CN214099674U

CN214099674U - Lithium manganate battery capable of reducing high-temperature attenuation

Info

Publication number: CN214099674U
Application number: CN202121225848.6U
Authority: CN
Inventors: 李永起; 郑好博; 胡朝锋; 赵超
Original assignee: Xinxiang Hongli Power Technology Co ltd
Current assignee: Xinxiang Hongli Power Technology Co ltd
Priority date: 2021-06-03
Filing date: 2021-06-03
Publication date: 2021-08-31
Anticipated expiration: 2031-06-03

Abstract

The utility model discloses a reduce high temperature decay lithium manganate battery, including main part, fixed block, first cavity and second cavity, the inside one side of main part is provided with the second cavity, the inside opposite side of main part is provided with first cavity, the fixed block is installed on the top of main part, the positive pole is installed to the corner of fixed block top one side, the negative pole is installed to the corner of fixed block top opposite side, the outside of positive pole and negative pole all is provided with seal structure, seal structure is including sealed shell, sealed pad, draw-in groove and fixture block, the inside at fixed block top both sides corner is all evenly installed to the draw-in groove. The utility model discloses a be provided with heat radiation structure, the main part can produce certain heat in the use, and the heat dissipation fin can adsorb the heat through the sieve, exchanges through louvre and outside cold air thereupon, alright dispel the heat to the main part, has realized the device heat dissipation of being convenient for, increases life.

Description

Lithium manganate battery capable of reducing high-temperature attenuation

Technical Field

The utility model relates to the technical field of batteries, specifically a reduce high temperature decay lithium manganate battery.

Background

With the development of science and technology and the continuous development of society, lithium batteries become mainstream, which are batteries using non-aqueous electrolyte solution and taking lithium metal or lithium alloy as positive and negative electrode materials, lithium manganate batteries are batteries using lithium manganate as the positive electrode, the nominal voltage of the lithium manganate is 2.5-4.2V, and the lithium manganate batteries are widely used due to low cost and good safety.

The conventional lithium manganate battery is inconvenient for protecting the positive and negative electrodes of the battery, so that the short circuit is generated due to the conductive action of air when the positive and negative electrodes of the battery are exposed in the air for a long time after the battery is not used for a long time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a reduce high temperature decay lithium manganate battery to provide the problem of being not convenient for protect the positive negative pole of battery in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the lithium manganate battery capable of reducing high-temperature attenuation comprises a main body, a fixing block, a first cavity and a second cavity, wherein the second cavity is arranged on one side inside the main body, the first cavity is arranged on the other side inside the main body, and the fixing block is mounted at the top end of the main body;

a positive electrode is arranged at the corner of one side of the top of the fixed block, a negative electrode is arranged at the corner of the other side of the top of the fixed block, and sealing structures are arranged outside the positive electrode and the negative electrode;

the sealing structure comprises a sealing shell, a sealing gasket, a clamping groove and a clamping block, wherein the clamping groove is formed in two sides of the top of the fixing block, the clamping block is installed in the clamping groove, the sealing shell is installed at the top end of the clamping block, and the sealing gasket is arranged in the sealing shell.

Preferably, the outer diameter of the clamping block is smaller than the inner diameter of the clamping groove, and the clamping groove and the clamping block form a clamping structure.

Preferably, the sealing shells are equal in size and are symmetrically distributed about the central axis of the main body.

Preferably, the inside of main part is provided with protective structure, protective structure includes polyimide nanofiber membrane, polypropylene diaphragm and polyamide diaphragm, the inside at the main part is installed to polyimide nanofiber membrane, one side of polyimide nanofiber membrane is provided with the polypropylene diaphragm, and one side of polypropylene diaphragm is provided with the polyamide diaphragm.

Preferably, the inside of fixed block is provided with heat radiation structure, heat radiation structure includes sieve, radiating fin, heat dissipation chamber and louvre, the sieve is installed in the inside bottom of fixed block, the top of sieve is provided with the heat dissipation chamber, and the inside in heat dissipation chamber evenly installs radiating fin, the top of fixed block evenly is provided with the louvre.

Preferably, the radiating fins are distributed in the radiating cavity at equal intervals, and the radiating fins are all installed on the same horizontal plane.

Preferably, the radiating holes are provided with a plurality of radiating holes which are distributed at equal intervals on the top end inside the fixing block.

