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US7955733: Cathode materials for secondary (rechargeable) lithium batteries

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Filing Information

Inventor(s) Michel Armand · John B. Goodenough · Akshaya K. Padhi · Kirakodu S. Nanjundaswamy · Christian Masquelier ·
Assignee(s) Hydro-Quebec ·
Attorney/Agent(s) Baker Botts L.L.P. ·
Primary Examiner Dah-Wei D Yuan ·
Assistant Examiner Adam A Arciero ·
Application Number US12859865
Filing date 08/20/2010
Issue date 06/07/2011
Prior Publication Data
Predicted expiration date 04/21/2017
U.S. Classifications 429/218.1  · 429/221  ·
International Classifications H01M413  · H01M458  ·
Kind CodeB2
Related U.S. Application DataThis is a continuation application of application Ser. No. 11/179,617, filed Jul. 13, 2005 (currently pending, which is a continuation of application Ser. No. 10/902,142, filed Jul. 30, 2004 (now abandoned), which is a continuation of application Ser. No. 10/307,346, filed Dec. 2, 2002 (now abandoned), which is a continuation of application Ser. No. 08/998,264, filed Dec. 24, 1997 (now U.S. Pat. No. 6,514,640, issued Feb. 4, 2003), which is a continuation-in-part of application Ser. No. 08/840,523 (now U.S. Pat. No. 5,910,382, issued Jun. 8, 1999), filed Apr. 21, 1997. This application claims priority through the above-identified applications to provisional patent Application No. 60/032,346, filed Dec. 4, 1996, and provisional patent Application No. 60/016,060, filed Apr. 23, 1996. The entire text of each of the above-referenced disclosures is specifically incorporated by reference herein without disclaimer. The Robert A. Welch Foundation, Houston, Tex., supported research related to the present invention.
21 Claims, 11 Drawings


Abstract

The invention relates to materials for use as electrodes in an alkali-ion secondary (rechargeable) battery, particularly a lithium-ion battery. The invention provides transition-metal compounds having the ordered-olivineor the rhombohedral NASICON structure and the polyanion (PO4)3− as at least one constituent for use as electrode material for alkali-ion rechargeable batteries.

Independent Claims | See all claims (21)

  1. 1. A synthesized cathode material usable in a rechargeable electrochemical cell comprising one or more compounds, at least one of the compounds with an olivine structure comprising the general formula LiMPO4, where M is one first-row transition-metal selected from the group consisting of Fe, Mn, Ni and Ti.
  2. 5. A synthesized cathode material usable in a rechargeable electrochemical cell comprising one or more compounds, at least one of the compounds with an olivine structure comprising the general formula LiMPO4, where M is a combination of first-row transition-metals selected from the group consisting of Mn, Fe, Ti and Ni.
  3. 9. A synthesized cathode material usable in a rechargeable electrochemical cell comprising one or more compounds, at least one of the compounds with an olivine structure comprising the general formula LiMPO4, where M is one or more first-row transition-metals selected from the group consisting of Fe, Mn, Ni and Ti.
  4. 11. A secondary battery comprising a cathode comprising one or more compounds, at least one of the compounds with an olivine structure comprising the general formula LiMPO4, where M is one first-row transition-metal selected from the group consisting of Fe, Mn, Ni and Ti.
  5. 15. A secondary battery comprising a cathode comprising one or more compounds, at least one of the compounds with an olivine structure comprising the general formula LiMPO4, where M is a combination of first-row transition-metals selected from the group consisting of Mn, Fe, Ti, and Ni.
  6. 20. A secondary battery comprising a cathode comprising one or more compounds, at least one of the compounds with an olivine structure comprising the general formula LiMPO4, where M is one or more first-row transition-metals selected from the group consisting of Fe, Mn, Ni and Ti.

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CA2395115VALENCE TECHNOLOGY INCJul 2001
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