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1. 发明公开

EP0687022A4 MATERIAL FOR CATHODE AND METHOD OF ITS MANUFACTURE 失效
标题翻译：材料用于生产阴极和方法
公开(公告)号：EP0687022A4
公开(公告)日：1996-09-11
申请号：EP94903101
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： H01M4/1393 , H01M4/48 , H01M4/485 , H01M4/58 , H01M4/587 , H01M10/0525 , H01M10/36
CPC分类号： H01M4/587 , H01M4/1393 , H01M4/485 , H01M4/583 , H01M10/0525
摘要： A material for a cathode is made of a carbon material hard to turn to graphite and obtainable by burning a carbon precursor. For this carbon material having the graphitization resistance, the weight % Ps of carbon in the material is smaller than 0.59 or the stacking index SI is smaller than 0.76. This carbon has a structure of stacked layers, which is determined by the diffraction peak due to the (002) plane of the crystal lattice, and the X-ray diffraction spectrum on the side of an angle lower than the diffraction peak among the X-ray diffraction spectrum. The average Nave of the number of stacked layers is smaller than 2.46. Alternatively, letting the burning temperature be T °C, and the half-width of a peak appearing near 1,340 cm-1 in the Raman spectrum be HW, the following condition is satisfied: HW > 138-0.06 T. This carbon material is manufactured by thermally treating a carbon precursor by burining it in an inert gas atmosphere flown at a flow rate of 0.1 ml per minute or more per one gram of the carbon precursor at a temperature of 600 °C or high, or in an atmosphere pressurized at 50 kPa or less at a temperature of 600 °C or high. In this case, the carbon precursor is placed in a layer so that the contact area of the precursor with the atmosphere is 10 cm2 or more.

2. 发明公开

EP1381099A4 NEGATIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY CELL AND NON-AQUEOUS ELECTROLYTE SECONDARY CELL USING THE NEGATIVE ELECTRODE 有权转让
标题翻译：负电极的非水电解质二次电池，并将该负极使用未水电解质二次电池
公开(公告)号：EP1381099A4
公开(公告)日：2007-01-10
申请号：EP02759831
申请日：2002-04-09
申请人： SONY CORP
发明人： OMARU ATSUO , TANIZAKI HIROAKI
IPC分类号： H01M4/02 , H01M4/04 , H01M4/36 , H01M4/38 , H01M4/40 , H01M4/62 , H01M6/14 , H01M10/05 , H01M10/052
CPC分类号： H01M4/364 , H01M4/13 , H01M4/131 , H01M4/133 , H01M4/134 , H01M4/136 , H01M4/1393 , H01M4/1395 , H01M4/362 , H01M4/386 , H01M4/40 , H01M4/405 , H01M4/485 , H01M4/58 , H01M4/583 , H01M4/625 , H01M10/0525 , H01M10/0568 , H01M10/0569 , H01M2004/027 , Y02E60/122
摘要： The present invention relates to a nonaqueous electrolyte secondary battery comprising an anode (3), a cathode (2) and a nonaqueous electrolyte. The anode forming this battery includes composite particles having a carbon material included in a metallic material. As the metallic material, metal capable of electrochemically reacting with lithium in a nonaqueous electrolyte is included.

