer which are matched for use are fixedly installed on the periphery of the interior of the installation shell in sequence, a plant fiber insulation layer is fixedly installed on the periphery of the interior of the installation shell, six groups of reset springs are fixedly installed on the two sides of the interior of the installation shell, a PP clamping plate is fixedly installed on each reset spring, the polymer lithium ion battery shell is fixedly installed in the interior of the installation shell through a base, a PC insulation pad which is matched for use is arranged at the bottom of the base, an anode aluminum foil, a polymer diaphragm and a cathode copper foil are fixedly installed in sequence in the interior of the polymer lithium ion battery shell, a positive electrode plate and a negative electrode plate are fixedly installed at the top of the polymer lithium ion battery shell in sequence, the protective cover is placed at the top of the installation shell, a soft rubber isolation block is fixedly installed in the center of the bottom of the protective cover, fixed blocks are fixedly installed at the tops of two sides of the installation shell, and a fixed pressing block and a right-angle clamping rod which are matched with each other for use are respectively installed on the fixed blocks in a rotating mode through rotating shaft rods.

Preferably, the front and the back of the top of the protection cover are provided with heat dissipation holes used in cooperation.

Preferably, both sides of the top of the protection cover are fixedly provided with connecting sockets matched with the positive electrode plate and the negative electrode plate for use.

Preferably, the two ends of the top of the protection cover are fixedly provided with clamping blocks matched with the right-angle clamping rods for use, and the bottom of the soft rubber isolation block is provided with a spongy cushion matched with the shell of the lithium ion polymer battery for use.

Preferably, a graphite compound and lithium dioxide which are used in a matched manner are respectively fixedly arranged between the negative electrode copper foil and the polymer diaphragm and between the positive electrode aluminum foil and the polymer diaphragm.

Compared with the prior art, the utility model discloses an innovation point effect is: the polymer lithium ion battery with the protection structure has a reasonable structure and has the following advantages:

(1) the mounting shell, the reset spring, the PP clamping plate and the soft rubber isolating block are matched for use, so that the polymerized lithium ion battery shell can be protected during use, the polymerized lithium ion battery shell is stressed, the internal layering caused by a long-term high electric quantity state during use of the polymerized lithium ion battery shell is avoided, the condition that the service life is shortened and the efficiency is insufficient is avoided, meanwhile, the condition that a positive electrode plate and a negative electrode plate are damaged due to collision of external impact force is also prevented, and the use usability of the polymerized lithium ion battery shell is improved;

(2) through the matching use of the graphite high-temperature resistant layer, the silicon cotton heat insulation layer, the plant fiber insulation layer and the PC insulation pad, the polymer lithium ion battery shell can be subjected to heat insulation and insulation measures in the using process, the condition that the plastic component on the polymer lithium ion battery shell is melted and cannot be used due to the fact that the external temperature is conducted to the surface of the polymer lithium ion battery shell along the installation shell is avoided, and the use safety of the polymer lithium ion battery is improved;

(3) through the cooperation use between fixed block, rotation axostylus axostyle, fixed briquetting and the right angle kelly, increased the fastness that installation shell and visor are connected, thereby prevent that installation shell and visor from appearing not hard up in the use and leading to coming off and having influenced the use of polymerization lithium ion battery shell, the staff of being convenient for simultaneously carries out quick assembly disassembly to installation shell and visor, has improved polymerization lithium ion battery's profitability.

Drawings

Fig. 1 is a schematic front view of the three-dimensional structure of the present invention;

fig. 2 is a schematic front view of the cross-sectional structure of the present invention;

fig. 3 is a first front view structural diagram of the present invention;

fig. 4 is a second front view structural diagram of the present invention.

