CN206685479U

CN206685479U - A kind of small polymer lithium ion battery

Info

Publication number: CN206685479U
Application number: CN201720374702.5U
Authority: CN
Inventors: 易晓山; 汤大明
Original assignee: Dongguan Mount Lithium Battery Technology Co Ltd
Current assignee: Dongguan Mount Lithium Battery Technology Co Ltd
Priority date: 2017-04-11
Filing date: 2017-04-11
Publication date: 2017-11-28
Anticipated expiration: 2027-04-11

Abstract

A kind of small polymer lithium ion battery is the utility model is related to, including：Lithium cell, combined for multiple single battery cores；Insulating outer layer, the inner space of lithium cell is sealed by hot pressing mode；Lug pad, is arranged on lithium cell, including the base portion extended from the negative or positive electrode of lithium cell and the linkage section formed from base portion extension；Cell polar ear, the top of lithium cell is arranged on, is connected with the lug pad；Barrier film, by cell polar ear, lithium cell is mutually isolated, keeps insulating；Ultra-fine volume pin, cell polar ear and lithium cell are wrapped up for barrier film.The utility model completes barrier film to cell polar ear and the parcel of lithium cell using ultra-fine volume pin, realize that the maximum saving in inside battery space utilizes, lug pad is bundled together with lithium cell, inside cell polar ear insertion battery core, improve production efficiency when battery makes, it is of the present utility model simple in construction, it is easy to use, battery can be made to accomplish minimization.

Description

A kind of small polymer lithium ion battery

Technical field

The utility model belongs to technical field of lithium batteries, more particularly to a kind of small polymer lithium ion battery.

Background technology

Lithium battery is widely used in the fields such as mobile phone, tablet personal computer, and due to its light weight, energy storage is big, it is fast to realize Speed charging, therefore, it will obtain bigger expansion using field, and existing lithium battery is typically all needed due to its capacity requirement Want size to be made big, be unfavorable for the demand of some special occasions, it is existing during especially for needing the less lithium battery of size Lithium battery technology is not met by demand, and therefore, prior art needs to improve.

The content of the invention

In order to solve above mentioned problem existing for prior art, the utility model discloses a kind of small polymer lithium-ion electric Pond, including：

Lithium cell, the lithium cell are the energy storage main body of lithium ion battery, the lithium cell for multiple single battery cores combinations and Into；

Insulating outer layer, the insulating outer layer are the exterior protection layer of battery, for protecting internal lithium cell and battery core to connect Part, the insulating outer layer are sealed the inner space of lithium cell by hot pressing mode；

Lug pad, the lug pad are arranged on lithium cell, the battery core pad include from the positive pole of lithium cell or The base portion and extend the linkage section formed from base portion that negative pole extends, the lug pad sets two, respectively positive pole Lug pad, it is connected, negative lug pad, is connected with the negative pole of lithium cell with the positive pole of lithium cell, the positive pole ear pad Upper end and the mutually insulated of lithium cell are disposed in parallel in negative lug pad；

Cell polar ear, the cell polar ear are arranged on the top of lithium cell, are connected with the lug pad, the battery core pole Ear includes weld part and contact portion, and the weld part is used for and lug pad solder, the contact site sheet metal structure, top Right-angle bending, the weld part and external insulation are set, and contact portion is arranged on the outside of insulating outer layer, and its crooked position is arranged on electricity The top outer rim of pond encapsulation, for being connected with electrical equipment, the cell polar ear includes three, and one connects with positive pole ear pad Connect, one is connected with negative lug pad, a ground connection；

Barrier film, the barrier film by way of by cell polar ear parcel by the separation of the positive pole, negative pole and earth terminal of cell polar ear, The mode that lithium cell is wound will be mutually isolated between multiple lithium cells, makes the positive pole between cell polar ear, negative pole and is grounded it Between keep insulation, and ensure to form separate space between lithium cell, the barrier film is by the lithium cell and lug pad bag It is rolled in together；

Ultra-fine volume pin, the ultra-fine volume pin are used to, when barrier film wraps up cell polar ear and lithium cell, make barrier film and battery core pole Wrapped up between ear, lithium cell close.

