CN208722931U

CN208722931U - A kind of high safety type overcharge-resisting lithium ion battery

Info

Publication number: CN208722931U
Application number: CN201821388690.2U
Authority: CN
Inventors: 邓根根
Original assignee: Jiangxi Super Reform Energy Science And Technology Ltd Co
Current assignee: Jiangxi Chaowei New Energy Technology Co., Ltd
Priority date: 2018-08-27
Filing date: 2018-08-27
Publication date: 2019-04-09
Anticipated expiration: 2028-08-27

Abstract

The utility model provides a kind of high safety type overcharge-resisting lithium ion battery, including shell, spring support and electricity accumulating unit, shell includes outermost plasticizing layer, one layer of heat-sink shell is fixedly connected in plasticizing layer, it is fixedly connected with one layer inside heat-sink shell and resistance to tears layer, the resistance to layer that tears is fixedly connected on internal metal layer, several groups spring support is fixedly connected on the upper and lower side inner wall of metal layer, the other end of spring support is fixedly connected with latch plate, the quadrangle of latch plate is equipped with four groups of limiting slots, the grafting limited post in limiting slot, limited post upper and lower side is fixedly connected on the upper and lower side inner wall of metal layer, fixed clamp is clamped one piece of electricity accumulating unit in four groups of limited posts on latch plate, the utility model has high stability, the characteristics of high security and high practicability, with good flame-proof explosion-proof effect, it is the heat distributed that battery, which can be absorbed, and use, The influence that temperature generates battery is reduced, battery is extended.

Description

A kind of high safety type overcharge-resisting lithium ion battery

Technical field

The utility model relates to arrive technical field of lithium batteries, specially a kind of high safety type overcharge-resisting lithium ion battery.

Background technique

Lithium ion battery: being a kind of secondary cell (rechargeable battery), it relies primarily on lithium ion between a positive electrode and a negative electrode Movement carrys out work.In charge and discharge process, Li+ insertion and deintercalation back and forth between two electrodes: when charging, Li+ is de- from anode It is embedding, it is embedded in cathode by electrolyte, cathode is in lithium-rich state；It is then opposite when electric discharge.

It will use diaphragm in existing lithium ion battery and carry out separation to positive and negative anodes, diaphragm withers can generate after by high temperature The case where contracting makes to leak at partition, positive and negative anodes interaction, cell damage can be made not to be available appearance, and diaphragm generates in the battery Effect very little, therefore can design it is a kind of do not have septate lithium ion battery because after lithium ion ingress of air can be violent Oxidation generates huge heat, understands on fire or even quick-fried photograph, very big security risk is brought to human body, and in the prior art Lithium ion battery does not have this problem of very good solution, for this purpose, the utility model proposes a kind of high safety type overcharging resisting lithium ions Battery is for solving the above problems.

Utility model content

The purpose of this utility model is to provide a kind of high safety type overcharge-resisting lithium ion batteries, to solve above-mentioned background skill The problem of being proposed in art.

To achieve the above object, the utility model provides the following technical solutions: a kind of high safety type overcharging resisting lithium-ion electric Pond, including shell, spring support and electricity accumulating unit, the shell include outermost plasticizing layer, fixed in the plasticizing layer to connect Connect one layer of heat-sink shell, be fixedly connected inside the heat-sink shell one layer it is resistance to tear layer, the resistance to layer that tears is fixedly connected on internal metal On layer, several groups spring support is fixedly connected on the upper and lower side inner wall of the metal layer, the other end of the spring support is solid Determine connecting spring plate, the quadrangle of the latch plate is equipped with four groups of limiting slots, the grafting limited post in limiting slot, on the limited post Lower end is fixedly connected on the upper and lower side inner wall of metal layer, and fixed clamp is clamped one piece of storage in four groups of limited posts on the latch plate Electric unit, the electricity accumulating unit include outermost plastic foil, and the plastic film wrapped is outside the resin layer of internal layer, the resin It is divided into three modules in layer, the outermost layer of three modules is coated with one layer of ceramic coating, is equipped in the ceramic coating upper Lower two pieces of positive and negative anodes active materials are fixedly connected with one piece of positive and negative anodes collector among two pieces of positive and negative anodes active materials.

