ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR MANUFACTURING ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
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United States of America Patent
Stats
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N/A
Issued Date -
Oct 16, 2014
app pub date -
Dec 5, 2012
filing date -
Dec 9, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Provided is an active material for a nonaqueous electrolyte secondary battery containing a lithium transition metal composite oxide which has a crystal structure of an α-NaFeO2 type and is represented by a compositional formula Li1+αMe1−αO2 (Me is a transition metal element including Co, Ni and Mn, α>0). In the lithium transition metal composite oxide, a compositional ratio Li/Me of lithium Li to the transition metal element Me is 1.25 to 1.425, and an oxygen positional parameter, determined from crystal structure analysis by Rietveld method at the time of using a space group R3-m as a crystal structure model based on an X-ray diffraction pattern in a state of a discharge end, is 0.262 or less.
First Claim
Other Claims data not available
Family
| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| EP | A1 | EP2790254 | Dec 05, 2012 |
| CN | B | CN103765639 | Dec 05, 2012 |
| WO | A1 | WO2013084923 | Dec 05, 2012 |
| JP | B2 | JP5863065 | Dec 05, 2012 |
| KR | B1 | KR101975427 | Dec 05, 2012 |
| JP | B2 | JP6041168 | Dec 25, 2015 |
| JP | B2 | JP6197939 | Nov 10, 2016 |
International Classification(s)
- 2012 Application Filing Year
- H01M Class
- 3746 Applications Filed
- 3459 Patents Issued To-Date
- 92.34 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 10 Citation Count
- H01M Class
- 8.60 % this patent is cited more than
- 11 Age