Method for manufacturing a multi-layered thin film for use...

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode

Reexamination Certificate

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Details

C429S219000, C204S192120, C204S192150, C204S192170, C204S192230

Reexamination Certificate

active

10997882

ABSTRACT:
A thin film for an anode of a lithium secondary battery having a current collector and an anode active material layer formed thereon is provided. The anode active material layer is a multi-layered thin film formed by stacking a silver (Ag) layer and a silicon-metal (Si-M) layer having silicon dispersed in a base made from metal reacting with silicon while not reacting with lithium. The cycle characteristic of the thin film for an anode can be improved by suppressing the volumetric expansion and shrinkage of Si occurring during charging/discharging cycles. Thus, a lithium secondary battery with improved life characteristics by employing the thin film for an anode, which greatly improves the chemical, mechanical stability of the interface between an electrode and an electrolyte.

REFERENCES:
patent: 6235427 (2001-05-01), Idota et al.
patent: 2002/0048705 (2002-04-01), Park et al.
patent: 0 690 517 (1996-01-01), None
patent: 0 855 752 (1998-07-01), None
patent: 1 028 476 (2000-08-01), None
patent: 1 033 767 (2000-09-01), None
patent: 1 207 566 (2002-05-01), None
patent: 01/52337 (2001-07-01), None

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