Preferably, the plasticizing layer is made of rectangular-shape duroplasts, and plasticizing layer passes through snap assembled.

Preferably, the heat-sink shell by rectangular-shape heat absorption sponge be made, heat-sink shell be connected to plasticizing layer and it is resistance to tear layer it Between.

Preferably, the resistance to layer that tears is made of reticular fibre, and the resistance to layer that tears is bonded on the outside of metal layer by glue.

Preferably, the metal layer is made of rectangular-shape flexible metal, is integrally formed on the upper and lower side inner wall of metal layer Be equipped with several spring fixed seats.

Preferably, the spring support includes upper end and the integrally formed spring fixed seat of metal layer, in spring fixed seat Centre is equipped with telescopic supporting rod, one group of spring is arranged outside telescopic supporting rod, the end of telescopic supporting rod is fixedly connected with another Spring fixed seat, the spring fixed seat are arranged on latch plate, and are integrally formed with latch plate.

Preferably, the latch plate size is less than or equal to the size of metal layer upper and lower side inner wall, and four angles of latch plate are equipped with Four groups of limiting slots are interspersed with limited post in limiting slot, and there are two every group of limiting slot limiting slots, and two limiting slots are at right angles distributed.

Compared with prior art, the utility model has the beneficial effects that

1. the utility model has the characteristics of high stability, high security and high practicability, there is good flame-proof explosion-proof Effect can be absorbed battery using being the heat distributed, reduce the influence that temperature generates battery, extends battery, Diaphragm is replaced by ceramic coating and resin layer, it is more preferable than the partition effect of diaphragm, and relieve battery overheat and burn diaphragm Security risk, the use that can more trust；

2. the utility model be equipped with shell, shell include plasticizing layer, heat-sink shell, it is resistance to tear layer and metal layer, pass through four layers knot Structure can provide higher leakproofness, can effectively slow down battery explosion bring impact force, and there is heat-sink shell can inhale Internal heat of battery is received, the inducement of battery catches fire is reduced；

3. the utility model is equipped with spring support and latch plate, electricity accumulating unit can be consolidated by spring support and latch plate It lives calmly, explosion bring impact, raising safety can be buffered at the first time in case of explosion.

Detailed description of the invention

Fig. 1 is the utility model main view；

Fig. 2 is the top view of Fig. 1.

In figure: layer, 4 metal layers, 5 spring supports, 6 latch plates, 7 plastic foils, 8 resins resistance to are torn in 1 plasticizing layer, 2 heat-sink shells, 3 Layer, 9 ceramic coatings, 10 negative electrode active materials, 11 negative current collectors, 12 positive active materials, 13 plus plate current-collecting bodies, 14 limits Column, 15 wire casings, 16 charge and discharge electrical interfaces.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

The utility model provides a kind of technical solution referring to FIG. 1-2: a kind of high safety type overcharge-resisting lithium ion battery, Including shell, spring support 5 and electricity accumulating unit, shell includes outermost plasticizing layer 1, is plasticized in layer 1 and is fixedly connected with one layer of suction Thermosphere 2, be fixedly connected inside heat-sink shell 2 one layer it is resistance to tear layer 3, the resistance to layer 3 that tears is fixedly connected on internal metal layer 4, in metal It is fixedly connected with several groups spring support 5 on the upper and lower side inner wall of layer 4, the other end of spring support 5 is fixedly connected with latch plate 6, bullet The quadrangle of spring plate 6 is equipped with four groups of limiting slots, the grafting limited post 14 in limiting slot, and 14 upper and lower side of limited post is fixedly connected on metal On the upper and lower side inner wall of layer 4, fixed clamp is clamped one piece of electricity accumulating unit, electricity accumulating unit packet in four groups of limited posts 14 on latch plate 6 Outermost plastic foil 7 is included, plastic foil 7 is wrapped in outside the resin layer 8 of internal layer, and three modules, three modules are divided into resin layer 8 Outermost layer be coated with one layer of ceramic coating 9, in ceramic coating 9 be equipped with upper and lower two pieces of positive/negative active materials 12/10, two One piece of positive/negative collector 13/11 is fixedly connected among block positive/negative active material 12/10.