In another embodiment based on above-mentioned small polymer lithium ion battery, the lug pad is copper material, institute It is square structure to state lug pad, is connected by the positive pole and negative pole of power line and lithium cell.

In another embodiment based on above-mentioned small polymer lithium ion battery, the barrier film is flexible insulation material.

In another embodiment based on above-mentioned small polymer lithium ion battery, the lithium cell sets various arrangement side Formula, by the difference of arrangement mode, reduce the apparent size of battery.

In another embodiment based on above-mentioned small polymer lithium ion battery, the insulating outer layer is plastic cement material.

Compared with prior art, the utility model has advantages below：

The utility model completes barrier film to cell polar ear and the parcel of lithium cell using ultra-fine volume pin, realizes inside battery sky Between maximum saving utilize, enable unit volume shell that lithium cell as much as possible can be set, meanwhile, by lug pad It is bundled together with lithium cell, solves and in the prior art directly weld cell polar ear on lithium cell, caused cell polar ear The problem of can not inserting inside battery core, improve production efficiency when battery makes, of the present utility model simple in construction, user Just, battery can be made to accomplish minimization.

Below by drawings and examples, the technical solution of the utility model is described in further detail.

Brief description of the drawings

, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the accompanying drawing used in description of the prior art does one and simply introduced.

Fig. 1 is a kind of structural representation of one embodiment of small polymer lithium ion battery of the present utility model；

Fig. 2 is a kind of structural representation of another embodiment of small polymer lithium ion battery of the present utility model.

In figure：1 lithium cell, 2 insulating outer layers, 3 lug pads, 4 cell polar ears, 5 barrier films, 6 ultra-fine volume pins.

Embodiment

It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched The embodiment stated is only the utility model part of the embodiment, rather than whole embodiments.Based in the utility model Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all Belong to the scope of the utility model protection.

Fig. 1 is a kind of structural representation of small polymer lithium ion battery of the present utility model, and Fig. 2 is the utility model A kind of small polymer lithium ion battery another embodiment structural representation, it is as shown in Figure 1 and Figure 2, described small-sized poly- Compound lithium ion battery includes：

Lithium cell 1, the lithium cell 1 are the energy storage main body of lithium ion battery, and the lithium cell 1 is multiple single battery core combinations Form；

Insulating outer layer 2, the insulating outer layer 2 are the exterior protection layer of battery, for protecting internal lithium cell 1 and battery core to connect Relay part, the insulating outer layer 2 are sealed the inner space of lithium cell 1 by hot pressing mode；

Lug pad 3, the lug pad 3 are arranged on lithium cell 1, and the battery core pad 3 is included from lithium cell 1 just The base portion and extend the linkage section formed from base portion that pole or negative pole extend, the lug pad 3 sets two, is respectively Positive pole ear pad, it is connected, negative lug pad, is connected with the negative pole of lithium cell 1 with the positive pole of lithium cell 1, the positive pole pole Ear pad is disposed in parallel in upper end and the mutually insulated of lithium cell 1 with negative lug pad；

Cell polar ear 4, the cell polar ear 4 are arranged on the top of lithium cell 1, are connected with the lug pad 3, the electricity Core lug 4 includes weld part and contact portion, and the weld part is used to weld with lug pad 3, the contact site sheet metal knot Structure, top set right-angle bending, the weld part and external insulation, and contact portion is arranged on the outside of insulating outer layer 2, its crooked position The top outer rim of cell package is arranged on, for being connected with electrical equipment, the cell polar ear 4 includes three, one and positive pole Lug pad connects, and one is connected with negative lug pad, a ground connection；

Barrier film 5, the barrier film 5 by cell polar ear 4 by wrapping up mode by the positive pole, negative pole and earth terminal of cell polar ear 4 Separation, will be mutually isolated between multiple lithium cells 1 by the mode that lithium cell 1 is wound, make positive pole, negative pole between cell polar ear 4 Insulation is kept between ground connection, and ensures to form separate space between lithium cell 1, the barrier film 5 is by the He of lithium cell 1 Lug pad 3 is bundled together；

Ultra-fine volume pin 6, the ultra-fine volume pin 6 are used to wrap up cell polar ear 4 and during lithium cell 1 in barrier film 5, make barrier film 5 with Wrapped up between cell polar ear 4, lithium cell 1 close.

