Method for cladding surfaces of active material of anode and/or anode and methods manufacturing anode and battery

A positive electrode active material and surface coating technology, which is applied to the surface coating of positive electrode active materials and/or positive electrodes and the preparation of positive electrodes and batteries, can solve the problems of difficult control of the thickness and uniformity of the coating layer, and achieve Uniform and complete coverage, low shape requirements, high specific capacity and specific energy
CN102244231AInactive Publication Date: 2011-11-16INST OF PHYSICS - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF PHYSICS - CHINESE ACAD OF SCI
Publication Date
2011-11-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a method for cladding surfaces of an active material of an anode and / or the anode and methods for manufacturing the anode and a battery. In the cladding method, an atomic layer deposition technology is adopted to deposit surface modification substances on the surfaces of the active material of the anode and / or the anode of a lithium battery. According to the invention, the cycle performance and the specific capacity of the lithium-ion battery can be improved obviously and electrode materials are more stable.
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Description

Technical field

[0001] The present invention relates to a method for surface coating a positive electrode active material and / or a positive electrode of a lithium battery and a preparation method of the positive electrode and a battery, and more specifically to a method for performing atomic absorption on the positive electrode active material and / or positive electrode surface of a lithium battery. A method for layer modification, a positive electrode preparation method and a battery preparation method including the modification method. Background technique

[0002] Lithium-ion batteries have been widely used in mobile phones, digital cameras, notebook computers and other digital products and electric bicycles since their commercialization in the past 20 years, and they play an important role in people's daily lives. Due to its high power density, high energy density and high cycle capability, lithium batteries have become the most recognized battery of choice for electric vehicl...

Claims

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