Further, plasticizing layer 1 is made of rectangular-shape duroplasts, and plasticizing layer 1 is plasticized 1 quality of layer by snap assembled Harder, toughness is higher, and anti-wear effect is good, can effectively prevent shell abrasion, extends shell service life.

Further, heat-sink shell 2 is made of rectangular-shape heat absorption sponge, and heat-sink shell 2 is connected to plasticizing layer 1 and resistance to tears layer 3 Between, the heat of battery release can be absorbed in heat-sink shell 2, cools down to battery, prevents battery temperature from influencing battery and uses, extends The service life of battery.

Further, the resistance to layer 3 that tears is made of reticular fibre, and the resistance to layer 3 that tears is bonded on the outside of metal layer 4 by glue, passes through It is resistance to tear the bonding of layer 3 just in 4 outside of metal layer, the toughness of metal layer 4 can be enhanced, can more effectively be prevented explosion time occurs The impact of explosion prevents blast impulse from breaking through shell damage human body.

Further, metal layer 4 is made of rectangular-shape flexible metal, is integrally formed on the upper and lower side inner wall of metal layer 4 Be equipped with several spring fixed seats, by metal layer 4 can obstruct explosion time generation flame, reduce explosive range, reduce it is quick-fried Fried bring influences.

Further, spring support 5 includes upper end and the integrally formed spring fixed seat of metal layer 4, in spring fixed seat Centre is equipped with telescopic supporting rod, one group of spring is arranged outside telescopic supporting rod, the end of telescopic supporting rod is fixedly connected with another Spring fixed seat, the spring fixed seat are arranged on latch plate 6, and are integrally formed with latch plate 6.

Further, 6 size of latch plate is less than or equal to the size of 4 upper and lower side inner wall of metal layer, and 6 four angles of latch plate are equipped with Four groups of limiting slots are interspersed with limited post 14 in limiting slot, and there are two every group of limiting slot limiting slots, and two limiting slots at right angles divide Electricity accumulating unit can be connected on latch plate 6 by cloth by limited post, and abut electric power storage by 5 support spring plate 6 of spring support Unit stablizes electricity accumulating unit, and if battery explosion, latch plate 6 and spring support 5 can buffer explosion at the first time Impact makes battery have higher safety.

Further, 13/11 front end of positive/negative collector is electrically connected conducting wire, and conducting wire is connected to charge and discharge by wire casing 15 It on electrical interface 16, can be charged the battery by charge and discharge electrical interface 16, or using battery when discharges.

Working principle: when work, shell includes outermost plasticizing layer 1 first, is plasticized in layer 1 and is fixedly connected with one layer of heat absorption Layer 2, be fixedly connected inside heat-sink shell 2 one layer it is resistance to tear layer 3, the resistance to layer 3 that tears is fixedly connected on internal metal layer 4, passes through four layers Structure can provide higher leakproofness, can effectively slow down battery explosion bring impact force, and have heat-sink shell can be with Internal heat of battery is absorbed, the inducement of battery catches fire is reduced, is fixedly connected with several groups spring on the upper and lower side inner wall of metal layer 4 Bracket 5, the other end of spring support 5 are fixedly connected with latch plate 6, and the quadrangle of latch plate 6 is equipped with four groups of limiting slots, in limiting slot Grafting limited post 14,14 upper and lower side of limited post are fixedly connected on the upper and lower side inner wall of metal layer 4, pass through spring support 5 and bullet Spring plate 6 can fix electricity accumulating unit, can buffer explosion bring impact at the first time in case of explosion, improve safety Property, and diaphragm is replaced by ceramic coating 9 and resin layer 8, it is more preferable than the partition effect of diaphragm, and relieve battery overheat The security risk of diaphragm is burnt, the use that can more trust.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims

