公开(公告)号：US06686093B1

公开(公告)日：2004-02-03

申请号：US10009561

申请日：2002-03-06

Applicant: Ryo Sakai ,  Yasuhiro Shirakawa ,  Yasumasa Ooya ,  Koshin Tanaka ,  Hajime Takeuchi

Inventor： Ryo Sakai ,  Yasuhiro Shirakawa ,  Yasumasa Ooya ,  Koshin Tanaka ,  Hajime Takeuchi

IPC: H01M458

CPC classification number: H01M4/485 ,  C01G45/1228 ,  C01G51/42 ,  C01G53/42 ,  C01P2002/52 ,  C01P2002/54 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2006/40 ,  H01M4/02 ,  H01M4/26 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028

Abstract: A positive electrode active material for nonaqueous electrolytic solution secondary batteries is substantially made of a Li containing transition metal composite oxide, which has a composition expressed by LixMySzO2 (wherein M is a transition metal, such as Co, Ni, Mn, Fe and V, and 0.9≦x≦1.15, 0.8≦y≦1.00, and 0

Abstract translation: 用于非水电解液二次电池的正极活性物质基本上由含Li的过渡金属复合氧化物制成，其具有由LixMySzO2表示的组成（其中M是过渡金属，例如Co，Ni，Mn，Fe和V， 和0.9 <= x <= 1.15,0.8 <= y <= 1.00，0

公开(公告)号：US08409754B2

公开(公告)日：2013-04-02

申请号：US11812585

申请日：2007-06-20

Applicant: Ryo Sakai ,  Yasuhiro Shirakawa ,  Hajime Takeuchi ,  Yasumasa Ooya ,  Koshin Tanaka ,  Kazuki Amemiya ,  Shouta Endou

Inventor： Ryo Sakai ,  Yasuhiro Shirakawa ,  Hajime Takeuchi ,  Yasumasa Ooya ,  Koshin Tanaka ,  Kazuki Amemiya ,  Shouta Endou

IPC: H01M4/505 ,  H01M4/525 ,  B01J8/02

CPC classification number: H01M4/505 ,  H01M4/131 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/021 ,  Y10T436/20

Abstract: A positive electrode active material for use in a non-aqueous electrolyte secondary cell comprises a powdery metal oxide (LiCoO2, LiNiO2, LiMn2O4 or the like). When the positive electrode active material is classified with a classification precision index κ of 0.7 or greater so as to obtain a coarse powder having a classification ratio in a range of 0.1% to 5%, a ratio (B/A) of the content (B) of an impurity metal element in the coarse powder obtained by the classification to the content (A) of the impurity metal element in the powder before the classification is 1.5 or less. The contents of the impurity metal elements are compared with respect to Ca, Mn, Fe, Cr, Cu, Zn and the like (exclusive of the metal element constituting the powdery metal oxide). The positive electrode active material for a secondary cell serves to improve cell performance capabilities and production yields.

Abstract translation: 用于非水电解质二次电池的正极活性物质包括粉末状金属氧化物（LiCoO 2，LiNiO 2，LiMn 2 O 4等）。 当正极活性物质用分类精度指数kgr进行分类时， 为0.7以上，得到分级比例在0.1％〜5％范围内的粗粉末，由上述粗粉末中的杂质金属元素的含量（B）的比（B / A） 分类前的粉末中杂质金属元素的含量（A）为1.5以下。 相对于Ca，Mn，Fe，Cr，Cu，Zn等（不包括构成粉末金属氧化物的金属元素）来比较杂质金属元素的含量。 用于二次电池的正极活性材料用于提高电池性能和生产率。

公开(公告)号：US20050221180A1

公开(公告)日：2005-10-06

申请号：US11121111

申请日：2005-05-04

Applicant: Nao Shimura ,  Koshin Tanaka ,  Masahiro Sekino ,  Asako Satoh ,  Shusuke Inada ,  Akria Yajima ,  Masayuki Oguchi

