发明申请
- 专利标题: APPLICATION OF FORCE IN ELECTROCHEMICAL CELLS
- 专利标题(中): 力在电化学电池中的应用
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申请号: US12535328申请日: 2009-08-04
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公开(公告)号: US20100035128A1公开(公告)日: 2010-02-11
- 发明人: Chariclea Scordilis-Kelley , John D. Affinito , Lowell D. Jones , Yuriy V. Mikhaylik , Igor Kovalev , William F. Wilkening , Christopher T.S. Campbell , John A. Martens
- 申请人: Chariclea Scordilis-Kelley , John D. Affinito , Lowell D. Jones , Yuriy V. Mikhaylik , Igor Kovalev , William F. Wilkening , Christopher T.S. Campbell , John A. Martens
- 申请人地址: US AZ Tucson
- 专利权人: Sion Power Corporation
- 当前专利权人: Sion Power Corporation
- 当前专利权人地址: US AZ Tucson
- 主分类号: H01M4/58
- IPC分类号: H01M4/58 ; H01M2/02 ; H01M10/42 ; H01M6/42
摘要:
The present invention relates to the application of a force to enhance the performance of an electrochemical cell. The force may comprise, in some instances, an anisotropic force with a component normal to an active surface of the anode of the electrochemical cell. In the embodiments described herein, electrochemical cells (e.g., rechargeable batteries) may undergo a charge/discharge cycle involving deposition of metal (e.g., lithium metal) on a surface of the anode upon charging and reaction of the metal on the anode surface, wherein the metal diffuses from the anode surface, upon discharging. The uniformity with which the metal is deposited on the anode may affect cell performance. For example, when lithium metal is redeposited on an anode, it may, in some cases, deposit unevenly forming a rough surface. The roughened surface may increase the amount of lithium metal available for undesired chemical reactions which may result in decreased cycling lifetime and/or poor cell performance. The application of force to the electrochemical cell has been found, in accordance with the invention, to reduce such behavior and to improve the cycling lifetime and/or performance of the cell.
公开/授权文献
- US09105938B2 Application of force in electrochemical cells 公开/授权日:2015-08-11