1. a kind of high safety type overcharge-resisting lithium ion battery, including shell, spring support (5) and electricity accumulating unit, it is characterised in that: The shell includes outermost plasticizing layer (1), is fixedly connected with one layer of heat-sink shell (2), the heat-sink shell in the plasticizing layer (1) (2) it is internal be fixedly connected one layer it is resistance to tear layer (3), the resistance to layer (3) that tears is fixedly connected on internal metal layer (4), described It is fixedly connected on the upper and lower side inner wall of metal layer (4) several groups spring support (5), the other end of the spring support (5) is fixed The quadrangle of connecting spring plate (6), the latch plate (6) is equipped with four groups of limiting slots, and grafting limited post (14), described in limiting slot Limited post (14) upper and lower side is fixedly connected on the upper and lower side inner wall of metal layer (4), the upper four groups of limited posts of latch plate (6) (14) fixed clamp is clamped one piece of electricity accumulating unit in, and the electricity accumulating unit includes outermost plastic foil (7), the plastic foil (7) resin layer (8) for being wrapped in internal layer outside, is divided into three modules in the resin layer (8), the outermost layer of three modules applies There is one layer of ceramic coating (9), upper and lower two pieces of positive/negative active materials (12/10) is equipped in the ceramic coating (9), in institute It states and is fixedly connected with one piece of positive/negative collector (13/11) among two pieces of positive/negative active materials (12/10).

2. a kind of high safety type overcharge-resisting lithium ion battery according to claim 1, it is characterised in that: the plasticizing layer (1) it is made of rectangular-shape duroplasts, plasticizing layer (1) passes through snap assembled.

3. a kind of high safety type overcharge-resisting lithium ion battery according to claim 1, it is characterised in that: the heat-sink shell (2) it is made of rectangular-shape heat absorption sponge, heat-sink shell (2) is connected to plasticizing layer (1) and resistance to tears between layer (3).

4. a kind of high safety type overcharge-resisting lithium ion battery according to claim 1, it is characterised in that: described resistance to tear layer (3) it is made of reticular fibre, the resistance to layer (3) that tears is bonded on the outside of metal layer (4) by glue.

5. a kind of high safety type overcharge-resisting lithium ion battery according to claim 1, it is characterised in that: the metal layer (4) it is made of rectangular-shape flexible metal, it is integrally formed on the upper and lower side inner wall of metal layer (4) to be fixed equipped with several springs Seat.

6. a kind of high safety type overcharge-resisting lithium ion battery according to claim 1, it is characterised in that: the spring support (5) include upper end and metal layer (4) integrally formed spring fixed seat, telescopic supporting rod is equipped among spring fixed seat, It is arranged one group of spring outside telescopic supporting rod, the end of telescopic supporting rod is fixedly connected with another spring fixed seat, which fixes Seat is arranged on latch plate (6), and is integrally formed with latch plate (6).

7. a kind of high safety type overcharge-resisting lithium ion battery according to claim 1, it is characterised in that: the latch plate (6) size is less than or equal to the size of metal layer (4) upper and lower side inner wall, and (6) four angles of latch plate are equipped with four groups of limiting slots, limiting slot In be interspersed with limited post (14), there are two every group of limiting slot limiting slots, and two limiting slots are at right angles distributed.

8. a kind of high safety type overcharge-resisting lithium ion battery according to claim 1, it is characterised in that: the positive/negative Collector (13/11) front end is electrically connected conducting wire, and conducting wire is connected on charge and discharge electrical interface (16) by wire casing (15).