Inventor： Nao Shimura ,  Koshin Tanaka ,  Masahiro Sekino ,  Asako Satoh ,  Shusuke Inada ,  Akria Yajima ,  Masayuki Oguchi

IPC: H01M4/02 ,  H01M4/131 ,  H01M4/52 ,  H01M4/525 ,  H01M10/0567

CPC classification number: H01M4/525 ,  H01M4/131 ,  H01M10/0567 ,  H01M2004/021

Abstract: A nonaqueous electrolyte secondary battery includes a nonaqueous electrolyte and a positive electrode including an active material containing lithium composite oxide powder, the lithium composite oxide powder includes secondary particles, exhibits a peak intensity ratio satisfying the following formula (4), satisfies the following formula (5), and has a particle distribution wherein a particle diameter at a volumetric cumulative frequency of 90% (D90) falls within the range of 10 to 25 μm, and the nonaqueous electrolyte contains a sultone compound including a ring having at least one double bond; 2≦(I003/I104)

Abstract translation: 非水电解质二次电池包括非水电解质和包含含有锂复合氧化物粉末的活性物质的正极，所述锂复合氧化物粉末包括二次粒子，表现出满足下式（4）的峰强度比，满足下式（ 5），并且具有体积累积频率为90％（D90）的粒径在10〜25μm的范围内的粒子分布，非水电解质含有包含具有至少一个双键的环的磺内酯化合物 ; <？in-line-formula description =“In-line Formulas”end =“lead”？> 2 <=（I 003 / I < ）<？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？> 0.95 <=（X α= 1.02（5）<？in-line-formula description =“In-line Formulas”end =“tail”？>

公开(公告)号：US20070253892A1

公开(公告)日：2007-11-01

申请号：US11812585

申请日：2007-06-20

Applicant: Ryo Sakai ,  Yasuhiro Shirakawa ,  Hajime Takeuchi ,  Yasumasa Ooya ,  Koshin Tanaka ,  Kazuki Amemiya ,  Shouta Endou

Inventor： Ryo Sakai ,  Yasuhiro Shirakawa ,  Hajime Takeuchi ,  Yasumasa Ooya ,  Koshin Tanaka ,  Kazuki Amemiya ,  Shouta Endou

IPC: C01C1/00

CPC classification number: H01M4/505 ,  H01M4/131 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/021 ,  Y10T436/20

Abstract: A positive electrode active material for use in a non-aqueous electrolyte secondary cell comprises a powdery metal oxide (LiCoO2, LiNiO2, LiMn2O4 or the like). When the positive electrode active material is classified with a classification precision index κ of 0.7 or greater so as to obtain a coarse powder having a classification ratio in a range of 0.1% to 5%, a ratio (B/A) of the content (B) of an impurity metal element in the coarse powder obtained by the classification to the content (A) of the impurity metal element in the powder before the classification is 1.5 or less. The contents of the impurity metal elements are compared with respect to Ca, Mn, Fe, Cr, Cu, Zn and the like (exclusive of the metal element constituting the powdery metal oxide). The positive electrode active material for a secondary cell serves to improve cell performance capabilities and production yields.

Abstract translation: 用于非水电解质二次电池的正极活性物质包括粉末状金属氧化物（LiCoO 2 N 2，LiNiO 2 N 2，LiMn 2 N 2， O 4等等）。 当将正极活性物质分类为0.7以上的分类精度指数κ以得到分级比例为0.1〜5％的粗粉末时，含量（B / A） B）分类后的粉末中的杂质金属元素的含量（A）得到的粗粉末中的杂质金属元素为1.5以下。 相对于Ca，Mn，Fe，Cr，Cu，Zn等（不包括构成粉末金属氧化物的金属元素）来比较杂质金属元素的含量。 用于二次电池的正极活性材料用于提高电池性能和生产率。

