公开(公告)号：JP2008140747A

公开(公告)日：2008-06-19

申请号：JP2006328635

申请日：2006-12-05

Applicant: Sony Corp ,  ソニー株式会社

Inventor： WATANABE HARUO ,  SAGANE MASAYOSHI ,  MORITA KOSHI ,  HOSOYA YOSUKE

IPC: H01M10/05 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M10/44

CPC classification number: Y02P70/54

Abstract: PROBLEM TO BE SOLVED: To realize an excellent charge/discharge cycle with high stability and high capacity, even in case a nonaqueous electrolyte secondary battery is used with a high charging voltage of ≥4.25 V.
SOLUTION: On at least a part of a surface of a complex oxide particle with an average composition expressed in a chemical formula 1: Li
(1+x) Co
(1-y) MyO
(2-z) , a coating layer containing a metal oxide mainly composed of an oxide of Nickel (Ni) containing lithium (Li), manganese (Mn) and cobalt (Co) with molybdenum ion without crystal phases, is provided. In addition, binding energy of 3d5/2 by XPS (X-ray Photoelectron Spectroscopy) of a molybdenum ion contained in the coating layer is structured to be ≤232.4 eV. Such a coating layer is formed by coating mixed powder made by pulverizing a metal compound mainly composed of Li, Ni, Mn and Mo on the surface of complex oxide particles, and calcining it.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了实现具有高稳定性和高容量的优异的充放电循环，即使在具有≥4.25V的高充电​​电压的情况下使用非水电解质二次电池的情况下。解决方案：在 具有以化学式1表示的平均组成的复合氧化物颗粒的表面的至少一部分：Li（SB）（1 + x）（1-y） SB（2-z），包含主要由含有锂（Li），锰（Mn）和钴（Co）的镍（Ni）的氧化物形成的金属氧化物的涂层与不含结晶相的钼离子 ，被提供。 此外，通过XPS（X射线光电子能谱法）将包含在涂层中的钼离子的结合能3d5 / 2构成为≤232.4eV。 通过将主要由Li，Ni，Mn和Mo组成的金属化合物粉碎成复合氧化物颗粒表面而制备的混合粉末，并对其进行煅烧，形成这样的涂层。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007103119A

公开(公告)日：2007-04-19

申请号：JP2005289973

申请日：2005-10-03

Applicant: Sony Corp ,  ソニー株式会社

Inventor： HOSOYA YOSUKE

IPC: H01M4/02 ,  H01M4/131 ,  H01M4/1315 ,  H01M4/36 ,  H01M4/485 ,  H01M10/05 ,  H01M10/052

CPC classification number: Y02E60/122

Abstract: PROBLEM TO BE SOLVED: To provide a positive electrode material capable of enhancing reversibility of lithium ions and to provide a positive electrode and a battery using the positive electrode material. SOLUTION: The positive electrode 21 and a negative electrode 22 are faced through a separator 23. The positive electrode 21 contains a lithium transition metal composite oxide, carbon fluoride, and lithium fluoride. The reversibility of lithium is enhanced, and battery characteristics can be enhanced even under high temperature environment or even if charging voltage is increased. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供能够提高锂离子的可逆性的正极材料，并提供使用正极材料的正极和电池。 正极21和负极22通过隔板23面对。正极21含有锂过渡金属复合氧化物，氟化碳，氟化锂。 锂的可逆性提高，即使在高温环境下甚至即使充电电压增加也可以提高电池特性。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2007066745A

公开(公告)日：2007-03-15

申请号：JP2005252355

申请日：2005-08-31

Applicant: Sony Corp ,  ソニー株式会社

Inventor： HOSOYA YOSUKE

IPC: H01M4/02 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M10/05 ,  H01M10/052

