CN212934691U

CN212934691U - Lithium battery with anti-corrosion function

Info

Publication number: CN212934691U
Application number: CN202020734763.XU
Authority: CN
Inventors: 刘南; 倪献聪
Original assignee: Shenzhen Jinbaidi New Energy Co ltd
Current assignee: Shenzhen Jinbaidi New Energy Co ltd
Priority date: 2020-05-07
Filing date: 2020-05-07
Publication date: 2021-04-09
Anticipated expiration: 2030-05-07

Abstract

The utility model discloses a lithium cell with anticorrosion function, including lithium cell total casing, lithium cell casing, anti-corrosion coating, lithium cell inner shell, sealed lid, graphite chock, plate electrode, seal groove, closing plate and storage water tank, the inside one side of storage water tank is equipped with miniature waterproof pump, miniature waterproof pump one end is with the inside intercommunication of storage water tank, the miniature waterproof pump other end is equipped with the liquid cooling pipe, the other end of liquid cooling union coupling miniature waterproof pump passes storage water tank and lithium cell casing and duplex winding in the lithium cell inner shell outside, the inside opposite side of storage water tank is equipped with the circulating pipe, circulating pipe one end extends to inside and with the liquid cooling pipe intercommunication of lithium cell casing. Compared with the prior art, the utility model the advantage lie in: good heat dissipation capability and corrosion resistance.

Description

Lithium battery with anti-corrosion function

Technical Field

The utility model relates to a lithium cell technical field specifically indicates a lithium cell with anti-corrosion function.

Background

The lithium battery is a battery which uses lithium metal or lithium alloy as a negative electrode material and uses a non-aqueous electrolyte solution, the lithium metal battery is firstly proposed and researched by Gilbert N.Lewis in 1912, and the lithium battery is proposed and researched in the 70 th century of 20 th, so that the lithium metal has very high requirements on environment for processing, storing and using due to the very active chemical property of the lithium metal, and the lithium battery becomes a mainstream at present along with the development of scientific technology. The existing lithium battery has poor corrosion resistance, and a battery solution can easily corrode an electrode plate and a shell of the lithium battery, so that serious damage is caused. In addition, in order to improve the sealing performance of the conventional lithium battery, the heat dissipation of the lithium battery is poor, and the battery is easily damaged due to the overhigh temperature.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome above-mentioned defect, provide a lithium cell that has anticorrosion function that heat-sinking capability is good and have anticorrosion ability.

In order to solve the technical problem, the utility model provides a technical scheme does: a lithium battery with an anti-corrosion function comprises a lithium battery main shell, wherein the lithium battery main shell comprises a lithium battery outer shell, an anti-corrosion layer and a lithium battery inner shell which are sequentially arranged from outside to inside, the opening of the lithium battery inner shell is upward, a sealing cover is arranged at the upper end of the lithium battery inner shell, a graphite plug block is arranged at the lower end of the sealing cover, electrode plates are inserted at two sides of the sealing cover and the graphite plug block, the lower ends of the electrode plates extend into the lithium battery inner shell, the upper ends of the electrode plates extend to the upper end of the lithium battery outer shell, annular sealing grooves are respectively arranged at the upper ends of the sealing cover and the outer wall of the lithium battery inner shell, annular sealing plates matched with the sealing grooves are sleeved on the sealing cover and the lithium battery inner shell, the upper ends and the lower, the inside one side of storage water tank is equipped with miniature waterproof pump, miniature waterproof pump one end is with the inside intercommunication of storage water tank, the miniature waterproof pump other end is equipped with the liquid cooling pipe, the other end of the miniature waterproof pump of liquid cooling union coupling passes storage water tank and lithium cell shell and cup joints outside the lithium cell inner shell, the inside opposite side of storage water tank is equipped with the circulating pipe, circulating pipe one end extends to inside and with the liquid cooling pipe intercommunication of lithium cell shell.

Compared with the prior art, the utility model the advantage lie in: compared with the prior art, the utility model discloses a liquid cold tube that sets up dispels the heat to the lithium cell inner shell of inside, produce thermal essential element when placing battery solution in the lithium cell inner shell, water-cooling heat dissipation can cool down effectively, avoid the high temperature to lead to damaging, in addition, the graphite chock that sets up can carry out chemical reaction with battery solution, the reaction principle of graphite is the same with the reaction principle of plate electrode, still possess the function of lithium cell, graphite replaces the corrosion loss that some reaction can reduce the plate electrode, the ability of anticorrosiving has been strengthened.

As an improvement, the upper end of the lithium battery shell is spliced with an anti-corrosion sleeve sleeved on the electrode plate. The anti-corrosion sleeve can prevent the electrode plate from directly contacting with the lithium battery shell, and avoids corrosion caused by reaction generated by the contact of the metal shell and the lithium battery shell.