In the figure: 1. installing a shell; 101. a graphite high temperature resistant layer; 102. a silicon cotton heat insulation layer; 103. a plant fiber insulation layer; 104. a return spring; 105. a PP clamping plate; 2. a protective cover; 201. heat dissipation holes; 202. a clamping block; 203. a soft rubber isolation block; 204. a sponge cushion; 205. a connecting socket; 3. a polymeric lithium ion battery housing; 301. a graphite compound; 302. a negative copper foil; 303. a polymer separator; 304. a positive aluminum foil; 305. lithium dioxide; 306. a positive electrode plate; 307. a negative electrode plate; 308. a base; 309. a PC insulation pad; 4. a fixed block; 401. rotating the shaft lever; 402. fixing a pressing block; 403. and a right-angle clamping rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only 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 work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides an embodiment: a polymer lithium ion battery with a protective structure comprises an installation shell 1, a protective cover 2, a polymer lithium ion battery shell 3 and a fixed block 4, wherein a graphite high-temperature resistant layer 101 and a silicon cotton heat insulation layer 102 which are matched with each other are sequentially and fixedly arranged on the periphery inside the installation shell 1, a plant fiber insulation layer 103 is fixedly arranged on the periphery of the inner wall of the installation shell 1, through the matching use of the graphite high-temperature resistant layer 101, the silicon wool heat insulation layer 102, the plant fiber insulation layer 103 and the PC insulation pad 309, in the using process of the polymer lithium ion battery shell 3, heat insulation and insulation measures can be carried out, the external temperature is prevented from being conducted to the surface of the polymer lithium ion battery shell 3 along the installation shell 1, therefore, the situation that the plastic component on the polymerized lithium ion battery shell 3 is melted and cannot be used is caused, and the use safety of the polymerized lithium ion battery is improved;

specifically, six groups of reset springs 104 are fixedly mounted on two sides inside the mounting shell 1, a PP clamping plate 105 is fixedly mounted on the reset springs 104, and the mounting shell 1, the reset springs 104 and a soft rubber isolation block 203 of the PP clamping plate 105 are matched for use, so that the polymerized lithium ion battery shell 3 can be protected during use, the polymerized lithium ion battery shell 3 is pressurized, the internal layering caused by a long-term high-power state during use of the polymerized lithium ion battery shell 3 is avoided, the occurrence of a condition that the service life is reduced and the efficiency is insufficient is avoided, the occurrence of a condition that the positive electrode plate 306 and the negative electrode plate 307 are collided together due to external impact force and are damaged is also avoided, and the use usability of the polymerized lithium ion battery shell 3 is improved;

specifically, a polymeric lithium ion battery shell 3 is fixedly mounted inside the mounting shell 1 through a base 308, a PC insulating pad 309 used in cooperation is arranged at the bottom of the base 308, a positive aluminum foil 304, a polymer diaphragm 303 and a negative copper foil 302 are fixedly mounted inside the polymeric lithium ion battery shell 3 in sequence, a graphite compound 301 and lithium dioxide 305 used in cooperation are fixedly mounted between the negative copper foil 302 and the polymer diaphragm 303 and between the positive aluminum foil 304 and the polymer diaphragm 303 respectively, and a positive electrode plate 306 and a negative electrode plate 307 are fixedly mounted at the top of the polymeric lithium ion battery shell 3 in sequence;

specifically, a protective cover 2 is placed on the top of an installation shell 1, a soft rubber isolation block 203 is fixedly installed in the center of the bottom of the protective cover 2, heat dissipation holes 201 matched with the protective cover 2 are formed in the front and the back of the top of the protective cover 2, connection sockets 205 matched with a positive electrode plate 306 and a negative electrode plate 307 are fixedly installed on two sides of the top of the protective cover 2, fixture blocks 202 matched with right-angle fixture rods 403 are fixedly installed at two ends of the top of the protective cover 2, and a sponge pad 204 matched with a polymerized lithium ion battery shell 3 is arranged at the bottom of the soft rubber isolation block 203;

it is specific, the top of installation shell 1 both sides is fixed mounting all has fixed block 4, it installs each other to rotate respectively through rotating shaft rod 401 on the fixed block 4 and to cooperate the fixed briquetting 402 and the right angle kelly 403 that use, cooperation through fixed block 4 and rotation shaft rod 401 and fixed briquetting 402 and between the right angle kelly 403 is used, the fastness that installation shell 1 and visor 2 are connected has been increased, thereby prevent that installation shell 1 and visor 2 from appearing becoming flexible in the use and leading to droing and having influenced the use of polymerization lithium ion battery shell 3, the staff of being convenient for simultaneously carries out quick assembly disassembly to installation shell 1 and visor 2, the profitability of polymerization lithium ion battery has been improved.