CPC classification number: Y02E60/122

Abstract: PROBLEM TO BE SOLVED: To provide a cathode active material improved in chemical stability; and to provide a cathode and a battery using the same. SOLUTION: The cathode 21 contains a particulate cathode active material represented by Li a+1 Co 1-b-c Ni b M c O 2-x X y (M is Mn, Ti, V, Cr, Fe, Cu, Zn, Mo, Sn, Sb, Bi, Ca, Sr, W, Nb, Y, Zr, Mg, Al, B, Si or Ga; X is a halogen; -0.2≤a≤0.2, 0.01≤b≤0.4, 0≤c≤0.3, -0.1≤x≤0.2 and 0≤y≤0.1; and c+y>0). The cathode active material has the surface layer containing more excessive contents of Ni and M or X than the core part; the surface layer has a region where the atom ratio R1=Ni(M+X) increases toward the core part more than that of the particle surface. The atom ratio R2=(M+X)/(Co+Ni+M+X) at the particle surface is ≥10 atom%. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供改善化学稳定性的阴极活性材料; 并提供使用其的阴极和电池。

解决方案：阴极21含有由LiSa + 1 / Sb> 1-bc B M SB表示的颗粒状正极活性物质 （M是Mn，Ti，V，Cr，Fe，Cu，Zn，Mo，Sn，Sb，Bi）中的至少一种 ，Ca，Sr，W，Nb，Y，Zr，Mg，Al，B，Si或Ga; X为卤素;-0.2≤a≤0.2,0.01≤b≤0.4,0≤c≤0.3，-0.1≤ x≤0.2,0≤y≤0.1; c + y> 0）。 阴极活性材料的表层含有比核心部分更多的Ni和M或X含量过多的表面层; 表面层具有比颗粒表面的原子比R1 = Ni（M + X）朝核心部分增加的区域。 粒子表面的原子比R2 =（M + X）/（Co + Ni + M + X）≥10原子％。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2006344425A

公开(公告)日：2006-12-21

申请号：JP2005167212

申请日：2005-06-07

Applicant: SONY CORP

Inventor： HOSOYA YOSUKE

IPC: H01M4/02 ,  H01M4/131 ,  H01M4/1315 ,  H01M4/505 ,  H01M4/525 ,  H01M10/05 ,  H01M10/052

Abstract: PROBLEM TO BE SOLVED: To provide a cathode activator capable of improving battery characteristics even at a circumstance of high temperature, and a cathode and a battery using the same. SOLUTION: The cathode 21 contains the cathode activator having average composition expressed by Li a+1 Ni (1-b-c) Mn b M c O (2-x) F y , wherein, M denotes Co, Mg, Al, B, Ti, V, Cr, Fe, Cu, Zn, Mo, Sn, Ca, Sr, W, Nb, Y, or Zr; and a, b, c, x, and y fulfills -0.1≤a≤0.1, 0,005≤b≤0.4, 0≤c≤0.35, -0.1≤x≤0.2, 0≤y≤0.1 respectively. Excessive fluorine exists on the surface of the cathode activator particle comparing with that existing inside the particle. On x-ray absorption end fine structure spectrum, in a state that 80 mol% of lithium is released, intermediate point of absorbance at K-shell absorption end of nickel is sifted by 1.1 eV or more. COPYRIGHT: (C)2007,JPO&INPIT

公开(公告)号：JP2006331941A

公开(公告)日：2006-12-07

申请号：JP2005156031

申请日：2005-05-27

Applicant: Sony Corp ,  ソニー株式会社

Inventor： WATANABE HARUO ,  HOSOYA YOSUKE ,  SOMA MASANORI ,  OYAMA YUUDAI

IPC: H01M4/02 ,  C01G51/00 ,  C01G53/00 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M10/05

CPC classification number: Y02E60/122

Abstract: PROBLEM TO BE SOLVED: To provide a positive electrode active material with enhanced capacity and improved cycle characteristics, as well as a positive electrode and a battery using the same. SOLUTION: The positive electrode 21 is complex oxide particles expressed in Li (1+w) Co (1-x-y) M1 x M2 y O (2-z) containing a positive electrode active material equipped with oxide containing Ni or Mn. M1 is at least a kind out of Mg, Al, Ti, and Zr, M2 is at least a kind out of B, V, Cr, Mn, Fe, Ni, Cu, Zn, Mo, Sn, W, Y, Nb, Ca, and Sr, satisfying: -0.10≤w≤0.10, 0.001 COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供具有增强的容量和改进的循环特性的正极活性材料，以及使用其的正极和电池。 解决方案：正极21是在Li（SB）（1 + w）（1-xy）中表示的复合氧化物颗粒M1 x 含有含有Ni或Mn的氧化物的正极活性物质的M2 y O（SB）（2-z）。 M1至少是Mg，Al，Ti和Zr中的一种，M2是B，V，Cr，Mn，Fe，Ni，Cu，Zn，Mo，Sn，W，Y，Nb中的至少一种 ，Ca和Sr满足：-0.10≤w≤0.10,0.001