The lug pad 3 is copper material, and the lug pad 3 is square structure, by power line and lithium cell 1 just Pole connects with negative pole.

The barrier film 5 is flexible insulation material.

The lithium cell 1 sets various arrangement mode, by the difference of arrangement mode, reduces the apparent size of battery.

The insulating outer layer 2 is plastic cement material.

A kind of small polymer lithium ion battery provided by the utility model is described in detail above, herein Apply specific case to be set forth principle of the present utility model and embodiment, the explanation of above example is only intended to Help understands method and its core concept of the present utility model；Meanwhile for those of ordinary skill in the art, according to this practicality New thought, there will be changes in specific embodiments and applications, in summary, this specification content should It is interpreted as to limitation of the present utility model.

Finally it should be noted that：Preferred embodiment of the present utility model is the foregoing is only, is not limited to this Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art For, it can still modify to the technical scheme described in foregoing embodiments, or to which part technical characteristic Progress equivalent substitution, all within the spirit and principles of the utility model, any modification, equivalent substitution and improvements made etc., It should be included within the scope of protection of the utility model.

Claims

A kind of 1. small polymer lithium ion battery, it is characterised in that including：

Lithium cell, the lithium cell are the energy storage main body of lithium ion battery, and the lithium cell is that multiple single battery cores combine；

Insulating outer layer, the insulating outer layer is the exterior protection layer of battery, for protecting internal lithium cell and battery core connection member, The insulating outer layer is sealed the inner space of lithium cell by hot pressing mode；

Lug pad, the lug pad are arranged on lithium cell, and the battery core pad includes the negative or positive electrode from lithium cell The base portion extended and the linkage section formed from base portion extension, the lug pad set two, respectively positive pole ear Pad, it is connected, negative lug pad, is connected with the negative pole of lithium cell with the positive pole of lithium cell, the positive pole ear pad is with bearing Pole lug pad is disposed in parallel in upper end and the mutually insulated of lithium cell；

Cell polar ear, the cell polar ear are arranged on the top of lithium cell, are connected with the lug pad, the cell polar ear bag Weld part and contact portion are included, the weld part is used to set with lug pad solder, the contact site sheet metal structure, top Right-angle bending, the weld part and external insulation, contact portion are arranged on the outside of insulating outer layer, and its crooked position is arranged on battery envelope The top outer rim of dress, for being connected with electrical equipment, the cell polar ear includes three, and one is connected with positive pole ear pad, One is connected with negative lug pad, a ground connection；

Barrier film, the barrier film is by way of by cell polar ear parcel by the separation of the positive pole, negative pole and earth terminal of cell polar ear, by lithium The mode of battery core winding will be mutually isolated between multiple lithium cells, makes to protect between the positive pole between cell polar ear, negative pole and ground connection Insulation is held, and ensures to form separate space between lithium cell, the lithium cell and lug pad are wrapped in by the barrier film Together；

Ultra-fine volume pin, the ultra-fine volume pin are used to, when barrier film wraps up cell polar ear and lithium cell, make barrier film and cell polar ear, lithium Wrapped up between battery core close.
2. small polymer lithium ion battery according to claim 1, it is characterised in that the lug pad is copper material Matter, the lug pad are square structure, are connected by the positive pole and negative pole of power line and lithium cell.
3. small polymer lithium ion battery according to claim 1, it is characterised in that the barrier film is flexible insulation material Matter.
4. small polymer lithium ion battery according to claim 1, it is characterised in that the lithium cell sets a variety of rows Row mode, by the difference of arrangement mode, reduce the apparent size of battery.
5. small polymer lithium ion battery according to claim 1, it is characterised in that the insulating outer layer is plastic cement material Matter.