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71. 发明专利

ES2169425T3 未知
公开(公告)号：ES2169425T3
公开(公告)日：2002-07-01
申请号：ES97942393
申请日：1997-09-04
申请人： VALENCE TECHNOLOGY INC
发明人： BARKER JEREMY , SAIDI MOHAMED-YAZID
IPC分类号： C01B25/45 , H01M4/02 , H01M4/04 , H01M4/58 , H01M4/583 , H01M4/62 , H01M10/052 , H01M10/0525 , H01M10/36 , H01M4/52 , H01M10/40
摘要： An electrode comprises: (i) an active material composed of a phosphorus compound. In a first condition, the compound has a nominal formula: Li(3-x)E'E''(PO4)3 where x = 0, where at least one of the elements E' and E'' is a metal, and where E' and E'' are the same or different. In a second condition, the compound has a nominal formula as above, where 0 x =3, and where at least one of the elements E' and E'' has an oxidation state higher than that in the phosphorus compound in its first condition. Also claimed is an electrochemical cell consisting of a first electrode and a second counter electrode, where the first electrode comprises a phosphorus compound of nominal formula: Li(3-x)M'M''(PO4)3 where M' and M'' are metallic or semi-metallic elements, and M' and M'' are the same or different. In the case when M' and M'' are the same, they are both transition metals. In the case when M' and M'' are different, at least one is a transition metal. An electrochemical cell consists of a first electrode and a second counter electrode, where the first electrode comprises a phosphorus compound of nominal formula: Li(3-x)E'E''(PO4)3 where E' and E'' are the same or different. In the case when E' and E'' are the same, the element has more than one oxidation state. In the case when E' and E'' are different, they are each independently selected from a group of elements, where at least one of E' and E'' has more than one oxidation state. Further claimed is a method for operating electrochemical cells, by: (a) providing a first electrode (12), comprising a Li-metal-phosphate compound, a second counter electrode (14) and an electrolyte (16) therebetween; (b) electrochemically de-intercalating Li ions from the Li-metal-phosphate compound and transferring the ions to the counter electrode to charge the cell; and (c) electrochemically removing at least a portion of the transferred Li ions from the counter electrode for re-intercalation into the Li-metal-phosphate compound, whereupon electrochemical energy is obtained from the cell during discharge. Another claim is a battery as above, where the Li-metal-phosphate compound is represented by Li(3-x)M'yM''(2-y)(PO4)3 and where, during charge and discharge, the value of x Li ions transferred between the electrode varies as 0+-x+-3.

72. 发明专利

CA2428201A1 METHODS OF MAKING LITHIUM METAL COMPOUNDS USEFUL AS CATHODE ACTIVE MATERIALS 未知
公开(公告)号：CA2428201A1
公开(公告)日：2002-06-06
申请号：CA2428201
申请日：2001-11-19
申请人： VALENCE TECHNOLOGY INC
发明人： YAZID SAIDI M , SWOYER JEFFREY L , BARKER JEREMY
IPC分类号： C01B25/00 , C01B25/45 , C01B25/455 , C01G31/00 , H01M4/02 , H01M4/48 , H01M4/485 , H01M4/50 , H01M4/505 , H01M4/52 , H01M4/525 , H01M4/58 , H01M10/052 , H01M10/36
摘要： The invention provides a novel method for making lithium mixed metal materials in electrochemical cells. The lithium mixed metal materials comrise lithium and aat least one other metal besides lithium. The invnetion involves the reaction of a metal compound, a phosphate compound, with a reducing agent to reduce the mettal and form a metal phosphate. The invention also includes methods of making lithium metal oxides involving reaction of a lithium compound, a metal oxide with a reducing agent.

73. 发明专利

AU4364701A Lithium metal fluorophosphate materials and preparation thereof 未知
公开(公告)号：AU4364701A
公开(公告)日：2001-11-12
申请号：AU4364701
申请日：2001-03-14
申请人： VALENCE TECHNOLOGY INC
发明人： BARKER JEREMY , SAIDI YAZID M , SWOYER JEFFREY L
IPC分类号： C01B25/455 , H01M4/02 , H01M4/58 , H01M10/0525 , H01M10/36 , C01B25/26
摘要： The invention provides new and novel lithium-metal-fluorophosphates which, upon electrochemical interaction, release lithium ions, and are capable of reversibly cycling lithium ions. The invention provides a rechargeable lithium battery which comprises an electrode formed from the novel lithium-metal-fluorophosphates. The lithium-metal-fluorophosphates comprise lithium and at least one other metal besides lithium.

74. 发明专利

CA2407617A1 LITHIUM METAL FLUOROPHOSPHATE MATERIALS AND PREPARATION THEREOF 未知
公开(公告)号：CA2407617A1
公开(公告)日：2001-11-08
申请号：CA2407617
申请日：2001-03-14
申请人： VALENCE TECHNOLOGY INC
发明人： BARKER JEREMY , SAIDI YAZID M , SWOYER JEFFREY L
IPC分类号： C01B25/455 , H01M4/02 , H01M4/58 , H01M10/0525 , H01M10/36 , C01B25/26
摘要： The invention provides new and novel lithium-metal-fluorophosphates which, upon electrochemical interaction, release lithium ions, and are capable of reversibly cycling lithium ions. The invention provides a rechargeable lithi um battery which comprises an electrode formed from the novel lithium-metal- fluorophosphates. The lithium-metal-fluorophosphates comprise lithium and at least one other metal besides lithium.

