发明名称 |
NEGATIVE ELECTRODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY COMPRISING SAME |
摘要 |
Provided is a negative active material and a lithium secondary battery including the negative active material. The negative active material for a secondary battery includes silicon particles, wherein circularities of the particles are determined by equation 1 below, and the circularities are 0.5 or greater and 0.9 or less, Circularity = 2 pi × A 1 / 2 / P (where A denotes a projected area of the silicon particle that is two-dimensionally projected, and P denotes a circumferential length of the silicon particle that is two-dimensionally projected). |
申请公布号 |
EP3136474(A1) |
申请公布日期 |
2017.03.01 |
申请号 |
EP20150782943 |
申请日期 |
2015.04.22 |
申请人 |
Orange Power Ltd. |
发明人 |
CHO, Young Tai;PARK, Seoung Chul;PARK, Seon;SEO, Hee Young;PARK, Jee Hye;LEE, Yong Eui;KIM, Chul Hwan |
分类号 |
H01M4/134;H01M4/38;H01M10/052 |
主分类号 |
H01M4/134 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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