As an improvement, heat conducting copper plates are uniformly distributed up and down on two sides of the lower end of the lithium battery inner shell, a first heat dissipation guide hole matched with the heat conducting copper plates for use is formed in the anti-corrosion layer, a second heat dissipation guide hole matched with the first heat dissipation guide hole for use is formed in the lithium battery outer shell, and an L-shaped heat conducting pipe is inserted in the second heat dissipation guide hole. The heat conduction copper can lead out the heat that the lithium cell inner shell produced, inside with the help of heat dissipation guide hole one and heat dissipation guide hole two with the heat derivation lithium cell.

As an improvement, the lithium battery shell, the anti-corrosion layer and the water storage tank are spliced with sealing sleeves which are sleeved on the liquid cooling pipe and the circulating pipe. The seal cover can add solid-liquid cold tube and circulating pipe, avoids the two to produce not hard up, prevents simultaneously that the water in the water tank from directly revealing inside getting into the lithium cell.

As the improvement, the inside bottom surface both sides of lithium cell shell are equipped with branch, branch upper end is with lithium cell inner shell bottom surface fixed connection. The effect of branch is connected lithium cell outer shell and lithium cell inner shell and supports and play the lithium cell inner shell.

Drawings

Fig. 1 is a schematic structural diagram of a lithium battery with an anti-corrosion function according to the present invention.

As shown in the figure: 1. the lithium battery comprises a lithium battery main shell, 2, a lithium battery outer shell, 3, an anti-corrosion layer, 4, a lithium battery inner shell, 5, a sealing cover, 6, a graphite plug block, 7, an electrode plate, 8, an anti-corrosion sleeve, 9, a sealing groove, 10, a sealing plate, 11, a water storage tank, 12, a circulating pipe, 13, a liquid cooling pipe, 14, a micro waterproof water pump, 15, a heat conduction copper plate, 16, a first heat dissipation guide hole, 17, a heat conduction pipe, 18, a second heat dissipation guide hole, 19, a support rod, 20 and a sealing sleeve.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

With reference to the attached drawing 1, a lithium battery with an anti-corrosion function comprises a lithium battery main shell 1, wherein the lithium battery main shell 1 comprises a lithium battery outer shell 2, an anti-corrosion layer 3 and a lithium battery inner shell 4 which are sequentially arranged from outside to inside, an opening of the lithium battery inner shell 4 is upward, a sealing cover 5 is arranged at the upper end of the lithium battery inner shell 4, a graphite plug 6 is arranged at the lower end of the sealing cover 5, electrode plates 7 are inserted at two sides of the sealing cover 5 and the graphite plug 6, the lower end of each electrode plate 7 extends into the lithium battery inner shell 4, the upper end of each electrode plate 7 extends to the upper end of the lithium battery outer shell 2, annular sealing grooves 9 are respectively arranged at the upper ends of the sealing cover 5 and the outer wall of the lithium battery inner shell 4, annular sealing plates 10 matched with the sealing grooves 9 are sleeved on the sealing cover 5 and the lithium battery inner shell, annular storage water tank 11 has been cup jointed to 2 outside upper ends of lithium cell casing, 11 inside one side of storage water tank is equipped with miniature waterproof pump 14, miniature waterproof pump 14 one end is with 11 inside intercommunications of storage water tank, the miniature waterproof pump 14 other end is equipped with liquid cooling pipe 13, liquid cooling pipe 13 connects miniature waterproof pump 14's the other end and passes storage water tank 11 and lithium cell casing 2 and around the connection 4 outsides in lithium cell casing, 11 inside opposite sides of storage water tank are equipped with circulating pipe 12, circulating pipe 12 one end extends to 2 inside and with liquid cooling pipe 13 intercommunications of lithium cell casing.

The upper end of the lithium battery shell 2 is spliced with an anti-corrosion sleeve 8 which is sleeved on the electrode plate 7.

The lithium battery shell is characterized in that heat-conducting copper plates 15 are uniformly distributed on the two sides of the lower end of the lithium battery inner shell 4, a first heat-radiating guide hole 16 matched with the heat-conducting copper plate 15 for use is formed in the anti-corrosion layer 3, a second heat-radiating guide hole 18 matched with the first heat-radiating guide hole 16 for use is formed in the lithium battery outer shell 2, and an L-shaped heat-conducting pipe 17 is inserted in the second heat-radiating guide.

And a sealing sleeve 20 sleeved on the liquid cooling pipe 13 and the circulating pipe 12 is inserted on the lithium battery shell 2, the anti-corrosion layer 3 and the water storage tank 11.

The inside bottom surface both sides of lithium cell shell 2 are equipped with

branch

19, 19 upper ends of branch are with lithium cell shell 4 bottom surface fixed connection.

