| 摘要 |
An electrode composition for a lithium ion battery having the formula Si<SUB>x</SUB>Sn<SUB>q</SUB>M<SUB>y</SUB>C<SUB>z</SUB> 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. |
