Spinel type lithium transition metal oxide
In order to provide a novel spinel type lithium transition metal oxide (LMO) having excellent power performance characteristics, in which preferably both the power performance characteristics and the cycle performance at high temperature life characteristics may be balanced, a novel spinel type lithium transition metal oxide with excellent power performance characteristics is proposed by defining the inter-atomic distance Li—O to be 1.978 Å to 2.006 Å as measured by the Rietveld method using the fundamental method in a lithium transition metal oxide represented by the general formula Li 1+x M 2−x O 4 (where M is a transition metal consisting of three elements Mn, Al and Mg and x is 0.01 to 0.08).
1. A spinel type lithium transition metal oxide, which is a spinel type Fd3-m lithium transition metal oxide represented by the general formula Li 1+x M 2−x O 4 , wherein M is a transition metal consisting of three elements Mn, Al and Mg and x is 0.01 to 0.08, and wherein the inter-atomic distance Li—O is 1.978 Å to 2.006 Å as measured by the Rietveld method using the fundamental method.
2. The spinel type lithium transition metal oxide according to claim 1 , wherein the inter-atomic distance Li—O is 1.978 Å to 2.004 Å.
3. The spinel type lithium transition metal oxide according to claim 1 , which is a lithium transition metal oxide represented by the general formula Li(Li x Mg y Al z Mn 2−x−y−z )O 4 , wherein 0.01≦x≦0.08, 0.02≦y≦0.07 and 0.06≦z≦0.14.
4. The spinel type lithium transition metal oxide according to claim 2 , which is a lithium transition metal oxide represented by the general formula Li(Li x Mg y Al z Mn 2−x−y−z )O 4 , wherein 0.01≦x≦0.08, 0.02≦y≦0.07 and 0.06≦z≦0.14.
5. The spinel type lithium transition metal oxide according to claim 1 , wherein the crystallite size is 170 nm to 490 nm.
6. The spinel type lithium transition metal oxide according to claim 2 , wherein the crystallite size is 170 nm to 490 nm.
7. The spinel type lithium transition metal oxide according to claim 1 , wherein the specific surface area is 0.35 to 0.80 m 2 /g.
8. The spinel type lithium transition metal oxide according to claim 2 , wherein the specific surface area is 0.35 to 0.80 m 2 /g.
9. A positive electrode active material ingredient for a lithium battery containing the spinel type lithium transition metal oxide according to claim 1 and a boron compound.
10. A positive electrode active material ingredient for a lithium battery containing the spinel type lithium transition metal oxide according to claim 3 and a boron compound.
11. The positive electrode active material ingredient for a lithium battery according to claim 9 containing aggregated particles which are aggregated spherically.
12. The positive electrode active material ingredient for a lithium battery according to claim 10 containing aggregated particles which are aggregated spherically.
13. The positive electrode active material ingredient for a lithium battery according to claim 9 , wherein the crystallite size of the spinel type lithium transition metal oxide is 500 nm to 2000 nm.
14. The positive electrode active material ingredient for a lithium battery according to claim 10 , wherein the crystallite size of the spinel type lithium transition metal oxide is 500 nm to 2000 nm.
15. The positive electrode active material ingredient for a lithium battery according to claim 11 , wherein the crystallite size of the spinel type lithium transition metal oxide is 500 nm to 2000 nm.
16. The positive electrode active material ingredient for a lithium battery according to claim 12 , wherein the crystallite size of the spinet type lithium transition metal oxide is 500 nm to 2000 nm.
17. A lithium battery for a hybrid electric vehicle provided with the spinel type lithium transition metal oxide according to claim 1 as a positive electrode active material.
18. A lithium battery for a hybrid electric vehicle provided with the spinel type lithium transition metal oxide according to claim 2 as a positive electrode active material.
19. A lithium battery for a hybrid electric vehicle provided with the spinel type lithium transition metal oxide according to claim 9 as a positive electrode active material.
20. A lithium battery for a hybrid electric vehicle provided with the spinet type lithium transition metal oxide according to claim 11 as a positive electrode active material.