SILICON-CONTAINING ALLOYS USEFUL AS ELECTRODES FOR LITHIUM-ION BATTERIES,申请号WO2006US62305-传众专利搜索

SILICON-CONTAINING ALLOYS USEFUL AS ELECTRODES FOR LITHIUM-ION BATTERIES

申请公布号：WO2007120347(A2)

申请号：WO2006US62305

申请日期：2006.12.19

申请公布日期：2007.10.25

申请人：

3M INNOVATIVE PROPERTIES COMPANY

发明人：LE, DINH BA

分类号：H01M4/134;H01M10/0525;H01M10/0569;H01M10/36

主分类号：H01M4/134

摘要：An electrode composition for a lithium ion battery having the formula SixSnqMyCz where q, x, y, and z represent atomic percent values and (a) (q + x) > 2y + z; (b) q = 0, (c) z =0; and (d) M is one or more metals selected from manganese, molybdenum, niobium, tungsten, tantalum, iron, copper, titanium, vanadium, chromium, nickel, cobalt, zirconium, yttrium, or a combination thereof. The Si, Sn, M, and C elements are arranged in the form of a multi-phase microstructure comprising: (a) an amorphous phase comprising silicon; (b) a nanocrystalline phase comprising a metal suicide; and (c) a phase comprising silicon carbide phase when z > 0; and (d) an amorphous phase comprising Sn when q > 0.