US6808849 US 2003064291 A1 20030403 US2003064291 20030403 US 26929302 A 20021011 US 14387199 P 19990715 YES US 26929302 A 20021011 NO US 61620900 A 20000714 NO 3 US 2003064291 A1 20030403 US2003064291 20030403 H01M4/40 B05D5/12 H01M4/62 B05D 5/ 12 A I H01M 4/ 32 A I H01M 4/ 38 A I H01M 4/ 40 A I H01M 4/ 66 A I H01M 4/ 02 A N H01M 4/ 36 A N H01M 4/ 52 A N H01M 4/ 62 A N
H
01 M 4 134 I
H
01 M 4 364 I
H
01 M 4 38 I
H
01 M 4 622 I
H
01 M 4 623 I
H
01 M 4 661 I
H
01 M 4 02 A
H
01 M 10 052 A
H
01 M 2004 021 A
Y
02 E 60 122 A 427/123 427/123 427/191 427/191 427/201 427/201 429/217 429/217 429/218.1 429/223 429/223 429/231.95 429/231.95 429/245 US 26929302 A US20020269293 20021011 10269293 US19990143871P 19990715 09616209 US20020269293 20021011 60143871 US20000616209 20000714 09/616209 60/143871 YARDNEY TECH PROD [US] YARDNEY TECHNICAL PRODUCTS, INC EHRLICH GRANT M [US] EHRLICH GRANT M Negative electrode material for nonaqueous electrochemical cells

A negative electrode material is provided for a rechargeable lithium-ion electrochemical cell comprising an intimate mixture of finely-divided elemental nickel and tin particles characterized in that the total oxygen content of said material is less than about 6 percent by weight of the mixture. Preferably, the negative electrode material comprises from about 5 to 90 percent by weight nickel particles and from about 10 to 95 percent by weight tin particles, the nickel and tin particles being composed of discrete, non-spherical, smooth particles of a size ranging from about 1 to 10 micrometers and having a density which is greater than about 5 grams per milliter and a specific surface area of less than about 1 square meter per gram.

 US 6808849 B2 20041026 US6808849 20041026 US 26929302 A 20021011 US 14387199 P 19990715 YES US 26929302 A 20021011 NO US 61620900 A 20000714 NO 3 US 6808849 B2 20041026 US6808849 20041026 H01M4/32 B05D 5/ 12 A I H01M 4/ 32 A I H01M 4/ 38 A I H01M 4/ 40 A I H01M 4/ 66 A I H01M 4/ 02 A N H01M 4/ 36 A N H01M 4/ 52 A N H01M 4/ 62 A N
H
01 M 4 134 I
H
01 M 4 364 I
H
01 M 4 38 I
H
01 M 4 622 I
H
01 M 4 623 I
H
01 M 4 661 I
H
01 M 4 02 A
H
01 M 10 052 A
H
01 M 2004 021 A
Y
02 E 60 122 A 427/123 427/123 427/191 427/191 427/201 427/201 429/217 429/217 429/218.1 429/223 429/223 429/231.95 429/231.95 429/245 US 26929302 A US20020269293 20021011 10269293 US19990143871P 19990715 09616209 US20020269293 20021011 60143871 US20000616209 20000714 09/616209 60/143871 YARDNEY TECH PROD [US] YARDNEY TECHNICAL PRODUCTS, INC EHRLICH GRANT M [US] EHRLICH GRANT M Negative electrode material for nonaqueous electrochemical cells US6210839 US 6210839 B1 US2002015889 US 2002015889 A1 JPH10334887 JP H10334887 A JPH113710 JP H113710 A

A negative electrode material is provided for a rechargeable lithium-ion electrochemical cell comprising an intimate mixture of finely-divided elemental nickel and tin particles characterized in that the total oxygen content of said material is less than about 6 percent by weight of the mixture. Preferably, the negative electrode material comprises from about 5 to 90 percent by weight nickel particles and from about 10 to 95 percent by weight tin particles, the nickel and tin particles being composed of discrete, non-spherical, smooth particles of a size ranging from about 1 to 10 micrometers and having a density which is greater than about 5 grams per milliter and a specific surface area of less than about 1 square meter per gram.