Title:
非水電解質二次電池用負極活物質、負極及び非水電解質二次電池
Document Type and Number:
Japanese Patent JP7369978
Kind Code:
B2
Abstract:
In the present invention, negative electrode active material particles for a nonaqueous electrolyte secondary battery which can suppress decrease of charging and discharging cycle characteristics, are each provided with: a composite particle that includes a silicate phase and silicon particles dispersed in the silicate phase; and a surface layer that covers the composite particle, wherein the surface layer includes a fluorine resin.
Inventors:
Keita Okazaki
Itaru Yamamoto
Itaru Yamamoto
Application Number:
JP2020553274A
Publication Date:
October 27, 2023
Filing Date:
October 17, 2019
Export Citation:
Assignee:
Panasonic IP Management Co., Ltd.
International Classes:
H01M4/131; H01M4/38; H01M4/134; H01M4/36; H01M4/58; H01M4/62
Domestic Patent References:
| JP2015149221A | ||||
| JP2015111547A | ||||
| JP2015156328A | ||||
| JP201797952A |
Foreign References:
| WO2015107581A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation YKI International Patent Office