Non-aqueous lithium ion secondary battery
AssigneeFuji Photo Film Co., Ltd.
InventorTsutomu Miyasaka
Life of this patent
Estimating the term…
Abstract
A non-aqueous lithium ion secondary battery is composed of a positive electrode layer, a negative electrode layer, and a non-aqueous electrolyte. The positive electrode layer contains positive electrode active material of the following formula: LixNi1−yCoy−zMzO2−aXb wherein M is Mg, Ca, Ba, Ti, V, Cr, Mn, Fe, Co, Cu, Zn, Nb, Mo, Ag, Ta, W, B, Al, Ga, In, C, Si, Ge, Sn, or Pb; X is a halogen atom; 0.2<x≦1.2, 0<y≦0.5, z<y, 0<z<0.5, 0≦a≦1.0 and 0≦b≦2a; and at least one of positive and negative electrode layers contains rubber binder.
Claims8
A non-aqueous lithium ion secondary battery which comprises a positive electrode layer comprising an active material of lithium-containing metal complex oxide, a negative electrode layer comprising lithium ion retainable and releasable material, and a non-aqueous electrolyte;
- wherein the lithium-containing metal complex oxide is a nickel-containing lithium complex oxide of the following formula:
- LixNi1−yCoy−zMzO2−aXb
- wherein M represents at least one element selected from the group consisting of Mg, Ca, Ba, Ti, V, Cr, Fe, Cu, Zn, Nb, Mo, Ag, Ta, W, B, Ga, In, C, Si, Ge, Sn and Pb;
- X is a halogen atom;
- x, y, z, a and b are numbers satisfying the conditions of 0.2<x≦1.2, 0<y≦0.5, z<y, 0<z<0.5, 0.01≦a≦0.5, and 0.01≦b≦2a, respectively;
- and
- at least one of the positive and negative electrode layers contains a rubber binder.
Dependencies are inferred from the claim text.