NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM BATTERY

Title:

NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM BATTERY

Document Type and Number:

Japanese Patent JP2017027859

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide a negative electrode active material for a lithium battery capable of suppressing breakage caused by expansion/contraction at a time of cycle while maintaining high capacity.SOLUTION: The negative electrode active material includes: a crystal phase having a composition of LiAlSnPO(x+y+z+w=1, 0.10≤x≤0.30, 0.05≤y≤0.31, 0.20≤z≤0.40, 0.31≤w≤0.53, 1.3≤δ≤2.7), where SnPOis the main phase; and a glass phase composed of Li-Al-Sn-P-O.SELECTED DRAWING: Figure 1

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Inventors:

YADA CHIHIRO
BRIAN ELLIOTT HAYDEN
CHRISTOPHER EDWARD LEE
LAURA PERKINS

Application Number:

JP2015147113A

Publication Date:

February 02, 2017

Filing Date:

July 24, 2015

Export Citation:

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Assignee:

TOYOTA MOTOR CORP

International Classes:

H01M4/58; C01B25/42; H01M4/36

Attorney, Agent or Firm:

Noriyuki Yamamoto
Akihiko Yamashita
Kishimoto Tatsuto

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