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“Pyrophosphate Compound And Production Process Thereof”
Abstract: To provide a positive electrode active material containing a pyrophosphate compound, ensuring that mixing of impurities is easily prevented to facilitate the synthesis and a high capacity battery is obtained, and a lithium ion battery using the positive electrode material. That is, the present invention relates to a pyrophosphate compound represented by the formula: Li2Mi-xFexP2O7 (wherein M represents one or more elements selected from Mn, Zr, Mg, Co, Ni, V and Cu, and 0.3=x=0.9).
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
05 June 2012
Publication Number
42/2013
Publication Type
INA
Invention Field
CHEMICAL
Status
Email
ipo@knspartners.com
Parent Application
Applicants
THE UNIVERSITY OF TOKYO
3-1 Hongo 7-chome Bunkyo-ku Tokyo 113-8654 Japan
Inventors
1. Atsuo Yamada
c/o The University of Tokyo 3-1 Hongo 7-chome Bunkyo-ku Tokyo 113-8654 Japan
2. Shinichi Nishimura
c/o The University of Tokyo 3-1 Hongo 7-chome Bunkyo-ku Tokyo 1138654 Japan
3. Ryuichi Natsui
c/o Tokyo Institute of Technology 4259 Nagatsuta-cho Midori-ku Yokohama-shi Kanagawa 2268503 Japan
Specification
PLEASE SEE THE SPECIFICATION ATTACHED
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 4910-CHENP-2012 CORRESPONDENCE OTHERS 08-06-2012.pdf | 2012-06-08 |
| 1 | 4910-CHENP-2012-AbandonedLetter.pdf | 2017-11-13 |
| 2 | 4910-CHENP-2012 FORM-18 08-06-2012.pdf | 2012-06-08 |
| 2 | 4910-CHENP-2012-FER.pdf | 2017-04-18 |
| 3 | Form-5.pdf | 2012-06-12 |
| 3 | 4910-CHENP-2012-Correspondence-F3-291215.pdf | 2016-06-14 |
| 4 | Form-3.pdf | 2012-06-12 |
| 4 | 4910-CHENP-2012-Form 3-291215.pdf | 2016-06-14 |
| 5 | Form-1.pdf | 2012-06-12 |
| 5 | 4910-CHENP-2012 CORRESPONDENCE OTHERS 30-06-2015.pdf | 2015-06-30 |
| 6 | Drawings.pdf | 2012-06-12 |
| 6 | 4910-CHENP-2012 FORM-3 30-06-2015.pdf | 2015-06-30 |
| 7 | IP 20631 (Form 1).pdf | 2015-05-05 |
| 7 | 4910-CHENP-2012 CORRESPONDENCE OTHERS 24-09-2012.pdf | 2012-09-24 |
| 8 | IP 20631 (Form 13).pdf | 2015-05-05 |
| 8 | 4910-CHENP-2012 ENGLISH TRANSLATION 24-09-2012.pdf | 2012-09-24 |
| 9 | 4910-CHENP-2012 FORM-3 23-01-2013.pdf | 2013-01-23 |
| 9 | 4910-CHENP-2012 FORM-13 01-05-2015.pdf | 2015-05-01 |
| 10 | 4910-CHENP-2012 CORRESPONDENCE OTHERS 23-01-2013.pdf | 2013-01-23 |
| 10 | 4910-CHENP-2012 FORM-3 06-03-2013.pdf | 2013-03-06 |
| 11 | 4910-CHENP-2012 CORRESPONDENCE OTHERS 06-03-2013.pdf | 2013-03-06 |
| 12 | 4910-CHENP-2012 CORRESPONDENCE OTHERS 23-01-2013.pdf | 2013-01-23 |
| 12 | 4910-CHENP-2012 FORM-3 06-03-2013.pdf | 2013-03-06 |
| 13 | 4910-CHENP-2012 FORM-3 23-01-2013.pdf | 2013-01-23 |
| 13 | 4910-CHENP-2012 FORM-13 01-05-2015.pdf | 2015-05-01 |
| 14 | 4910-CHENP-2012 ENGLISH TRANSLATION 24-09-2012.pdf | 2012-09-24 |
| 14 | IP 20631 (Form 13).pdf | 2015-05-05 |
| 15 | 4910-CHENP-2012 CORRESPONDENCE OTHERS 24-09-2012.pdf | 2012-09-24 |
| 15 | IP 20631 (Form 1).pdf | 2015-05-05 |
| 16 | 4910-CHENP-2012 FORM-3 30-06-2015.pdf | 2015-06-30 |
| 16 | Drawings.pdf | 2012-06-12 |
| 17 | 4910-CHENP-2012 CORRESPONDENCE OTHERS 30-06-2015.pdf | 2015-06-30 |
| 17 | Form-1.pdf | 2012-06-12 |
| 18 | 4910-CHENP-2012-Form 3-291215.pdf | 2016-06-14 |
| 18 | Form-3.pdf | 2012-06-12 |
| 19 | Form-5.pdf | 2012-06-12 |
| 19 | 4910-CHENP-2012-Correspondence-F3-291215.pdf | 2016-06-14 |
| 20 | 4910-CHENP-2012-FER.pdf | 2017-04-18 |
| 20 | 4910-CHENP-2012 FORM-18 08-06-2012.pdf | 2012-06-08 |
| 21 | 4910-CHENP-2012-AbandonedLetter.pdf | 2017-11-13 |
| 21 | 4910-CHENP-2012 CORRESPONDENCE OTHERS 08-06-2012.pdf | 2012-06-08 |
Search Strategy
| 1 | SearchStrategyandreport_15-03-2017.pdf |