3. 发明公开

EP0848440A4 NONAQUEOUS ELECTROLYTE SECONDARY CELL CATHODE MATERIAL AND NONAQUEOUS ELECTROLYTE SECONDARY CELL EMPLOYING THE CATHODE MATERIAL 失效
标题翻译： KATHODENMATERIALFÜRNICHTWAESSRIGE ELEKTROLYTISCHE ZELLE UND ZELLE，DIE DIESES VERWENDET
公开(公告)号：EP0848440A4
公开(公告)日：1999-09-15
申请号：EP97928508
申请日：1997-06-27
申请人： SONY CORP
发明人： OMARU ATSUO , NAKAJIMA NAOYUKI , NAGAMINE MASAYUKI
IPC分类号： H01M4/587 , D01F9/12 , D01F9/15 , D01F11/12 , H01M4/02 , H01M4/04 , H01M4/133 , H01M4/38 , H01M6/16 , H01M10/0525 , H01M10/0566 , H01M4/58
CPC分类号： D01F11/12 , D01F9/15 , H01M4/0433 , H01M4/133 , H01M4/587 , H01M10/0525 , H01M2004/021 , H01M2004/022 , H01M2300/004
摘要： Fibrous carbon having a cross section satisfying an area fulfillment factor of not less than 0.8 is used as nonaqueous electrolyte secondary cell cathode material. Alternatively, since the fractal dimension value of the cross section high order structure of random radial type fibrous carbon can be utilized as a physical property parameter, fibrous carbon which is so controlled as to have a fractal dimension value of 1.1 - 1.8 and a crystallinity in a proper range is used as nonaqueous electrolyte secondary cell cathode material. Further, it is also effective to use fibrous carbon having a notched cross section. Moreover, if graphitized fibrous carbon which has cross-sectional portions having different crystal structures with a certain period in the longitudinal direction of the fiber is produced and pulverized, fibrous carbon pulverized powder with little variation and a constant aspect ratio can be obtained easily.
摘要翻译：作为非水电解质二次电池的负极材料，可以使用能够进行锂的掺杂/脱掺杂并且具有满足0.8以上的面积补充率的截面形状的碳纤维。或者，由于可以利用随机径向型碳纤维的横截面高阶结构的分形尺寸的值作为评价横截面结构的材料参数，其中使分形维数的值落在范围内的碳纤维从1.1至1.8，并且结晶度已被控制使得其落入合理范围内用作非水电解质二次电池的负极材料。此外，作为非水电解质二次电池的负极材料，使用具有横截面高阶结构的碳纤维，使得中心部分为径向型结构，表层部分为随机径向型结构。此外，在截面上使用具有切口结构的碳纤维也是有效的。此外，在纤维长度方向上，在规定时间内，形成具有晶体结构不同的截面部分的石墨化碳纤维。通过粉碎由此获得的石墨化碳纤维，可以容易地制成具有较小不均匀性和预定纵横比的碳纤维粉碎粉末。

4. 发明公开

EP0713258A4 NONAQUEOUS-ELECTROLYTE SECONDARY CELL 失效
标题翻译：二次电池的非水电解质
公开(公告)号：EP0713258A4
公开(公告)日：1996-09-11
申请号：EP95914546
申请日：1995-04-07
申请人： SONY CORP
发明人： OMARU ATSUO , NAKAJIMA NAOYUKI , NAGAMINE MASAYUKI
IPC分类号： H01M10/05 , H01M4/587 , H01M10/0568 , H01M10/0569 , H01M10/40 , H01M4/02 , H01M4/58
CPC分类号： H01M4/587 , H01M4/133 , H01M10/05 , H01M10/0525 , H01M10/0587
摘要： A nonaqueous-electrolyte secondary cell having a negative electrode made of a carbon material which can be doped with lithium and from which dopant lithium can be removed, a positive electrode, a nonaqueous electrolyte prepared by dissolving an electrolyte in a nonaqueous solvent. The carbon material is a pulverized graphite material having a true density of 2.1 g/cm3 and a bulk density of 0.4 g/cm3. This graphite material is such a powder that the mean value of the shape parameter (x) expressed by the following formula is below 125.x = (L/T) x (W/T) where x is the shape parameter of the powder, T is the thickness of powder at the thinnest part, L is the length of powder in the length direction. W is the length of powder in the direction normal to the length direction. The graphite material has a specific surface area of 9 m2/g and a cumulative 10 % grain size of 3 νm, a cumulative 50 % grain size of 10 νm, and a cumulative 90 % grain size of 70 νm in the particle size distribution found by a laser diffraction method. Such a graphite material powder is prepared by, for example, graphitizing a molded body of a carbon material by heat treatment and grinding the graphitized molded body. The mean fracture strength value of the particles of the graphitic material is greater than 6.0 kgf/mm2.

5. 发明专利

DE60120271T2 未知
公开(公告)号：DE60120271T2
公开(公告)日：2007-05-31
申请号：DE60120271
申请日：2001-04-12
申请人： SONY CORP
发明人： NIRASAWA TAKAO , ITO HIDETOSHI , OMARU ATSUO
IPC分类号： C01B31/02 , H01M4/02 , H01M4/36 , H01M4/40 , H01M4/587 , H01M6/16 , H01M10/05 , H01M10/052 , H01M10/0525 , H01M10/0567
摘要： A nonaqueous electrolyte secondary battery includes a positive electrode having a positive electrode active material, a negative electrode containing a negative electrode active material capable of being doped/undoped with lithium, and a nonaqueous electrolyte. The nonaqueous electrolyte contains at least one of thiols, thiophenes, thioanisoles, thiazoles, thioacetates, aromatic sulfones, and the derivatives thereof. The capacity of the battery is not significantly degraded after cycling and its cycle life is significantly long.

