CN207834478U

CN207834478U - A kind of button polymer Li-ion battery

Info

Publication number: CN207834478U
Application number: CN201820269311.1U
Authority: CN
Inventors: 陈伟
Original assignee: Zhongshan Zhongwangde New Energy Technology Co Ltd
Current assignee: Zhongshan Zhongwangde New Energy Technology Co Ltd
Priority date: 2018-02-24
Filing date: 2018-02-24
Publication date: 2018-09-07
Anticipated expiration: 2028-02-24

Abstract

The utility model discloses a kind of button polymer Li-ion battery, the utility model includes rolled electrode, at least two shells, metallic conductor forms anode ear and negative electrode lug by the way that metallic conductor to be connect with the positive and negative anodes of the rolled electrode, then rolled electrode is fitted into one of shell, the metallic conductor can just extend to the outside of shell, then cover remaining shell, be sealed to all shells by heat-sealing.In terms of existing technologies, the electricity bigger that rolled electrode can store, and manufacture is more convenient, eliminates the process on the inside of electrode welding to shell.

Description

A kind of button polymer Li-ion battery

Technical field

The utility model is related to field of lithium, especially a kind of button polymer Li-ion battery.

Technical background

Button cell is a kind of relatively common battery, is active in every field, and traditional button cell is needed battery core It is packed into shell, the shell is the shell of both ends mutually insulated, and then electrode tabs are welded in the both ends of shell, prevented just Negative electrode short circuit, however it is more difficult that electrode tabs are welded in shell both ends, is susceptible to error and scraps, production is more Trouble, and traditional button cell uses stacked electrodes, electricity amount of storage relatively low more.

Utility model content

In order to solve the above-mentioned technical problem, the purpose of this utility model is to provide a kind of more simple, the reserve of electricitys of manufacture Higher button cell.

The utility model be solve the problems, such as described in the technical solution adopted is that：

A kind of button polymer Li-ion battery, including：

Shell, the shell are made of more than two shells, and a vessel is formed in the shell；

Rolled electrode, the rolled electrode include in the shape of a spiral, on the rolled electrode at least one positive electrode and extremely A few negative electrode, the rolled electrode are set in the vessel；

Isolating device, the isolating device is between positive electrode and negative electrode, to prevent positive electrode straight with negative electrode Contact；

At least two metallic conductors, wherein a metallic conductor is electrically connected at least one positive electrode, another metal Conductor is electrically connected at least one negative electrode, and it is described that the metallic conductor passes through one of shell side to extend to Hull outside.

As a further improvement of the above technical scheme, the shell is made of metal material, on the metallic conductor also The seal that can prevent metallic conductor from being contacted with shell there are one being arranged.

As a further improvement of the above technical scheme, the shell is made of aluminum plastic film.

As a further improvement of the above technical scheme, the isolating device is isolation film.

As a further improvement of the above technical scheme, the shape of the rolled electrode is cylinder.

As a further improvement of the above technical scheme, the metallic conductor is metal foil.

The utility model has the beneficial effects that：The utility model includes rolled electrode, at least two shells, metallic conductor, By the way that metallic conductor to be connect with the positive and negative anodes of the rolled electrode, anode ear and negative electrode lug are formed, then fills rolled electrode Enter in one of shell, the metallic conductor can just extend to the outside of shell, then remaining shell in split, lead to Heat-sealing is crossed to be sealed all shells.In terms of existing technologies, the electricity bigger that rolled electrode can store, and It manufactures more convenient, eliminates the process on the inside of electrode welding to shell.

Description of the drawings

Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.