The working principle is as follows: when in use, firstly, the polymeric lithium ion battery shell 3 is placed in the installation shell 1, the PP clamping plate 105 is contacted with the surface of the polymeric lithium ion battery shell 3 through the elasticity of the return spring 104, the pressure is increased, the polymeric lithium ion battery shell 3 is prevented from being internally layered due to a high electric quantity state in the use process, the efficiency is reduced, and the service life is reduced, the external temperature can be isolated to a certain extent when the polymeric lithium ion battery shell 3 is used through the matching use of the graphite high temperature resistant layer 101 and the silicon cotton heat insulation layer 102 which are arranged in the installation shell 1, the plant fiber insulation layer 103 and the PC insulation pad 309, the external high temperature is prevented from being conducted to the polymeric lithium ion battery shell 3 by the installation shell 1, and the plastic fittings on the surface are melted due to the overhigh surface operation temperature of the polymeric lithium ion battery shell 3, when the protective cover 2 needs to be taken down, the fixing pressing block 402 is rotated firstly, and then the right-angle clamping rod 403 is rotated down from the clamping block 202, so that the operation is simple, the connection firmness of the installation shell 1 and the protective cover 2 is increased, and the practicability of the polymerized lithium ion battery shell 3 is improved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a polymer lithium ion battery with protective structure, includes installation shell (1), visor (2), polymerization lithium ion battery shell (3) and fixed block (4), its characterized in that: the graphite high-temperature resistant layer (101) and the silicon cotton heat insulation layer (102) which are matched for use are fixedly installed on the periphery of the inner wall of the installation shell (1) in sequence, the plant fiber insulation layer (103) is fixedly installed on the periphery of the inner wall of the installation shell (1), six groups of reset springs (104) are fixedly installed on two sides of the inner portion of the installation shell (1), a PP clamping plate (105) is fixedly installed on each reset spring (104), a polymer lithium ion battery shell (3) is fixedly installed in the installation shell (1) through a base (308), a PC insulation pad (309) which is matched for use is arranged at the bottom of the base (308), a positive aluminum foil (304), a polymer diaphragm (303) and a negative copper foil (302) are fixedly installed in sequence in the polymer lithium ion battery shell (3), a positive electrode plate (306) and a negative electrode plate (307) are fixedly installed in sequence at the top of the polymer lithium ion battery shell (3), protective cover (2) have been placed at the top of installation shell (1), fixed mounting has flexible glue spacing block (203) in the middle of protective cover (2) bottom, the top of installation shell (1) both sides is fixed mounting all has fixed block (4), install respectively through rotating axostylus axostyle (401) on fixed block (4) and rotate fixed briquetting (402) and right angle kelly (403) that each other is the cooperation and uses.

2. The polymer lithium ion battery with the protective structure according to claim 1, wherein: the front and the back of the top of the protective cover (2) are provided with heat dissipation holes (201) which are matched for use.

3. The polymer lithium ion battery with the protective structure according to claim 1, wherein: and connecting sockets (205) matched with the positive electrode plate (306) and the negative electrode plate (307) for use are fixedly arranged on two sides of the top of the protective cover (2).

4. The polymer lithium ion battery with the protective structure according to claim 1, wherein: fixture blocks (202) matched with the right-angle clamping rods (403) for use are fixedly mounted at two ends of the top of the protective cover (2), and a sponge cushion (204) matched with the polymer lithium ion battery shell (3) for use is arranged at the bottom of the soft rubber isolating block (203).

5. The polymer lithium ion battery with the protective structure according to claim 1, wherein: graphite compounds (301) and lithium dioxide (305) which are matched with each other are respectively fixedly arranged between the negative copper foil (302) and the polymer diaphragm (303) and between the positive aluminum foil (304) and the polymer diaphragm (303).