Compared with the prior art, the beneficial effects of the utility model are that: the lithium manganate battery with the function of reducing high-temperature attenuation has the advantages of reasonable structure and the following advantages:

(1) the sealing structure is arranged, the sealing shell isolates the anode and the cathode from air, the sealing gasket is attached to the outside of the anode, the sealing performance is improved, the sealing shell is pulled upwards in the using process to drive the clamping block to be separated from the inside of the clamping groove, and then the device can be used, so that the anode and the cathode of the device are prevented from contacting with the air, and the battery bulge caused by short circuit is avoided;

(2) through the arrangement of the heat dissipation structure, the main body can generate certain heat in the use process, the heat can be absorbed by the heat dissipation fins through the sieve plate, and then the heat can be exchanged with external cold air through the heat dissipation holes, so that the heat of the main body can be dissipated, the heat dissipation of the device is facilitated, and the service life of the device is prolonged;

(3) through being provided with protective structure, when the local temperature of battery risees the melting point of polypropylene diaphragm, can lead to the polypropylene diaphragm to produce the fusing and can cause the short circuit, the higher and heat resistance of polyimide nanometer fibre diaphragm and polyamide diaphragm melting point is excellent, can protect the polypropylene diaphragm, prevents that it from producing the fusing, has realized the device to the protection of polypropylene diaphragm.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

fig. 2 is a schematic perspective view of the present invention;

fig. 3 is a schematic view of a partial front sectional structure of the present invention;

fig. 4 is a schematic view of the protective structure section of the present invention;

fig. 5 is a schematic view of the front sectional structure of the fixing block of the present invention.

In the figure: 1. a main body; 2. a positive electrode; 3. a sealing structure; 301. sealing the shell; 302. a gasket; 303. a card slot; 304. a clamping block; 4. a fixed block; 5. a negative electrode; 6. a first cavity; 7. a protective structure; 701. a polyimide nanofiber membrane; 702. a polypropylene diaphragm; 703. a polyamide separator; 8. a second cavity; 9. a heat dissipation structure; 901. a sieve plate; 902. a heat dissipating fin; 903. a heat dissipation cavity; 904. and (4) heat dissipation holes.

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.

Referring to fig. 1-5, the present invention provides an embodiment: a lithium manganate battery capable of reducing high-temperature attenuation comprises a main body 1, a fixing block 4, a first cavity 6 and a second cavity 8, wherein the second cavity 8 is arranged on one side inside the main body 1, the first cavity 6 is arranged on the other side inside the main body 1, and the fixing block 4 is arranged at the top end of the main body 1;

the positive electrode 2 is arranged at the corner of one side of the top of the fixed block 4, the negative electrode 5 is arranged at the corner of the other side of the top of the fixed block 4, and the sealing structures 3 are arranged outside the positive electrode 2 and the negative electrode 5;

the sealing structure 3 comprises a sealing shell 301, a sealing gasket 302, a clamping groove 303 and a clamping block 304, the clamping groove 303 is arranged on two sides of the top of the fixing block 4, the clamping block 304 is arranged in the clamping groove 303, the sealing shell 301 is arranged at the top end of the clamping block 304, the sealing gasket 302 is arranged in the sealing shell 301, the outer diameter of the clamping block 304 is smaller than the inner diameter of the clamping groove 303, the clamping groove 303 and the clamping block 304 form a clamping structure, the disassembly is convenient, the sealing shells 301 are equal in size, and the sealing shells 301 are symmetrically distributed about the central axis of the main body 1 and are convenient to seal;

the sealing shell 301 isolates the anode 2 and the cathode 5 from air, the sealing gasket 302 is attached to the outside of the anode 2 to increase the sealing performance, and the clamping block 304 is driven to be separated from the inside of the clamping groove 303 by pulling the sealing shell 301 upwards in the using process, so that the device can be used;

the protection structure 7 is arranged in the main body 1, the protection structure 7 comprises a polyimide nanofiber membrane 701, a polypropylene membrane 702 and a polyamide membrane 703, the polyimide nanofiber membrane 701 is arranged in the main body 1, the polypropylene membrane 702 is arranged on one side of the polyimide nanofiber membrane 701, and the polyamide membrane 703 is arranged on one side of the polypropylene membrane 702;

when the local temperature of the battery is increased to the melting point of the polypropylene diaphragm 702, the polypropylene diaphragm 702 is fused to cause short circuit, and the polyimide nanofiber diaphragm 701 and the polyamide diaphragm 703 have high melting points and excellent heat resistance and can protect the polypropylene diaphragm 702;

