发明名称 |
Forming gas treatment of lithium ion battery anode graphite powders |
摘要 |
The invention provides a method of making a battery anode in which a quantity of graphite powder is provided. The temperature of the graphite powder is raised from a starting temperature to a first temperature between 1000 and 2000° C. during a first heating period. The graphite powder is then cooled to a final temperature during a cool down period. The graphite powder is contacted with a forming gas during at least one of the first heating period and the cool down period. The forming gas includes H2 and an inert gas. |
申请公布号 |
US8834829(B2) |
申请公布日期 |
2014.09.16 |
申请号 |
US201213596291 |
申请日期 |
2012.08.28 |
申请人 |
UT-Battelle, LLC |
发明人 |
Contescu Cristian Ion;Gallego Nidia C.;Howe Jane Y.;Meyer, III Harry M.;Payzant Edward Andrew;Wood, III David L.;Yoon Sang Young;Denlinger Matthew R. |
分类号 |
H01M4/1393;H01M4/133;B05D5/12 |
主分类号 |
H01M4/1393 |
代理机构 |
Novak Druce Connolly Bove + Quigg LLP |
代理人 |
Novak Druce Connolly Bove + Quigg LLP |
主权项 |
1. A method of making a battery anode, comprising the steps of:
providing a quantity of graphite powder; raising the temperature of the graphite powder from a starting temperature to a first temperature between 1000 and 2000° C., during a first heating period; cooling the graphite powder to a final temperature during a cool down period; contacting the graphite powder with a forming gas during at least one of the first heating period and the cool down period, the forming gas comprising H2 and an inert gas, wherein the forming gas comprises 4-10% H2, by volume. |
地址 |
Oak Ridge TN US |