H - Electricity – 01 – M
Patent
H - Electricity
01
M
H01M 4/40 (2006.01) C22C 24/00 (2006.01) H01M 4/02 (2006.01)
Patent
CA 2143047
An alloy for a negative electrode of a lithium secondary battery, comprising an Li-Ag-Te type alloy having an atomic ratio of Li:Ag:Te=15-120:1-20:0.001-2, an alloy for a negative electrode of a lithium secondary battery, comprising an Li-Ag- Te-(M1-M2) type alloy having an atomic ratio of Li:Ag:Te:M1: M2=15-120:1-20:0.001-2:1-50:1-30 wherein M1 is a 3B-5B group metal and M2 is a transition metal other than Ag, and a lithium secondary battery comprising a negative electrode composed of the above-mentioned alloy. According to the present invention, a negative electrode, wherein the growth of dendrite is suppressed, charge-discharge capacity is high, energy density is high and degradation due to repetitive charge-discharge is less, can be obtained. By the use of the negative electrode obtained in the present invention, moreover, a lithium secondary battery superior in charge-discharge cycle life, which has high energy density permitting long-term use, high electromotive force and high charge-discharge capacity, can be produced.
Marumoto Mitsuhiro
Sasaki Kouzou
Takada Yoshinori
Fetherstonhaugh & Co.
Mitsubishi Cable Industries Ltd.
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