75. 发明专利

CA2466366A1 PREPARATION OF LITHIUM-CONTAINING MATERIALS 未知
公开(公告)号：CA2466366A1
公开(公告)日：2001-07-26
申请号：CA2466366
申请日：2000-12-22
申请人： VALENCE TECHNOLOGY INC
发明人： SAIDI M YAZID , SWOYER JEFFREY L , BARKER JEREMY
IPC分类号： C01G31/00 , C01B25/26 , C01B25/37 , C01B25/45 , C01D15/00 , C01G1/08 , C01G1/10 , C01G3/00 , C01G19/00 , C01G21/00 , C01G23/00 , C01G37/00 , C01G39/00 , C01G45/00 , C01G49/00 , C01G51/00 , C01G53/00 , C01G99/00 , H01M4/02 , H01M4/13 , H01M4/131 , H01M4/136 , H01M4/1391 , H01M4/1397 , H01M4/48 , H01M4/485 , H01M4/50 , H01M4/505 , H01M4/52 , H01M4/525 , H01M4/58 , H01M6/40 , H01M10/052 , H01M10/0525 , H01M10/0566 , H01M10/36
摘要： The invention provides novel lithium-mixed metal materials which, upon electrochemical interaction, release lithium ions, and are capable of reversibly cycling lithium ions. The invention provides a rechargeable lithium battery which comprises an electro de formed from the novel lithium-mixed metal materials. Methods for making the novel lithium-mixed metal materials and methods for using such lithium-mixed metal materials in electrochemical cells are also provided. The lithium-mixed metal materials comprise lithium and at least one ather metal besides lithium. Preferred materials ar e lithium-mixed metal phosphates which contain lithium and two other metals besides lithium.

76. 发明专利

AU6496700A Lactone solvents for electrochemical cells 未知
公开(公告)号：AU6496700A
公开(公告)日：2001-04-30
申请号：AU6496700
申请日：2000-07-26
申请人： VALENCE TECHNOLOGY INC , DELPHI TECH INC
发明人： BARKER JEREMY , GAO FENG , THURSTON EDWARD P
IPC分类号： H01M4/50 , H01M4/505 , H01M4/52 , H01M4/525 , H01M6/16 , H01M10/0525 , H01M10/0569 , H01M10/36 , H01M10/40
摘要： The present invention provides an electrochemical cell having an electrolyte comprising a solvent and a solute, the solute comprising a lithium salt, and the solvent comprising an organic solvent selected from the group of lactones.

77. 发明专利

AU4168000A Lithium-containing phosphate active materials 未知
公开(公告)号：AU4168000A
公开(公告)日：2000-10-09
申请号：AU4168000
申请日：2000-02-22
申请人： VALENCE TECHNOLOGY INC
发明人： BARKER JEREMY
IPC分类号： C01B25/455 , H01M4/133 , H01M4/136 , H01M4/58 , H01M10/0525 , H01M10/0585 , H01M10/36 , H01M4/48 , C01B25/30
摘要： The invention provides novel lithium-containing phosphate materials having a high proportion of lithium per formula unit of the material. Upon electrochemical interaction, such material deintercalates lithium ions, and is capable of reversibly cycling lithium ions. The invention provides a rechargeable lithium battery which comprises an electrode formed from the novel lithium-containing phosphates.

78. 发明专利

CA2367338A1 LITHIUM-CONTAINING PHOSPHATE ACTIVE MATERIALS 未知
公开(公告)号：CA2367338A1
公开(公告)日：2000-09-28
申请号：CA2367338
申请日：2000-02-22
申请人： VALENCE TECHNOLOGY INC
发明人： BARKER JEREMY
IPC分类号： C01B25/455 , H01M4/133 , H01M4/136 , H01M4/58 , H01M10/0525 , H01M10/0585 , H01M10/36 , C01B25/30 , H01M4/48
摘要： The invention provides novel lithium-containing phosphate materials having a high proportion of lithium per formula unit of the material. Upon electrochemical interaction, such material deintercalates lithium ions, and is capable of reversibly cycling lithium ions. The invention provides a rechargeable lithium battery which comprises an electrode formed from the novel lithium-containing phosphates.

79. 发明专利

AU6507699A Lithium based phosphates for use in lithium ion batteries and method of preparation 未知
公开(公告)号：AU6507699A
公开(公告)日：2000-06-13
申请号：AU6507699
申请日：1999-10-05
申请人： VALENCE TECHNOLOGY INC
发明人： BARKER JEREMY , SAIDI M YAZID
IPC分类号： C01B25/30 , H01M4/136 , H01M4/1397 , H01M4/58 , H01M10/052 , H01M10/36 , H01M10/40 , C01B25/45
摘要： The invention provides an electrochemical cell which comprises an electrode having a lithium metal phosphorous compound.

80. 发明专利

CA2351332A1 LITHIUM BASED PHOSPHATES FOR USE IN LITHIUM ION BATTERIES AND METHOD OF PREPARATION 未知
公开(公告)号：CA2351332A1
公开(公告)日：2000-06-02
申请号：CA2351332
申请日：1999-10-05
申请人： VALENCE TECHNOLOGY INC
发明人： BARKER JEREMY , SAIDI M YAZID
IPC分类号： C01B25/30 , H01M4/136 , H01M4/1397 , H01M4/58 , H01M10/052 , H01M10/36 , H01M10/40 , C01B25/45
摘要： The invention provides an electrochemical cell which comprises an electrode having a lithium metal phosphorous compound.

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