Invention Grant
- Patent Title: Cathode composite material synthesis having high energy density for lithium secondary battery for electric vehicle and electrode manufacturing technology thereof
- Patent Title (中): 用于电动车辆的锂二次电池的高能量密度的阴极复合材料合成及其电极制造技术
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Application No.: US14353279Application Date: 2012-10-19
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Publication No.: US09478993B2Publication Date: 2016-10-25
- Inventor: Ho Sung Kim , Ju Hee Kang , Ik Hyun Oh , Seong Jae Boo , Duck Rye Chang , Tae Won Kim , Sung Hee Park , Kyeong Wan Kim
- Applicant: Korea Institute of Industrial Technology
- Applicant Address: KR Cheonan-si
- Assignee: Korea Institute of Industrial Technology
- Current Assignee: Korea Institute of Industrial Technology
- Current Assignee Address: KR Cheonan-si
- Agency: Alleman Hall McCoy Russell & Tuttle LLP
- Priority: KR10-2011-0108159 20111021; KR10-2012-0019666 20120227
- International Application: PCT/KR2012/008613 WO 20121019
- International Announcement: WO2013/058604 WO 20130425
- Main IPC: H02J7/00
- IPC: H02J7/00 ; H01M4/505 ; H01M4/525 ; C01D15/02 ; H01M4/04 ; H01M10/052
Abstract:
The present invention relates to the manufacture of a high capacity electrode by synthesizing an excellent Li2MnO3-based composite material Li(LixNiyCozMnwO2) to improve the characteristics of an inactive Li2MnO3 material with a specific capacity of about 460 mAh/g. Here, a manufacturing method of a cathode material for a lithium secondary battery uses a Li2MnO3-based composite material Li(LixNiyCozMnwO2) by reacting a starting material wherein a nickel nitrate solution, a manganese nitrate solution and a cobalt nitrate solution are mixed, with a complex agent by co-precipitation.
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