Positive Electrode And Lithium Ion Secondary Battery
AssigneeTDK Corporation
InventorsTetsu SYOJI, Hideaki SEKI, Hirofumi KAKUTA, Shin FUJITA
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Abstract
A positive electrode includes: a positive electrode current collector; and a positive electrode active material layer disposed on the positive electrode current collector. The positive electrode active material layer contains a lithium-containing transition metal oxide represented by composition formula (1) indicated below, and a compound represented by LiVOPO4. The lithium-containing transition metal oxide and the compound represented by LiVOPO4 are dispersed in the positive electrode active material layer. LitNixCoyAlzO2 (1) where 0.9<t<1.1, 0.3<x<0.99, 0.01<y<0.4, 0.001<z<0.2, and x+y+z=1.
Claims9
A positive electrode comprising:
- a positive electrode current collector;
- and
- a positive electrode active material layer disposed on the positive electrode current collector, wherein
- the positive electrode active material layer contains a lithium-containing transition metal oxide represented by composition formula (1) indicated below, and a compound represented by LiVOPO4, and
- the lithium-containing transition metal oxide and the compound represented by LiVOPO4 are dispersed in the positive electrode active material layer, wherein
- LitNixCoyAlzO2 (1)
- where 0.9≦t≦1.1, 0.3<x<0.99, 0.01<y<0.4, 0.001<z<0.2, and x+y+z=1.
Dependencies are inferred from the claim text.