公开(公告)号：JP2006134770A

公开(公告)日：2006-05-25

申请号：JP2004324147

申请日：2004-11-08

Applicant: Sony Corp ,  ソニー株式会社

Inventor： SUZUKI HIROYUKI ,  TANAKA TAKEHIKO ,  KONISHI YOSUKE ,  RI KOKUKA ,  MIZUTANI SATOSHI ,  HOSOYA YOSUKE

IPC: H01M4/02 ,  H01M4/06 ,  H01M4/131 ,  H01M4/136 ,  H01M4/525 ,  H01M4/58 ,  H01M6/16 ,  H01M10/05

CPC classification number: H01M10/052 ,  H01M2/021 ,  H01M2/0212 ,  H01M2/30 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/136 ,  H01M4/1391 ,  H01M4/1397 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/0525 ,  H01M10/0587

Abstract: PROBLEM TO BE SOLVED: To provide a cathode capable of improving battery characteristics, such as continuous charging characteristics or high-temperature preservation characteristics, and to provide a battery that uses the same. SOLUTION: An active material layer 12 is of a multi-layer structure laminating a first layer 12A containing a first active material and a second layer 12B containing a second active material. As the first active material, LiNO 2 or the like is preferable, and as the second active material, LiFePO 4 or the like, having thermal stability higher than the first active material is preferable. With this, thermal stability can be improved, without degrading on the capacity, and degradation in the capacity due to oxidation of a separator or the like can be restrained. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种能够改善诸如连续充电特性或高温保存特性的电池特性的阴极，并提供使用该阴极的电池。 解决方案：活性物质层12是层叠含有第一活性物质的第一层12A和含有第二活性物质的第二层12B的多层结构。 作为第一活性物质，优选LiNO 2 SBS等，作为第二活性物质，具有高于第一活性物质的热稳定性的LiFePO 4 SBO等 优选。 由此，可以提高热稳定性，而不会降低容量，并且可以抑制由于隔板等的氧化而引起的容量的劣化。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2005228706A

公开(公告)日：2005-08-25

申请号：JP2004038730

申请日：2004-02-16

Applicant: Sony Corp ,  ソニー株式会社

Inventor： HOSOYA YOSUKE

IPC: H01M2/16 ,  H01M4/02 ,  H01M4/36 ,  H01M4/485 ,  H01M4/525 ,  H01M10/05 ,  H01M10/38 ,  H01M4/58 ,  H01M10/40

CPC classification number: H01M4/525 ,  H01M4/131 ,  H01M4/364 ,  H01M4/366 ,  H01M4/485 ,  H01M4/505 ,  H01M10/0525 ,  H01M10/0587

Abstract: PROBLEM TO BE SOLVED: To improve both properties in high temperature operation and in large current discharge. SOLUTION: A nonaqueous electrolyte battery has a positive electrode 2 composed of a positive collector and a positive electrode active material layer formed on the collector. The active material contained in the material layer is made by mixing a first and a second compound oxides. The first compound oxide is composed of particles made of a first lithium-transition metal compound oxide containing at least nickel as a transition metal and a coating layer formed on at least a part of surfaces of the particles and restrains decomposition of an electrolyte by the first lithium-transition metal compound oxide. The second compound oxide is composed of particles made of a second lithium-transition metal compound oxide. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提高高温运行和大电流放电的性能。 解决方案：非水电解质电池具有由集电体形成的正极集电体和正极活性物质层构成的正极2。 包含在材料层中的活性材料通过混合第一和第二复合氧化物而制成。 第一复合氧化物由至少含有镍作为过渡金属的第一锂 - 过渡金属复合氧化物形成的颗粒和形成在颗粒表面的至少一部分上的涂层组成，并且通过第一 锂 - 过渡金属复合氧化物。 第二复合氧化物由由第二锂 - 过渡金属复合氧化物制成的颗粒组成。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2004319105A