the heat dissipation structure 9 is arranged inside the fixed block 4, the heat dissipation structure 9 comprises a sieve plate 901, heat dissipation fins 902, heat dissipation cavities 903 and heat dissipation holes 904, the sieve plate 901 is installed at the bottom end inside the fixed block 4, the heat dissipation cavities 903 are formed in the top end of the sieve plate 901, the heat dissipation fins 902 are evenly installed inside the heat dissipation cavities 903, the heat dissipation holes 904 are evenly formed in the top end of the fixed block 4, the heat dissipation fins 902 are distributed in the heat dissipation cavities 903 at equal intervals, the heat dissipation fins 902 are all installed on the same horizontal plane, the heat dissipation holes 904 are provided with a plurality of heat dissipation holes 904, and the heat dissipation holes 904 are distributed in the top end inside the fixed block 4 at equal intervals so as to facilitate heat dissipation;

the heat dissipation fins 902 absorb heat generated by the main body 1 in the using process through the sieve plate 901, and then exchange the heat with outside cold air through the heat dissipation holes 904, so that the main body 1 can be cooled, and the sieve plate 901 can prevent dust from entering the top end of the main body 1.

The working principle is as follows: when the device is used, firstly, the sealing shell 301 isolates the anode 2 and the cathode 5 from air, the sealing gasket 302 is attached to the outside of the anode 2 to increase the sealing performance, the sealing shell 301 is pulled upwards in the using process to drive the clamping block 304 to be separated from the inside of the clamping groove 303, and then the device can be used;

then, when the local temperature of the battery is increased to the melting point of the polypropylene diaphragm 702, the polypropylene diaphragm 702 is fused to cause short circuit, and the polyimide nanofiber diaphragm 701 and the polyamide diaphragm 703 have high melting points and excellent heat resistance and can protect the polypropylene diaphragm 702;

finally, the heat dissipation fins 902 absorb heat generated by the main body 1 in the using process through the sieve plate 901, and then exchange with the outside cold air through the heat dissipation holes 904, so that the main body 1 can be cooled, and the sieve plate 901 can prevent dust from entering the top end of the main body 1.

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 reduce high temperature decay lithium manganate battery, includes main part (1), fixed block (4), first cavity (6) and second cavity (8), its characterized in that: a second cavity (8) is arranged on one side inside the main body (1), a first cavity (6) is arranged on the other side inside the main body (1), and a fixed block (4) is installed at the top end of the main body (1);

an anode (2) is arranged at a corner of one side of the top of the fixed block (4), a cathode (5) is arranged at a corner of the other side of the top of the fixed block (4), and sealing structures (3) are arranged outside the anode (2) and the cathode (5);

seal structure (3) are including sealed shell (301), sealed pad (302), draw-in groove (303) and fixture block (304), draw-in groove (303) set up in the both sides at fixed block (4) top, fixture block (304) are all installed to the inside of draw-in groove (303), and the top of fixture block (304) installs sealed shell (301), and the inside of sealed shell (301) all is provided with sealed pad (302).

2. The lithium manganate battery for reducing high temperature decay as set forth in claim 1, wherein: the outer diameter of the clamping block (304) is smaller than the inner diameter of the clamping groove (303), and the clamping groove (303) and the clamping block (304) form a clamping structure.

3. The lithium manganate battery for reducing high temperature decay as set forth in claim 1, wherein: the sizes of the sealing shells (301) are equal, and the sealing shells (301) are symmetrically distributed around the central axis of the main body (1).

4. The lithium manganate battery for reducing high temperature decay as set forth in claim 1, wherein: the inside of main part (1) is provided with protective structure (7), protective structure (7) include polyimide nanofiber membrane (701), polypropylene diaphragm (702) and polyamide diaphragm (703), the inside in main part (1) is installed in polyimide nanofiber membrane (701), one side of polyimide nanofiber membrane (701) is provided with polypropylene diaphragm (702), and one side of polypropylene diaphragm (702) is provided with polyamide diaphragm (703).

5. The lithium manganate battery for reducing high temperature decay as set forth in claim 1, wherein: the inside of fixed block (4) is provided with heat radiation structure (9), heat radiation structure (9) are including sieve (901), radiating fin (902), heat dissipation chamber (903) and louvre (904), the inside bottom in fixed block (4) is installed in sieve (901), the top of sieve (901) is provided with heat dissipation chamber (903), and the inside uniform mounting in heat dissipation chamber (903) has radiating fin (902), the top of fixed block (4) evenly is provided with louvre (904).

6. The lithium manganate battery for reducing high temperature decay as set forth in claim 5, wherein: the radiating fins (902) are distributed in the radiating cavity (903) at equal intervals, and the radiating fins (902) are all installed on the same horizontal plane.

7. The lithium manganate battery for reducing high temperature decay as set forth in claim 5, wherein: the heat dissipation holes (904) are arranged in a plurality of numbers, and the heat dissipation holes (904) are distributed at equal intervals on the top end inside the fixing block (4).