公开(公告)号：DE69531901T2

公开(公告)日：2004-08-05

申请号：DE69531901

申请日：1995-07-07

Applicant: MITSUI CHEMICALS INC ,  SONY CORP

Inventor： YOKOYAMA KEIICHI ,  FUJITA SHIGERU ,  HIWARA AKIO ,  NARUSE YOSHIAKI ,  TORIIDA MASAHIRO ,  OMARU ATSUO

IPC: H01M6/16 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/40

公开(公告)号：DE69205542D1

公开(公告)日：1995-11-23

申请号：DE69205542

申请日：1992-04-24

Applicant: SONY CORP

Inventor： YAMAMOTO YOSHIKATSU ,  FUJITA SHIGERU ,  KATO HISAYUKI

IPC: H01M2/34 ,  H01M4/52 ,  H01M4/525 ,  H01M10/052 ,  H01M10/36 ,  H01M10/42 ,  H01M10/40 ,  H01M4/58

Abstract: A nonaqueous electrolyte secondary battery in which, using Li x MO (where M is at least one of transition metals, preferably Co or Ni, and 0.05 & X & 1.10) as a positive electrode active material, the charge and discharge of the battery are performed by doping and dedoping lithium. The battery is provided with a means for shutting off current, which operates with the increase of the pressure of the inside of the battery. The means for shutting off current is operated surely by adding lithium carbonate to the positive electrode active material and by covering a part of the surface of the positive electrode with lithium carbonate. The quantity of lithium carbonate is 0.5-15 wt %, and the specific surface area is preferably 0.1 m /g or more.

公开(公告)号：CA2122092A1

公开(公告)日：1994-10-29

申请号：CA2122092

申请日：1994-04-25

Applicant: SONY CORP ,  MITSUI PETROCHEMICAL IND

Inventor： OMARU ATSUO ,  FUJITA SHIGERU ,  YOKOYAMA KEIICHI ,  HIHARA AKIO

IPC: H01M4/58 ,  H01M10/26

Abstract: 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.

公开(公告)号：JP2010129470A

公开(公告)日：2010-06-10

申请号：JP2008305201

申请日：2008-11-28

Applicant: Sony Corp ,  ソニー株式会社

Inventor： WATANABE HARUO ,  OYAMA YUUDAI ,  AZUMA HIDETO ,  FUJITA SHIGERU

IPC: H01M4/525 ,  H01M4/36 ,  H01M4/62

CPC classification number: Y02P70/54

Abstract: PROBLEM TO BE SOLVED: To suppress gas evolution in a nonaqueous electrolyte secondary battery. SOLUTION: A positive active material is manufactured by coating composite oxide particles mainly comprising lithium nicklate with a silicate compound and then conducting heat treatment. In the secondary battery using the positive active material manufactured in the process and having a carbonate ion content of 0.15 wt.% of less, gas evolution in the battery can be suppressed. The heat treatment is conducted at 300-1,200°C. As the silicate compound, colloidal silica is preferably used, 100 pts.wt. composite oxide particles are coated with 0.01-5.0 pts.wt. silicate compound, and heat treatment is conducted. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：抑制非水电解质二次电池中的气体逸出。 解决方案：通过将主要包含锂铌酸锂的复合氧化物颗粒与硅酸盐化合物一起涂覆，然后进行热处理来制造正极活性材料。 在使用在该方法中制造的正极活性物质并且碳酸盐离子含量为0.15重量％以下的二次电池中，可以抑制电池中的气体逸出。 热处理在300-1200℃进行。 作为硅酸盐化合物，优选使用胶体二氧化硅，100重量份 复合氧化物颗粒涂覆有0.01-5.0重量份 硅酸盐化合物，进行热处理。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2010055778A

