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US 8,026,003 B2Granted
Negative active material for a non-aqueous electrolyte battery, and a non-aqueous electrolyte battery comprising the same
AssigneeSamsung SDI Co., Ltd.
InventorsSung-Soo Kim, Kyou-Yoon Sheem, Sang-Min Lee, Sang-Jin Kim, Joon-Sup Kim, Bok-Hwan Jung, Goo-Jin Jeong
Life of this patent
Estimating the term…
Abstract
A negative active material of a non-aqueous electrolyte battery includes a compound represented by formula 1: LixMyVzO2+d (1) where 0.1≦x≦2.5, 0<y≦0.5, 0.5≦z≦1.5, 0≦d≦0.5, and M is at least one element selected from the group consisting of Al, Cr, Mo, Ti, W, and Zr.
Claims41
A negative active material of a non-aqueous electrolyte battery, the negative active material comprising a compound represented by formula 1:
- LixMyVzO2+d (1)
- where 0.1≦x≦2.5, 0.01<y≦0.05, 0≦d≦0.5, and
- M is at least one element selected from the group consisting of Al, Cr, Mo, Ti, W, and Zr,
- wherein the negative active material has a distance ratio between axes of approximately 2.5 to 6.5, before lithium intercalation, and when the negative active material is intercalated, the negative active material has a distance ratio between axes of approximately 3.5 to 7.0, after lithium intercalation,
- wherein the negative active material has a void volume ranging from 10″3 cc/g to 0.8 cc/g for a particle size of 0.1 to 10 gm;
- and
- wherein z=0.9−y.
4 more elements
A non-aqueous electrolyte battery comprising:
- a positive electrode comprising a positive active material to intercalate/deintercalate lithium;
- a non-aqueous electrolyte;
- and
- a negative electrode comprising a negative active material including a compound represented by formula 1:
- LixMyVzO2+d (1)
- where 0.1≦x≦2.5, 0.01<y≦0.05, 0≦d≦0.5, and
- M is at least one element selected from the group consisting of Al, Cr, Mo, Ti, W, and Zr,
- wherein the negative active material has a distance ratio between axes of approximately 2.5 to 6.5 before lithium intercalation, the negative active material is intercalated/deintercalated, and the negative active material has a distance ratio between axes of approximately 3.5 to 7 after lithium intercalation,
- wherein the negative active material has a void volume ranging 10−3 cc/g to 0.8 cc/g for a particle size of 0.1 to 10 μm;
- and
- wherein z=0.9−y.
8 more elements
Dependencies are inferred from the claim text.