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71. 发明专利

DE69422854D1 未知
公开(公告)号：DE69422854D1
公开(公告)日：2000-03-09
申请号：DE69422854
申请日：1994-05-31
申请人： SONY CORP
发明人： OMARU ATSUO , NAGAMINE MASAYUKI , NAKAJIMA NAOYUKI
IPC分类号： H01M4/58 , H01M10/40
摘要： A non-aqueous liquid electrolyte secondary battery including an anode (1) formed of a carbon material capable of dope and undope of lithium, a cathode (2) formed of a lithium-containing transition metal composite oxide and a non-aqueous liquid electrolyte (3) is disclosed. The carbon material for the anode contains graphite and a non-graphitic carbon material formed of at least a non-graphitizable carbon material or a graphitizable carbon material. The non-graphitic carbon material preferably exhibits a discharge capacity per gram 80% or more of that of the graphite, measured in the first cycle of intermittent charging and discharging. The non-graphitic carbon material exhibits a ratio of a discharge capacity up to 0.3 V to a discharge capacity up to 1.5 V which is not smaller than 0.5, measured in the first cycle of intermittent charging and discharging with a standard of a lithium potential. Specifically, the graphite has a true density of 2.1 g/cm or greater, an interplanar distance of (002) of less than 0.340 nm found by X-ray diffraction, and a C-axis crystallite size of the (002) plane of 14.0 nm or greater. The non-graphitic carbon material has a true density of 1.70 g/cm or smaller, an interplanar distance of (002) plane of 0.37 nm or greater, and an exothermic peak observed at temperatures except 700 DEG C and higher temperatures in differential thermal analysis in an air stream. The non-aqueous liquid electrolyte is a liquid electrolyte formed by dissolving an electrolyte into a non-aqueous solvent containing ethylene carbonate.

72. 发明专利

DE69324604D1 未知
公开(公告)号：DE69324604D1
公开(公告)日：1999-05-27
申请号：DE69324604
申请日：1993-12-28
申请人： SONY CORP
发明人： IMOTO HIROSHI , OMARU ATSUO , AZUMA HIDETO , NISHI YOSHIO , GONNO YOSHIHISA , NAGAMINE MASAYUKI
IPC分类号： H01M4/02 , H01M4/38 , H01M4/58
摘要： PCT No. PCT/JP93/01929 Sec. 371 Date Aug. 23, 1995 Sec. 102(e) Date Aug. 23, 1995 PCT Filed Dec. 28, 1993 PCT Pub. No. WO95/18467 PCT Pub. Date Jul. 6, 1995An anode material consisting of non-graphitizable carbon material obtained by baking carbon precursor is disclosed. In this non-graphitizable carbon material, ratio by weight of carbon Ps in stacking structure determined from diffraction peak originating in (002) crystal lattice plane and X-ray diffraction spectrum components on the lower angle side with respect to the diffraction peak originating in the (002) crystal lattice plane of X-ray diffraction spectrum is smaller than 0.59, or stacking index SI thereof is smaller than 0.76. Moreover, average number of carbon layers nave in stacking structure is smaller than 2.46. Alternatively, when baking temperature is T DEG C. and half width at half maximum of peak appearing in the vicinity of 1340 cm-1 in Raman spectrum is HW, the condition expressed below is satisfied.HW>138-0.06xTThis non-graphitizable carbon material is manufactured by allowing carbon precursor which becomes non-graphitizable carbon by baking to undergo heat treatment at temperature 600 DEG C. or more under inactive gas atmosphere of flow rate of 0.1 ml/sec. or more per carbon precursor 1 g, or to undergo heat treatment at temperature 600 DEG C. or more under the atmosphere of pressure less than 50 kPa. At this time, carbon precursor is mounted in a layered form so that the area in contact with the atmosphere is 10 cm2 or more per 1 Kg.

73. 发明专利

CA2098531C CELL ELECTROLYTE SOLVENT, CELL ELECTROLYTE COMPRISING THE SOLVENT AND NON-AQUEOUS ELECTROLYTE BATTERY COMPRISING THE ELECTROLYTE 未知
公开(公告)号：CA2098531C
公开(公告)日：1997-12-23
申请号：CA2098531
申请日：1993-06-16
申请人： MITSUI PETROCHEMICAL IND , SONY CORP
发明人： YOKOYAMA KEIICHI , OMARU ATSUO , FUJITA SHIGERU , HIWARA AKIO
IPC分类号： H01M10/0569 , H01M6/16
摘要： Disclosed are a solvent for cell electrolyte comprising a carbamate represented by the following formula ¢1!; (see fig. I) wherein R1, R2 and R3 independently represent a linear or branched alkyl group. cell electrolyte and non-aqueous electrolyte battery comprising the solvent. The solvent can provide batteries showing high withstand voltage and excellent charge/discharge efficiency.

