Base unit and battery

A basic unit and battery technology, applied in the manufacture of electrolyte batteries, non-aqueous electrolyte batteries, electrode carriers/current collectors, etc., can solve the problems affecting the life of the battery cells, easy to remove powder, etc., to ensure the service life and enhance the complementarity of characteristics. Effect

Inactive Publication Date: 2016-03-30
LENOVO (BEIJING) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to different material properties (such as expansion coefficients, etc.), after mixing to form electrode materials, it is easy to de-powder during cycling, which seriously affects the battery life.

Method used

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  • Base unit and battery
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  • Base unit and battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A basic unit of a battery provided in Embodiment 1 of the present invention includes a first current collector set, a second current collector set, and a diaphragm, and the first current collector set and the second current collector set are used to collect current;

[0042] The first current collector set is composed of M first current collectors, and each first current collector is provided with a positive electrode material, and a single first current collector is provided with a type of positive electrode material, and the first current collector in the first current collector set is provided with a positive electrode material. There are no more than M types of positive electrode materials provided on a current collector;

[0043] The second current collector set is composed of N second current collectors, and each second current collector is provided with a negative electrode material, and a single first current collector is provided with a type of negative electrod...

Embodiment 2

[0053] Embodiment 2 of the present invention provides a battery, including K basic units, K is a positive integer, each basic unit includes a first current collector set, a second current collector set and a diaphragm, the first current collector set and the second current collector set Fluid collections for pooling electrical currents;

[0054] The first current collector set is composed of M first current collectors, and each first current collector is provided with a positive electrode material, and a single first current collector is provided with a type of positive electrode material, and the first current collector in the first current collector set is provided with a positive electrode material. There are no more than M types of positive electrode materials provided on a current collector;

[0055] The second current collector set is composed of N second current collectors, and each second current collector is provided with a negative electrode material, and a single fi...

Embodiment 3

[0068] A basic unit structure provided by Embodiment 3 of the present invention, such as figure 2 As shown, the basic unit includes a first current collector set, a second current collector set and a diaphragm; wherein,

[0069] The first current collector set is composed of two first current collectors, namely the first current collector 11 and the first current collector 12, the first current collector 11 is coated with positive electrode material 01, and the first current collector 12 is coated with There is positive electrode material 02, positive electrode material 01 and positive electrode material 02 are different types of positive electrode materials, for example: positive electrode material 01 can be selected as a ternary positive electrode material, and positive electrode material 02 can be selected as lithium iron phosphate;

[0070] It should be noted that only one type of positive electrode material is provided on a single first current collector, that is, multip...

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Abstract

The invention discloses a base unit and a battery. The base unit comprises a first current collector set, a second current collector set and diaphragms, and the first current collector set and the second current collector are used for collecting currents; the first current collector set is composed of M first current collectors, each of the first current collectors is provided with a positive electrode material, one first current collector is provided with one type of the positive electrode material, and the quantity of the types of materials arranged on the first current collectors of the first current collector set is not greater than M; the second current collector set is composed of N second current collectors, each of the second current collectors is provided with a negative electrode material, one second current collector is only provided with one type of the negative electrode material, and the quantity of the types of materials arranged on the second current collectors of the second current collector set is not greater than N; the first current collectors and the second current collectors are arranged by rules, and adjacent current collectors are separated by the diaphragms; and the first current collectors are connected to the positive electrode end of the battery, and the second current collectors are connected to the negative electrode end of the battery, wherein M is an integer greater than 1, and / or N is an integer greater than 1.

Description

technical field [0001] The invention relates to the technical field of intelligent electronic equipment, in particular to a basic unit and a battery. Background technique [0002] The basic unit of the current battery such as figure 1 As shown, it includes a first current collector 10, a second current collector 20 and a diaphragm 30, wherein the current collector is used to collect current, the first current collector 10 is coated with a positive electrode material 40, and the first current collector 10 is finally brought together as a The positive electrode of the battery; the negative electrode material 50 is coated on the second current collector 20 , and the second current collector 20 is finally collected together as the negative electrode of the battery, and the separator 30 is used to separate the positive electrode material 40 and the negative electrode material 50 . In the prior art, a large number of the above-mentioned basic units are usually wound or stacked to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/64H01M10/058
CPCY02E60/10Y02P70/50
Inventor 王丽琴阳光李洪伟
Owner LENOVO (BEIJING) LTD
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