Title:
NEGATIVE ELECTRODE MATERIAL FOR LITHIUM BATTERY, NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM BATTERY
Document Type and Number:
Japanese Patent JP2011175842
Kind Code:
A
Abstract:
To provide a lithium secondary battery causing little characteristic degradation in high electrode density and having discharge load characteristics, charging/discharging efficiency, and high battery capacity, and to provide a negative electrode for lithium secondary battery and negative electrode material for lithium secondary battery in order to obtain the same.
The negative electrode material for lithium secondary has a circularity of ≥0.85 and ≤0.90 which is obtained by dividing a length of circumference of a circle derived from a quasi-circle diameter by a length of circumference for a particle image, with a perfect circle set as 1.00.
Inventors:
SUZUKI KIYOSHI
TAKAHASHI TEPPEI
KATAYAMA KOICHI
MASAYOSHI KENJI
TAKAHASHI TEPPEI
KATAYAMA KOICHI
MASAYOSHI KENJI
Application Number:
JP2010038724A
Publication Date:
September 08, 2011
Filing Date:
February 24, 2010
Export Citation:
Assignee:
HITACHI CHEMICAL CO LTD
International Classes:
H01M4/587; H01M4/36
Domestic Patent References:
| JP2004127913A | 2004-04-22 | |||
| JP2009238584A | 2009-10-15 | |||
| JP2000226206A | 2000-08-15 |