Title:
LITHIUM IRON COMPOSITE OXIDE, POSITIVE ELECTRODE MATERIAL, POSITIVE ELECTRODE, AND LITHIUM ION SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2022/149611
Kind Code:
A1
Abstract:
This lithium iron composite oxide is represented by Li5FeO4, and has a quadrupolar splitting (QS) that is obtained by an analysis using 57Fe Mossbauer spectroscopy and that includes two peaks different from each other. Peak A, which is one of the two peaks, satisfies QS>0, and peak B, which is the other of the two peaks, satisfies QS=0.
Inventors:
HASEGAWA TOMOHIKO (JP)
SATO KOSUKE (JP)
KARISYUKU HIROKI (JP)
MORI TAKASHI (JP)
SATO KOSUKE (JP)
KARISYUKU HIROKI (JP)
MORI TAKASHI (JP)
Application Number:
PCT/JP2022/000359
Publication Date:
July 14, 2022
Filing Date:
January 07, 2022
Export Citation:
Assignee:
TDK CORP (JP)
International Classes:
H01M4/13; C01G49/00; H01M4/36; H01M4/485; H01M4/505; H01M4/525; H01M4/62
Domestic Patent References:
| WO2020202844A1 | 2020-10-08 | |||
| WO2020090591A1 | 2020-05-07 |
Foreign References:
| JP2018185906A | 2018-11-22 | |||
| JP2020050554A | 2020-04-02 | |||
| JP2020053314A | 2020-04-02 |
Attorney, Agent or Firm:
OIKAWA Shu et al. (JP)
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