ELECTRONICALLY CONDUCTIVE POLYMER BINDER FOR LITHIUM-ION BATTERY ELECTRODE
申请人:The Regents of the University of California
公开号:US20130288126A1
公开(公告)日:2013-10-31
A family of carboxylic acid groups containing fluorene/fluorenon copolymers is disclosed as binders of silicon particles in the fabrication of negative electrodes for use with lithium ion batteries. Triethyleneoxide side chains provide improved adhesion to materials such as, graphite, silicon, silicon alloy, tin, tin alloy. These binders enable the use of silicon as an electrode material as they significantly improve the cycle-ability of silicon by preventing electrode degradation over time. In particular, these polymers, which become conductive on first charge, bind to the silicon particles of the electrode, are flexible so as to better accommodate the expansion and contraction of the electrode during charge/discharge, and being conductive promote the flow battery current.
Electronically conductive polymer binder for lithium-ion battery electrode
申请人:Liu Gao
公开号:US10170765B2
公开(公告)日:2019-01-01
A family of carboxylic acid groups containing fluorene/fluorenon copolymers is disclosed as binders of silicon particles in the fabrication of negative electrodes for use with lithium ion batteries. Triethyleneoxide side chains provide improved adhesion to materials such as, graphite, silicon, silicon alloy, tin, tin alloy. These binders enable the use of silicon as an electrode material as they significantly improve the cycle-ability of silicon by preventing electrode degradation over time. In particular, these polymers, which become conductive on first charge, bind to the silicon particles of the electrode, are flexible so as to better accommodate the expansion and contraction of the electrode during charge/discharge, and being conductive promote the flow battery current.
Electroactive fluorene copolymers and devices made with such polymers
申请人:Uckert P. Frank
公开号:US20050049388A1
公开(公告)日:2005-03-03
The present invention is generally directed to copolymers of fluorene. It further relates to devices that are made with the copolymers.
本发明一般涉及芴的共聚物。本发明还涉及使用这些共聚物制造的设备。
Substitution effect on the regioselective halogen/metal exchange of 3-substituted 1,2,5-tribromobenzenes
作者:Karsten Menzel、Paul M. Mills、Doug E. Frantz、Todd D. Nelson、Michael H. Kress
DOI:10.1016/j.tetlet.2007.11.124
日期:2008.1
Regioselective halogen/nietal exchange reactions using isopropylmagnesium chloride were studied on 3-substituted 1,2,5-tribromoarenes. Seven examples are given. (C) 2007 Published by Elsevier Ltd.