シリコン系複合材料、負極及びリチウムイオン電池並びに製造方法

Title:

シリコン系複合材料、負極及びリチウムイオン電池並びに製造方法

Document Type and Number:

Japanese Patent JP7455870

Kind Code:

B2

Abstract:

The present disclosure relates to a porous nano-silicon-based composite material, an anode and a lithium ion battery and a preparation method thereof. The silicon-based composite material comprises nano active particles and graphite, and the nano active particles comprise porous nano-silicon; The graphite has a pore structure in which the nano active particles are embedded, and/or the graphite has a layered structure in which the nano active particles are embedded; Compared with the traditional carbon-coated silicon anode material, the silicon-based anode material prepared by the present disclosure has the advantage of lower expansion rate and thus improves cycle performance.

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Inventors:

What Peng
Xiao Sungmao
Founding country
ga snow harp

Application Number:

JP2021574340A

Publication Date:

March 26, 2024

Filing Date:

April 21, 2021

Export Citation:

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Assignee:

BTR NEW MATERIAL GROUP CO., LTD.

International Classes:

H01M4/38; B82Y30/00; B82Y40/00; C01B33/02; H01M4/36; H01M4/587

Domestic Patent References:

JP2015118911A
JP2014167901A
JP2013253012A
JP3827642B2

Foreign References:

CN109638269A
CN110400930A
US20170162868

Attorney, Agent or Firm:

Saegusa International Patent Office

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