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Battery and electronic product

A technology of batteries and batteries, which is applied in the field of batteries and electronic products, can solve the problems of low energy density of batteries, and achieve the effects of miniaturization, reduced use, and reduced thickness

Pending Publication Date: 2021-12-07
ZHUHAI COSMX BATTERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problem of low energy density of traditional batteries

Method used

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  • Battery and electronic product
  • Battery and electronic product
  • Battery and electronic product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] combine figure 1 As shown, the present embodiment provides a battery with a first structure, the battery of this structure includes at least one set of battery cells, each battery cell includes a positive electrode sheet, a negative electrode sheet, and a first separator between the positive electrode sheet and the negative electrode sheet 3; Wherein, the positive pole piece is a traditional pole piece, and the negative pole piece is a new type pole piece, that is, the positive pole piece includes a foil material 7 as a positive electrode current collector, and positive electrode active material layers 1 arranged on the surfaces of both sides of the foil material 7 . The negative electrode sheet includes a second separator 4 and a negative active material layer 2 continuously disposed between the first separator 3 and the second separator 4 , and the second separator 4 in this embodiment is compounded on one side of the negative active material layer 2 . However, the fi...

Embodiment 2

[0046] combine image 3 As shown, the present embodiment provides a battery with a second structure, the battery of this structure includes at least one set of battery cells, and each battery cell includes a positive electrode sheet and a negative electrode sheet; wherein, the positive electrode sheet is a traditional electrode sheet, and the negative electrode sheet is The new pole piece, that is, the positive pole piece includes a foil 7 and a positive electrode active material layer 1 arranged on both sides of the foil 7, and the negative pole piece includes a first diaphragm 3, a second diaphragm 4, and a layer continuously arranged on the first diaphragm 3 and the The negative electrode active material layer 2 between the second separators 4 , and the second separator 4 is compounded on one side of the negative electrode active material layer 2 , and the first separator 3 is compounded on the other side of the negative electrode active material layer 2 . When the positive...

Embodiment 3

[0059] combine Figure 5 As shown, the present embodiment provides a battery with a third structure. The battery of this structure includes at least one set of battery cells, and each battery cell includes a positive electrode sheet and a negative electrode sheet; wherein, the positive electrode sheet and the negative electrode sheet are all new electrode sheets , that is, the positive electrode sheet includes a positive electrode active material layer 1, and the positive electrode active material layer 1 is continuously arranged between the first separator 3 and the second separator 4, and the negative electrode sheet includes the second separator 4 and is continuously arranged between the first separator 3 and the second separator. The negative electrode active material layer 2 between the separators 4; specifically, the first separator 3 is compounded on the surface of the positive electrode active material layer 1, and the second separator 4 is compounded on the surface of ...

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Abstract

The invention provides a battery and an electronic product, the battery comprises at least one group of battery cell unit, each battery cell unit comprises a first pole piece, a second pole piece and a first diaphragm arranged between the first pole piece and the second pole piece, the polarity of the first pole pieces is opposite to that of the second pole pieces, first tabs and second tabs are respectively arranged on the first pole pieces and the second pole pieces and and each second pole piece comprises a second diaphragm and a second active substance layer which is continuously arranged between the first diaphragm and the second diaphragm. The continuous positive active material layer and / or negative active material layer are / is arranged between the diaphragms, so that the proportion of the metal current collector in the battery cell and the quantity of single-layer diaphragms in the battery cell are reduced, the thickness of the battery cell can be reduced, and the energy density of the battery cell is improved.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a battery and an electronic product. Background technique [0002] With the development of science and technology, more and more electronic products have entered people's lives, and a large part of electronic products are driven by batteries. Among them, lithium-ion batteries are widely used in electronic products in various fields because of their advantages such as long service life and high energy density. [0003] Generally speaking, the cell of a traditional lithium-ion battery is mainly composed of a positive electrode sheet, a negative electrode sheet, and a separator. The fluid and the negative electrode coating coated on the surface of the negative electrode current collector are important components. The main function of the separator is to separate the positive and negative electrodes of the battery and prevent the short circuit of the battery caused by the contact ...

Claims

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Application Information

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IPC IPC(8): H01M50/46H01M10/04
CPCH01M50/46H01M10/0413Y02E60/10Y02P70/50
Inventor 张雨单亚平邹浒
Owner ZHUHAI COSMX BATTERY CO LTD