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Paste mixing process of lithium titanate battery

A lithium titanate battery and process technology, applied in the direction of battery electrodes, circuits, electrical components, etc., can solve the problems of restricting the use of lithium titanate batteries, imperfect paste technology, and failure to effectively remove battery gas, etc., to solve the problem of battery Gas production problem and the effect of improving battery performance

Inactive Publication Date: 2013-09-04
NANJING SHUANGDENG SCI TECH DEV RES INST
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, the current disadvantage of lithium titanate batteries is that it is easy to produce gas during the cycle process, which restricts the use of lithium titanate batteries. gas produced in

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] 1. Add activated carbon to the negative electrode and paste

[0009] When making a lithium titanate battery, add activated carbon accounting for 10% of the mass of the negative electrode active material to the negative electrode and paste, use lithium iron phosphate as the positive electrode active material, and use lithium titanate as the negative electrode active material. Formation, testing.

[0010] After testing, the rate performance of the lithium titanate battery doped with carbon in the negative electrode remains unchanged, the low-temperature performance is improved, the battery does not produce gas after 300 cycles, and the capacity does not decay, and there is an upward trend within 2%.

[0011] 2. Add activated carbon to the positive electrode and paste

[0012] When making a lithium titanate battery, add activated carbon accounting for 10% of the mass of the positive active material to the positive electrode and the paste. The positive acti...

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PUM

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Abstract

The invention provides a paste mixing process of a lithium titanate battery, and relates to a manufacturing method of the lithium titanate battery. According to the technical scheme, activated carbon which is 2-20% by mass of active substances is doped into the active substances in a paste mixing process, the activated carbon can be doped only in the paste mixing process for an anode, the activated carbon can also be doped only in the paste mixing process for a cathode, or the activated carbon can be respectively doped in the paste mixing processes for both the anode and the cathode. According to the paste mixing process provided by the invention, the activated carbon material can absorb the gas generated in a circulating process of the lithium titanate battery by virtue of a porous structure, the problem of gas generation of the battery is effectively solved and the application performance of the battery is improved.

Description

technical field [0001] The invention relates to a manufacturing method of a lithium titanate battery, in particular to a paste mixing process for a lithium titanate battery. Background technique [0002] Lithium titanate battery has the advantages of long cycle life, good safety performance, stable performance, high-rate charge and discharge, etc., which are favored by the industry, and are widely used in energy storage power supply, power lithium battery and other fields. However, the current disadvantage of lithium titanate batteries is that it is easy to produce gas during the cycle process, which restricts the use of lithium titanate batteries. gas produced in. Contents of the invention [0003] The object of the present invention is to overcome the deficiencies of the prior art, and provide a lithium titanate battery paste process that can effectively solve the problem of battery gas production and improve battery performance. [0004] The technical solution of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/1391H01M4/62
CPCY02E60/10
Inventor 杨丛利
Owner NANJING SHUANGDENG SCI TECH DEV RES INST
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