Fig. 1 is the wrap-around electrode structure schematic diagram of the first case study on implementation of the utility model；

Fig. 2 is the structural schematic diagram after the rolled electrode of the utility model the first case study on implementation is installed in shell；

Fig. 3, which is the first case study on implementation of the utility model, to prolong the structural schematic diagram after side seals outside shell；

Fig. 4 is the finished product structure schematic diagram of second of case study on implementation of the utility model；

Fig. 5 is the wrap-around electrode structure schematic diagram of second of case study on implementation of the utility model；

Fig. 6 is the structural schematic diagram after the rolled electrode of second of case study on implementation of the utility model is installed in shell；

Fig. 7, which is second of case study on implementation of the utility model, to prolong the structural schematic diagram after side seals outside shell；

Fig. 8 is the finished product structure schematic diagram of second of case study on implementation of the utility model；

Fig. 9 is the structural schematic diagram of the preferred shell of the utility model.

Specific implementation mode

A kind of button polymer Li-ion battery, including：Shell, the shell is made of more than two shells, described A vessel is formed in shell；Rolled electrode 10, the rolled electrode include in the shape of a spiral, on the rolled electrode 10 at least one A positive electrode and at least one negative electrode, the rolled electrode 10 are set in the vessel；Isolating device, the isolating device Between positive electrode and negative electrode, to prevent positive electrode and negative electrode to be in direct contact, the isolating device is preferably isolated Film, suboptimum are selected as insulating frame；At least two metallic conductors 20 a, wherein metallic conductor 20 and at least one positive electrode are electrical Connection, another metallic conductor 20 are electrically connected at least one negative electrode, and the metallic conductor 20 passes through its of the shell In a side extend to the hull outside.The metallic conductor 20 forms rolled electrode 10 after being connect with positive and negative electrode Positive and negative lug, the metallic conductor 20 are preferably metal foil.Plastic or other material may be selected in the material of the shell 40, it is contemplated that strong Spend and use problem, preferably metal group material, it is contemplated that the convenience of manufacture, most preferably aluminum plastic film are made.Work as use When metal group material is as shell 40, it is contemplated that positive and negative lug is unable to short circuit, therefore is arranged with one on the metallic conductor 20 A seal 30 that can prevent metallic conductor 20 from being contacted with shell, to prevent being caused after being contacted with shell because of positive and negative lug Short circuit, the seal 30 are preferably rubber sleeve, and suboptimum is selected as ambroin.

The metallic conductor 20 can be just connected to before winding on positive electrode and negative electrode, and the connection type is preferred For welding, suboptimum is selected as being bolted.The rolled electrode 10 is preferably wound into cylinder.

It these are only the preferred implementation case of the utility model, it does not limit the scope of the patent of the present invention, all It is under the utility model design of the utility model, equivalent structure made based on the specification and figures of the utility model becomes It changes, is similarly included in other related technical fields in the scope of patent protection for being included in the utility model.

Claims

1. a kind of button polymer Li-ion battery, which is characterized in that including：

Shell, the shell are made of more than two shells (40), and a vessel is formed in the shell；

Rolled electrode (10), the rolled electrode in the shape of a spiral, on the rolled electrode (10) include at least one positive electrode and At least one negative electrode, the rolled electrode (10) are set in the vessel；

Isolating device, the isolating device is between positive electrode and negative electrode, to prevent positive electrode from directly being connect with negative electrode It touches；

At least two metallic conductors (20), wherein a metallic conductor (20) is electrically connected at least one positive electrode, Ling Yigen Metallic conductor (20) is electrically connected at least one negative electrode, and the metallic conductor (20) passes through one of shell side Wall extends to the hull outside.

2. a kind of button polymer Li-ion battery as described in claim 1, it is characterised in that：

The shell (40) is made of metal material, is also arranged on the metallic conductor (20) there are one can prevent metallic conductor (20) seal (30) contacted with shell.

3. a kind of button polymer Li-ion battery as claimed in claim 2, it is characterised in that：

The shell (40) is made of aluminum plastic film.

4. a kind of button polymer Li-ion battery as described in claim 1, it is characterised in that：

The isolating device is isolation film.

5. a kind of button polymer Li-ion battery as described in claim 1, it is characterised in that：

The shape of the rolled electrode (10) is cylinder.

6. a kind of button polymer Li-ion battery as described in claim 1, it is characterised in that：

The metallic conductor (20) is metal foil.