Electrode mixture, electrode, and lithium secondary battery

An electrode and mixture technology, which is applied to lithium batteries, non-aqueous electrolyte batteries, battery electrodes, etc., can solve the problems of lower yield, falling off, or a part of the electrode mixture layer detaching from the collector and floating.
CN102763245AInactive Publication Date: 2012-10-31SUMITOMO CHEM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SUMITOMO CHEM CO LTD
Publication Date
2012-10-31
Estimated Expiration
Not applicable · inactive patent

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Abstract

Provided is an electrode mixture that contains: a lithium composite metal oxide with a BET specific surface area between 2 and 30 m / g; a water-soluble macromolecule that has an acid functional group; water; and a conductor. Also provided is an electrode manufactured by coating a collector with the provided electrode mixture and drying the coated collector. Further provided is a lithium secondary battery, the positive electrode of which is the provided electrode.
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Description

technical field

[0001] The invention relates to an electrode mixture, an electrode and a lithium secondary battery. Background technique

[0002] Lithium secondary batteries are already in practical use as power sources for mobile phones, notebook computers, and the like, and are also being applied to medium and large-scale applications such as automotive applications and power storage applications.

[0003] A lithium secondary battery generally includes a positive electrode containing a positive electrode active material capable of being doped and dedoped with lithium ions, a negative electrode containing a negative electrode active material capable of being doped and dedoped with lithium ions, and an electrolyte.

[0004] Electrodes such as positive pole and negative pole are prepared as follows, that is, electrode mixture is obtained by mixing and kneading electrode active materials such as positive electrode active material and negative electrode active material and bind...

Claims

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