74. 发明专利

CA2175297A1 PROCESS FOR PREPARING CARBONACEOUS MATERIAL FOR NEGATIVE ELECTRODE OF CELL AND NON-AQUEOUS ELECTROLYTE SECONDARY CELL USING SAME 未知
公开(公告)号：CA2175297A1
公开(公告)日：1996-11-18
申请号：CA2175297
申请日：1996-04-29
申请人： SONY CORP
发明人： NAGAMINE MASAYUKI , OMARU ATSUO , NAKAJIMA NAOYUKI
IPC分类号： C01B31/02 , C01B31/04 , H01M4/133 , H01M4/1393 , H01M4/58 , H01M4/587 , H01M10/05 , H01M10/0525 , H01M10/0566 , H01M10/36 , C04B35/64 , H01M10/04 , C04B35/528
摘要： A material for a negative electrode of a cell, which is prepared according to a process of the present invention, can provides a cell having a high true specific gravity, a high charging capacity and an excellent cycle characteristic. The process of the present invention comprises the steps of carbonizing an organic compound to form a carbide thereof, pulverizing said carbide to form a powder having an average particle size of 10 .mu. to 2 mm, and sintering said powder of the carbide at a temperature of 2, 000 C or higher to produce a graphite. In addition, in accordance with the present invention, there is also provided non-aqueous electrolyte secondary cell comprising a negative electrode, which is prepared by carbonizing an organic compound to form a carbide thereof, pulverizing the carbide to form a powder having an average particle size of 10 .mu.m to 2 mm, and sintering the powder of the carbide at a temperature of 2, 000.degree. C to form a graphite.

75. 发明专利

CA2153478A1 Non-Aqueous Electrolytic Solutions and Non-Aqueous Electrolyte Cells Comprising the Same 未知
公开(公告)号：CA2153478A1
公开(公告)日：1996-01-08
申请号：CA2153478
申请日：1995-07-07
申请人： MITSUI PETROCHEMICAL IND , SONY CORP
发明人： YOKOYAMA KEIICHI , FUJITA SHIGERU , HIWARA AKIO , NARUSE YOSHIAKI , TORIIDA MASAHIRO , OMARU ATSUO
IPC分类号： H01M6/16 , H01M10/052 , H01M10/0567 , H01M10/36

76. 发明专利

DE69008978T2 未知
公开(公告)号：DE69008978T2
公开(公告)日：1994-12-01
申请号：DE69008978
申请日：1990-07-26
申请人： SONY CORP
发明人： AZUMA HIDETO , OMARU ATSUO , NISHI YOSHIO C O SONY CORPORAT
IPC分类号： C04B35/528 , C10C3/04 , H01M4/02 , H01M4/04 , H01M4/58 , H01M4/587 , H01M10/0525 , H01M10/36 , C04B35/52 , C10C3/02

77. 发明专利

DE69008978D1 未知
公开(公告)号：DE69008978D1
公开(公告)日：1994-06-23
申请号：DE69008978
申请日：1990-07-26
申请人： SONY CORP
发明人： AZUMA HIDETO , OMARU ATSUO , NISHI YOSHIO C O SONY CORPORAT
IPC分类号： C04B35/528 , C10C3/04 , H01M4/02 , H01M4/04 , H01M4/58 , H01M4/587 , H01M10/0525 , H01M10/36 , C04B35/52 , C10C3/02

78. 发明专利

CA2103298A1 Carbonate Compounds, Non-Aqueous Electrolytic Solutions and Batteries Comprising Non-Aqueous Electrolytic Solutions 未知
公开(公告)号：CA2103298A1
公开(公告)日：1994-05-19
申请号：CA2103298
申请日：1993-11-17
申请人： MITSUI PETROCHEMICAL IND , SONY CORP
发明人： YOKOYAMA KEIICHI , HIWARA AKIO , FUJITA SHIGERU , OMARU ATSUO
IPC分类号： C07C69/96 , H01M6/16 , H01M10/0569
摘要： A carbonate compound of formula (I): R CH2-O-CO-O-CH2R (I) wherein: R is a hydrogen atom, an alkyl group or an alkyl group substituted with one or more halogen atoms; and R is an alkyl group having no hydrogen atom at the alpha -position thereof or an alkyl group substituted with one or more halogen atoms and having no hydrogen atom at the alpha -position thereof; with the proviso that R is not identical to R .>

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