6. 发明专利

DE60029516T2 未知
公开(公告)号：DE60029516T2
公开(公告)日：2007-02-15
申请号：DE60029516
申请日：2000-06-16
申请人： SONY CORP
发明人： YAMAGUCHI AKIRA , ITO HIDETOSHI , OMARU ATSUO , NAGAMINE MASAYUKI
IPC分类号： H01M10/05 , H01M4/587 , H01M6/10 , H01M6/16 , H01M10/0525 , H01M10/0567 , H01M10/0569
摘要： A nonaqueous electrolyte battery having improved characteristics under a heavy load environment and incorporating nonaqueous electrolytic solution which contains vinylene carbonate in a proper quantity to improve conductivity of the nonaqueous electrolytic solution so that doping/dedoping of lithium ions is performed smoothly and, therefore, the internal resistance is decreased. Hence it follows that the initial capacity of the battery is enlarged and satisfactory heavy load characteristics are realized.

7. 发明专利

DE60029516D1 未知
公开(公告)号：DE60029516D1
公开(公告)日：2006-09-07
申请号：DE60029516
申请日：2000-06-16
申请人： SONY CORP
发明人： YAMAGUCHI AKIRA , ITO HIDETOSHI , OMARU ATSUO , NAGAMINE MASAYUKI
IPC分类号： H01M10/05 , H01M4/587 , H01M6/10 , H01M6/16 , H01M10/0525 , H01M10/0567 , H01M10/0569
摘要： A nonaqueous electrolyte battery having improved characteristics under a heavy load environment and incorporating nonaqueous electrolytic solution which contains vinylene carbonate in a proper quantity to improve conductivity of the nonaqueous electrolytic solution so that doping/dedoping of lithium ions is performed smoothly and, therefore, the internal resistance is decreased. Hence it follows that the initial capacity of the battery is enlarged and satisfactory heavy load characteristics are realized.

8. 发明专利

CA2122092C SECONDARY BATTERY HAVING NON-AQUEOUS ELECTROLYTE 未知
公开(公告)号：CA2122092C
公开(公告)日：2006-06-06
申请号：CA2122092
申请日：1994-04-25
申请人： SONY CORP , MITSUI PETROCHEMICAL IND
发明人： OMARU ATSUO , FUJITA SHIGERU , YOKOYAMA KEIICHI , HIHARA AKIO
IPC分类号： H01M4/58
摘要： A secondary battery having a non-aqueous electrolyte according to the present invention includes a negative electrode using a carbonaceous material capable of dope and undope of lithium ions as an anode material, a positive electrode using a composite oxide of lithium and a transition metal as a cathode material, and a non-aqueous electrolyte formed by dissolving an electrolyte into a non-aqueous solvent, the non-aqueous solvent containing methylethyl carbonate and dimethyl carbonate. According to the present invention, a secondary battery having a non-aqueous electrolyte in which normal charge/discharge reactions can be maintained even in battery overcharge or after high-temperature storage of a charged battery, and which exhibits a higher energy density, a longer cycle life, higher safety performance and excellent environment-resistance, can be produced.

9. 发明专利

DE60103322D1 未知
公开(公告)号：DE60103322D1
公开(公告)日：2004-06-24
申请号：DE60103322
申请日：2001-03-29
申请人： SONY CORP
发明人： TSUJIMOTO HISASHI , YAMAMOTO YOSHIKATSU , KUYAMA JUNJI , NAGAMINE MASAYUKI , OMARU ATSUO , TANIZAKI HIROAKI
IPC分类号： H01M4/02 , H01M4/131 , H01M4/133 , H01M4/134 , H01M4/36 , H01M4/38 , H01M4/50 , H01M4/505 , H01M4/52 , H01M4/525 , H01M4/58 , H01M4/587 , H01M10/052 , H01M10/0525 , H01M10/0587 , H01M10/36
摘要： Disclosed is a non-aqueous electrolyte secondary battery having an excellent preservation characteristic at a high temperature and charging/discharging cycle characteristic. A rolled body in which a strip-shape positive electrode and negative electrode are rolled with a separator in-between is provided inside a battery can. The positive electrode contains LixMn2-yMayO4 (where, Ma is at least one element selected from the group consisting of metal elements other than Mn, and B) and LiNi1-zMbzO2 (where, Mb is at least one element selected from the group consisting of metal elements other than Ni, and B). By replacing part of Mn and Ni with other elements, the crystal structure can be stabilized. Thereby, the capacity retention ratio after preservation at a high temperature, and a heavy load discharging power under a high electric potential cutoff can be improved. The mean particle size of particles of the above-mentioned oxides are preferable to be 30 mu m and below so that an excellent charging/discharging cycle characteristic can be obtained.

10. 发明专利

DE69531901D1 未知
公开(公告)号：DE69531901D1
公开(公告)日：2003-11-13
申请号：DE69531901
申请日：1995-07-07
申请人： MITSUI CHEMICALS INC , 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 , H01M10/40

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