公开(公告)日：2004-11-11

申请号：JP2003107509

申请日：2003-04-11

Applicant: Sony Corp ,  ソニー株式会社

Inventor： HOSOYA YOSUKE ,  YAMAMOTO YOSHIKATSU

IPC: H01M10/05 ,  H01G4/008 ,  H01M4/00 ,  H01M4/02 ,  H01M4/36 ,  H01M4/485 ,  H01M4/525 ,  H01M10/00 ,  H01M10/38 ,  H01M4/58 ,  H01M10/40

CPC classification number: H01M4/485 ,  H01M4/131 ,  H01M4/133 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0587 ,  H01M2004/021

Abstract: PROBLEM TO BE SOLVED: To combine lithium ion conductivity with high temperature characteristics in a positive active material using a lithium nickel composite oxide.
SOLUTION: The positive active material is made by forming a covering layer containing the composite oxide in at least a part of the surface of particles containing the composite oxide. The particles contain a first composite oxide having layer structure and mainly comprising lithium and nickel. The covering layer contains a second composite oxide mainly comprising lithium and titanium. The weight ratio of the first composite oxide to the second composite oxide is 96:4 to 65:35. The average particle size of the positive active material is 5 μm to 20 μm.
COPYRIGHT: (C)2005,JPO&NCIPI

公开(公告)号：JP2004111076A

公开(公告)日：2004-04-08

申请号：JP2002268357

申请日：2002-09-13

Applicant: Sony Corp ,  ソニー株式会社

Inventor： SATO TAKASHI ,  YAMAMOTO YOSHIKATSU ,  HOSOYA YOSUKE

IPC: H01M10/05 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M4/02 ,  H01M10/40

CPC classification number: Y02E60/122

Abstract: PROBLEM TO BE SOLVED: To provide a positive electrode activve material by which a nonaqueous electrolyte lithium ion secondary battery with high capacity and excellent cycle property can be manufactured, and to provide a nonaqueous electrolyte lithium ion secondary battery using the same.
SOLUTION: The positive electrode active material contains a lithium compound oxide having electron conductivity σ satisfying the relation; 10
-4 ≤σ≤10
-1 S/cm, expressed by general formula; Li
x Ni
(1-Y-Z) Co
Y Mn
Z A
a O
2 (1) (in the formula, A represents an element like Fe, V, Cr, Mn, Ti, Mg, Al, B, or Ca, and X, Y, Z satisfy the relations 0.05≤X≤1.10, 0.10≤Y+Z≤0.70, 0.05≤Z≤0.40, 0≤a≤0.1 respectively). The nonaqueous electrolyte lithium ion secondary battery comprises a positive electrode and a negative electrode containing positive electrode active material and negative electrode active material respectively which can dope and dedope lithium ions and a nonaqueous electrolyte with an electrolyte dispersed in a nouaqueous medium, of which, the positive electrode active material contains the lithium compound oxide.
COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2001202960A

公开(公告)日：2001-07-27

申请号：JP2000010206

申请日：2000-01-14

Applicant: SONY CORP

Inventor： KOGA KEIZO ,  HOSOYA YOSUKE ,  KUYAMA JUNJI ,  NAGAMINE MASAYUKI

IPC: H01M10/05 ,  H01M4/02 ,  H01M4/36 ,  H01M4/485 ,  H01M4/505 ,  H01M4/58 ,  H01M6/10 ,  H01M10/0525 ,  H01M10/40

Abstract: PROBLEM TO BE SOLVED: To provide a positive electrode material, of which characteristics in charge and discharge cycle, quality preservation characteristics and discharge load characteristics are improved, and to provide a secondary battery using it. SOLUTION: A wound electrode 20, made by winding positive 21 and negative electrode bands 22 via separators 23 is settled in a battery can 11. The separator is impregnated with an electrolytic solution. The positive electrode is composed of a positive electrode material, which has a center part formed of a lithium composite oxide, such as LiMn2O4 and a covering part on the surface of the center part. The covering part is formed of an ITO or an electroconductive oxide such as SnO2. Quantity of the covering part is more than 0.001 mol and less than 0.1 mol for the center part of 1 mol. This restrains dissolution of the positive electrode material into the electrolytic solution, with conserved conductivity and prevents precipitation and accumulation of reaction products on the positive electrode due to repeated charging and discharging operation.