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Efficient battery with three-layer electrode structure

An electrode structure and battery technology, applied in the fields of electricity and electronics, can solve the problems of low utilization rate of positive electrode materials, insufficient battery energy density, and inability to meet the needs of electric vehicles.

Inactive Publication Date: 2018-08-31
孙备宽
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The current ion battery is generally made of positive electrode, electrolyte, separator, and negative electrode laminated winding. This method has an obvious disadvantage, that is, the utilization rate of the positive electrode material is not high, resulting in insufficient energy density of the battery, which cannot meet the needs of electric vehicles. need

Method used

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  • Efficient battery with three-layer electrode structure

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example 1

[0025] Such as figure 1 As shown, a high-efficiency lithium-ion battery with a three-layer electrode structure is composed of a negative electrode 1, a separator 1, a positive electrode, a separator 2, a negative electrode 2, and an electrolyte between the positive and negative electrodes. Negative electrode 1 and negative electrode 2 are connected to the negative electrode of the shell at the same time when the battery core is packaged. When the battery is working, when the same discharge current is required, compared with the traditional battery structure, the working area between the internal electrodes is doubled, the internal current will be doubled, and the heat generation and internal resistance will be doubled, so that The battery works more stably.

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Abstract

The invention aims at providing a novel battery structure. Laminated winding of anodes, electrolytes, partition membranes and cathodes is usually adopted in preparation of current ion batteries, and this mode has an obvious defect that the utilization rate of anode materials is not high, and correspondingly the density of battery energy is not high enough, so that the demand of electric cars cannot be met. It can be shown by a principle of a battery that by increasing the effective reaction area of electrodes and reducing internal resistance of the battery, the battery performance index can beeffectively upgraded. The utilization rate of the electrodes is increased, the internal resistance of the battery is lowered, and compared with a battery structure of a traditional mode, the batterystructure remarkably improves the performance of the battery.

Description

technical field [0001] The invention relates to the fields of electric power and electronics, and is a high power density and energy density secondary battery with three layers of electrodes. Background technique [0002] A battery (Battery) refers to a cup, tank or other container or part of a composite container filled with an electrolyte solution and a metal electrode to generate an electric current, and a device that can convert chemical energy into electrical energy. The performance parameters of the battery mainly include electromotive force, capacity, specific energy and internal resistance. In a chemical battery, the direct conversion of chemical energy into electrical energy is the result of spontaneous chemical reactions such as oxidation and reduction inside the battery, which are carried out on the two electrodes respectively. The negative electrode active material is composed of reducing agents with relatively negative potential and stable in the electrolyte, s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0587
CPCH01M10/0587Y02E60/10Y02P70/50
Inventor 孙备宽
Owner 孙备宽
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