发明名称 |
NEGATIVE ELECTRODE SLURRY COMPOSITION, LITHIUM ION SECONDARY BATTERY NEGATIVE ELECTRODE, AND LITHIUM ION SECONDARY BATTERY |
摘要 |
Provided is a negative electrode slurry composition including a binder resin, a water-soluble polymer, and a negative electrode active material, wherein the binder resin including (A) a styrene-butadiene copolymer latex having a gel amount of 70 to 98% and having a glass transition temperature in dynamic viscoelasticity measurement with a single peak at −30° C. to 60° C. and (B) a polymer latex formed of a hetero-phase structure having a glass transition temperature in dynamic viscoelasticity measurement with at least one peak at −100° C. to 10° C. and having a glass transition temperature in dynamic viscoelasticity measurement with at least one peak at 10° C. to 100° C., and the negative electrode active material including a carbon-based active material and a silicon-based active material. |
申请公布号 |
US2015132644(A1) |
申请公布日期 |
2015.05.14 |
申请号 |
US201314397665 |
申请日期 |
2013.06.06 |
申请人 |
ZEON CORPORATION |
发明人 |
Sonobe Kenya;Takahashi Naoki;Yamamoto Norikazu;Adachi Yusuke |
分类号 |
H01M4/36;H01M4/133;H01M4/134;H01M4/62 |
主分类号 |
H01M4/36 |
代理机构 |
|
代理人 |
|
主权项 |
1. A negative electrode slurry composition comprising a binder resin, a water-soluble polymer, and a negative electrode active material,
wherein the binder resin comprising (A) a styrene-butadiene copolymer latex having a gel amount of 70 to 98% and having a glass transition temperature in dynamic viscoelasticity measurement with a single peak at −30° C. to 60° C. and (B) a polymer latex formed of a hetero-phase structure having a glass transition temperature in dynamic viscoelasticity measurement with at least one peak at −100° C. to 10° C. and having a glass transition temperature in dynamic viscoelasticity measurement with at least one peak at 10° C. to 100° C., and the negative electrode active material comprising a carbon-based active material and a silicon-based active material. |
地址 |
Chiyoda-ku, Tokyo JP |