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Lithium-ion battery

A lithium-ion battery and cell technology, applied in secondary batteries, battery pack components, circuits, etc., can solve problems such as user safety hazards, lithium-ion battery explosions, battery short-circuits, etc., to suppress thickness changes and local Deformation, Control Consistency Effects

Inactive Publication Date: 2009-10-21
深圳市普天通数码实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

The disadvantage of existing lithium-ion batteries is that they will be deformed during use. The deformation of the lithium-ion battery will cause a short circuit of the battery. pose serious safety hazards

Method used

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Examples

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Embodiment Construction

[0028] see Figure 1 to Figure 3 , a lithium ion battery, has a shell 1 and an electrolyte 10 coated in the shell and an electric core, the electric core is composed of three single battery cells 2 connected in parallel, and the single electric core is composed of three composite The composite body is formed by winding the body 5. The composite body is formed by laminating and pressing the positive electrode sheet 6, the separator paper 8 and the negative electrode sheet 7. The separator paper 8 has an adhesive layer 9 on both sides, and the adhesive layer is made of polyester Carboxytetrafluoroethylene is used as the preparation material, and the thickness of the bonding layer is 5 microns.

[0029] The positive electrode sheet is made of aluminum foil or aluminum mesh, one or both sides of the aluminum foil or aluminum mesh are coated with positive electrode active material, and the positive electrode sheet has a positive electrode ear 3 .

[0030] The positive active mater...

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Abstract

The invention discloses a lithium-ion battery which is provided with a shell and an electrolyte and an electric core that are wrapped in the shell; the electric core consists of one or more monomer cores; the monomer core consists of two or more complexes; the complex is prepared by the superposed arrangement and pressing of a positive plate, a diaphragm paper and a negative plate; two sides of the diaphragm paper are provided with a bonding layer respectively; and the bonding layer uses polycarboxylic tetrafluoroethylene or polyvinylidene fluoride as preparation material. The lithium-ion battery has the advantages of being not easy to deform when in use.

Description

technical field [0001] The invention relates to the field of batteries, in particular to a lithium ion battery. Background technique [0002] Due to the advantages of high voltage, large specific energy, long cycle life, fast charging and discharging, and high operating temperature range, lithium-ion batteries are more and more widely used in people's daily life and national defense. [0003] The structure of a general lithium-ion battery is: the battery case is covered with a cell and an organic electrolyte, and the cell is composed of a positive electrode, a separator, and a negative electrode. The disadvantage of existing lithium-ion batteries is that they will be deformed during use. The deformation of the lithium-ion battery will cause a short circuit of the battery. pose serious safety hazards. Contents of the invention [0004] In order to solve the above problems, the object of the present invention is to provide a lithium-ion battery that is not easily deformed ...

Claims

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Application Information

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IPC IPC(8): H01M10/36H01M10/40H01M10/38H01M2/00H01M50/102
CPCY02E60/122Y02E60/10Y02P70/50
Inventor 黄玉龙梁百胜
Owner 深圳市普天通数码实业有限公司
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