发明名称 |
PROCESS FOR MAKING ELECTRODES FOR LITHIUM BASED ELECTROCHEMICAL CELLS |
摘要 |
A process for making an electrode sheet for lithium electrochemical cells is disclosed. The process comprises the steps of : a) admixing a polyether polymer or copolymer soluble in water, at least one lithium salt, at least one electrochemically active material and water to form a water-based solution/suspension containing by weight at least 20% active electrode material, at least 5 % of a polyether polymer or copolymer, and at least 1.5 % lithium salt; b) coating the water-based solution/suspension in the form of an electrode thin film onto an electrode support; and, c) drying the electrode thin film to obtain an electrode thin sheet having less than 1000ppm of residual water. The electrode thin sheet thereby formed has less than 10% porosity after drying. The drying step is preferably carried out through a dryer/oven tunnel having incremental drying zones. |
申请公布号 |
WO2009109053(A1) |
申请公布日期 |
2009.09.11 |
申请号 |
WO2009CA00294 |
申请日期 |
2009.03.06 |
申请人 |
BATHIUM CANADA INC.;LEBLANC, PATRICK;COTTON, FREDERIC;LESSARD, DAVE;VALLEE, ALAIN |
发明人 |
LEBLANC, PATRICK;COTTON, FREDERIC;LESSARD, DAVE;VALLEE, ALAIN |
分类号 |
H01M4/04;C08J5/22;C08L71/02;H01M4/60 |
主分类号 |
H01M4/04 |
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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