公开(公告)号：US07455933B2

公开(公告)日：2008-11-25

申请号：US11121111

申请日：2005-05-04

Applicant: Nao Shimura ,  Koshin Tanaka ,  Masahiro Sekino ,  Asako Satoh ,  Shusuke Inada ,  Akira Yajima ,  Masayuki Oguchi

Inventor： Nao Shimura ,  Koshin Tanaka ,  Masahiro Sekino ,  Asako Satoh ,  Shusuke Inada ,  Akira Yajima ,  Masayuki Oguchi

IPC: H01M4/58 ,  H01M4/00

CPC classification number: H01M4/525 ,  H01M4/131 ,  H01M10/0567 ,  H01M2004/021

Abstract: A nonaqueous electrolyte secondary battery includes a nonaqueous electrolyte and a positive electrode including an active material containing lithium composite oxide powder, the lithium composite oxide powder includes secondary particles, exhibits a peak intensity ratio satisfying the following formula (4), satisfies the following formula (5), and has a particle distribution wherein a particle diameter at a volumetric cumulative frequency of 90% (D90) falls within the range of 10 to 25 m, and the nonaqueous electrolyte contains a sultone compound including a ring having at least one double bond; 2≦(I003/I104)

Abstract translation: 非水电解质二次电池包括非水电解质和包含含有锂复合氧化物粉末的活性物质的正极，所述锂复合氧化物粉末包括二次粒子，表现出满足下式（4）的峰强度比，满足下式（ 5），并且具有体积累积频率为90％（D90）的粒径在10〜25μm的范围内的粒子分布，非水电解质含有包含具有至少一个双键的环的磺内酯化合物 ; <？in-line-formula description =“In-line Formulas”end =“lead”？> 2 <=（I 003 / I < ）<？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？> 0.95 <=（X <= 1.02。 （5）<？in-line-formula description =“In-line Formulas”end =“tail”？>

公开(公告)号：US06753112B2

公开(公告)日：2004-06-22

申请号：US10024341

申请日：2001-12-21

Applicant: Yasumasa Ooya ,  Ryo Sakai ,  Koshin Tanaka ,  Kazuki Amemiya ,  Hajime Takeuchi ,  Yasuhiro Shirakawa ,  Shouta Endou

Inventor： Yasumasa Ooya ,  Ryo Sakai ,  Koshin Tanaka ,  Kazuki Amemiya ,  Hajime Takeuchi ,  Yasuhiro Shirakawa ,  Shouta Endou

IPC: H01M462

CPC classification number: H01M4/131 ,  H01M4/133 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M4/624 ,  H01M4/625 ,  H01M10/0525 ,  H01M10/0587 ,  H01M2004/021 ,  Y02T10/7011

Abstract: The present invention provides a positive electrode active material comprising: a positive electrode active material body; and at least one of oxide particles and carbon particles each having an average diameter of 1 &mgr;m or less; wherein at least one of oxide particles and carbon particles are adhered to a surface of the positive electrode active material body. I is preferable that a mass of the oxide particles adhered to the positive electrode material body is 0.001-2% of a mass of the positive electrode active material body. According to the above structure, there can be provided a positive electrode active material and non-aqueous secondary battery using the same capable of increasing a molding density (packing density) of the active material in a positive electrode, and capable of improving discharging rate characteristic of the battery by lowering an impedance of the electrode.

Abstract translation: 本发明提供一种正极活性物质，其包含：正极活性物质体; 以及平均粒径为1μm以下的氧化物粒子和碳粒子中的至少一种， 其中氧化物颗粒和碳颗粒中的至少一种粘附到所述正极活性物质体的表面。 优选粘附在正极材料体上的氧化物粒子的质量为正极活性物质体的质量的0.001〜2％。 根据上述结构，可以提供一种正极活性物质和使用该正极活性物质的非水二次电池，能够提高活性物质在正极中的成型密度（堆积密度），能够提高放电特性 通过降低电极的阻抗。