The utility model discloses a theory of operation:

the invention and its embodiments have been described above, without limitation, and what is shown in the drawings is only the invention

The utility model discloses a theory of operation: the corrosion of lithium batteries is basically divided into two types, one is corrosion loss generated by the reaction of an electrode plate with a battery solution all the time, which is unavoidable, and the other is corrosion generated on a lithium battery shell by leakage of the battery solution. The utility model reduces the loss of the electrode plate 7 by arranging the graphite chock 6, the graphite chock 6 is divided into two blocks which are respectively connected with the two electrode plates 7, the raw material graphite of the graphite chock 6 is the same as the raw material of the electrode plate 7, the raw material of the electrode plate 7 is graphite which is essentially equivalent to increase the contact end between the electrode plate 7 and the battery solution, the service life under the condition of reaction corrosion of the lower end of the electrode plate 7 is prolonged, and the anti-corrosion capability is further enhanced, in addition, the utility model is provided with the anti-corrosion sleeve 8 to prevent the electrode plate 7 and the lithium battery shell 2 from directly contacting to generate corrosion, simultaneously, the utility model stores circulating cooling water by arranging the water storage tank 11, realizes the water-cooling heat dissipation of the lithium battery by the liquid cooling pipe 13 and the circulating pipe 12, the heat dissipation capability is enhanced, the heat dissipation capability is further improved by arranging the heat conducting copper plate 15, the first, let the closing plate 10 block revealing of battery solution simultaneously, avoid producing the problem of revealing the corruption, in addition, the raw materials of heat conduction copper 15 have higher activity with, and battery solution in case reveal can be in priority to lithium battery case 2 and battery solution react, avoids causing corrosion damage to lithium battery case 2.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. The utility model provides a lithium cell with anticorrosion function, includes lithium cell total casing (1), lithium cell total casing (1) is including lithium cell outer shell (2), anti-corrosion coating (3) and the lithium cell inner shell (4) that are equipped with in proper order from outer to interior, lithium cell inner shell (4) opening makes progress, its characterized in that: the lithium battery inner shell (4) upper end is equipped with sealed lid (5), sealed lid (5) lower extreme is equipped with graphite chock block (6), both sides are pegged graft on sealed lid (5) and graphite chock block (6) and are had plate electrode (7), plate electrode (7) lower extreme extends to inside lithium battery inner shell (4), plate electrode (7) upper end extends to lithium battery outer shell (2) upper end, sealed lid (5) and lithium battery inner shell (4) outer wall upper end all are equipped with annular seal groove (9), it uses annular closing plate (10) to have cup jointed cooperation seal groove (9) on sealed lid (5) and lithium battery inner shell (4), the upper and lower extreme of closing plate (10) all is equipped with protruding structure, the protruding structure of closing plate (10) is pegged graft in seal groove (9), annular storage water tank (11) has been cup jointed to lithium battery outer shell (2) outside upper end, storage water tank (11) inside one side is equipped with miniature waterproof pump (14), miniature waterproof pump (14) one end communicates with storage water tank (11) inside, miniature waterproof pump (14) other end is equipped with liquid cooling pipe (13), the other end that miniature waterproof pump (14) were connected in liquid cooling pipe (13) passes storage water tank (11) and lithium cell outer shell (2) and around connecing in lithium cell inner shell (4) outside, storage water tank (11) inside opposite side is equipped with circulating pipe (12), circulating pipe (12) one end extends to lithium cell outer shell (2) inside and communicates with liquid cooling pipe (13).

2. The lithium battery with an anticorrosion function according to claim 1, wherein: the upper end of the lithium battery shell (2) is spliced with an anti-corrosion sleeve (8) which is sleeved on the electrode plate (7).

3. The lithium battery with an anticorrosion function according to claim 1, wherein: evenly distributed's heat conduction copper (15) about lithium cell inner shell (4) lower extreme both sides are equipped with, be equipped with on anti-corrosion coating (3) and cooperate heat conduction copper (15) the heat dissipation guide hole (16) that use, be equipped with on lithium cell outer shell (2) and cooperate heat dissipation guide hole two (18) that heat dissipation guide hole (16) used, it has heat pipe (17) of L type to peg graft in heat dissipation guide hole two (18).

4. The lithium battery with an anticorrosion function according to claim 1, wherein: and the lithium battery shell (2), the anti-corrosion layer (3) and the water storage tank (11) are spliced with a sealing sleeve (20) which is sleeved on the liquid cooling pipe (13) and the circulating pipe (12).

5. The lithium battery with an anticorrosion function according to claim 1, wherein: the lithium battery shell (2) is characterized in that supporting rods (19) are arranged on two sides of the inner bottom surface of the lithium battery shell (2), and the upper ends of the supporting rods (19) are fixedly connected with the bottom surface of the lithium battery inner shell (4).