公开(公告)日：2010-03-11

申请号：JP2008216379

申请日：2008-08-26

Applicant: Sony Corp ,  ソニー株式会社

Inventor： WATANABE HARUO ,  OYAMA YUUDAI ,  AZUMA HIDETO ,  FUJITA SHIGERU

IPC: H01M4/525 ,  C01G53/00 ,  H01M4/36

CPC classification number: Y02P70/54

Abstract: PROBLEM TO BE SOLVED: To provide a positive active material high in charge current capacity and excellent in charge discharge efficiency. SOLUTION: The positive active material is manufactured by adhering a molybdic acid compound to composite oxide particles mainly comprising lithium nickelate and heat-treating them. Preferably, at least one of a sulfuric acid compound, a nitric acid compound, a boric acid compound, and a phosphoric acid compound is adhered to the composite oxide particles together with the molybdic acid compound, and they are heat-treated. A secondary battery using the positive active material manufactured in this process and containing 0.15 wt.% or less carbonate ions suppresses the evolution of gas on the inside of a battery. Heat-treatment is conducted after a mixture of the molybdic acid compound and a compound other than the molybdic acid compound, such as a sulfuric acid compound is adhered to the composite oxide particles. Alternatively, the compound other than the molybdic acid compound, such as the sulfuric acid compound is adhered to the composite oxide particles, they are heat-treated, and then the molybdic acid compound is adhered and they are heat-treated. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供高电荷容量的正极活性物质和充电放电效率优异。 解决方案：通过将钼酸化合物粘附到主要包含镍酸锂的复合氧化物颗粒上并进行热处理来制造正极活性物质。 优选地，将硫酸化合物，硝酸化合物，硼酸化合物和磷酸化合物中的至少一种与钼酸化合物一起粘附到复合氧化物颗粒上，并进行热处理。 使用在该方法中制造的含有0.15重量％以下的碳酸盐离子的正极活性物质的二次电池抑制电池内部气体的逸出。 在将钼酸化合物和除了钼酸化合物以外的化合物（例如硫酸化合物）的混合物粘附到复合氧化物颗粒上之后进行热处理。 或者，除了硫酸化合物以外的化合物，例如硫酸化合物附着在复合氧化物粒子上，对其进行热处理，然后粘附钼酸化合物，进行热处理。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2010040382A

公开(公告)日：2010-02-18

申请号：JP2008203221

申请日：2008-08-06

Applicant: Sony Corp ,  ソニー株式会社

Inventor： WATANABE HARUO ,  OYAMA YUUDAI ,  AZUMA HIDETO ,  FUJITA SHIGERU

IPC: H01M4/525 ,  C01G53/00 ,  H01M4/36

CPC classification number: Y02P70/54

Abstract: PROBLEM TO BE SOLVED: To provide a positive electrode active material suppressing the generation of gas inside a battery. SOLUTION: A boric acid compound is attached to composite oxide particles mainly composed of lithium nickelate, and heat-treated to form the positive electrode active material. The generation of gas inside the battery can be suppressed in the secondary battery using the positive electrode active material manufactured by this method and having 0.15 wt.% or less of carbonate ion content and 0.01-5.0 wt.% of boric acid ion content. Heat treatment is performed at 150-1,200°C. Ammonium borate, lithium borate or their mixed salt is used as the boric acid compound, and 0.01-5.0 wt.% of the boric acid compound is attached to 100 pts.wt. of composite oxide particles and heat-treated. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种抑制电池内气体产生的正极活性物质。 解决方案：将硼酸化合物连接到主要由镍酸锂组成的复合氧化物颗粒上，并进行热处理以形成正极活性物质。 使用该方法制造的正极活性物质，可以抑制二次电池内的气体的产生，并且具有0.15重量％以下的碳酸根离子含量和0.01-5.0重量％的硼酸离子含量。 热处理在150-1200℃进行。 使用硼酸铵，硼酸锂或其混合盐作为硼酸化合物，将0.01-5.0重量％的硼酸化合物连接至100重量份。 的复合氧化物颗粒进行热处理。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2010027482A

公开(公告)日：2010-02-04

申请号：JP2008189429

申请日：2008-07-23

Applicant: Sony Corp ,  ソニー株式会社

Inventor： WATANABE HARUO ,  OYAMA YUUDAI ,  AZUMA HIDETO ,  FUJITA SHIGERU

IPC: H01M4/525 ,  H01M4/36 ,  H01M4/505

CPC classification number: Y02P70/54

Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a positive electrode active material, which can restrain generation of a gas in a battery and has high charged current capacity and is excellent on charge and discharge efficiency; and to provide the positive electrode active material. SOLUTION: The positive electrode active material is prepared by coating and heating a vanadium compound on composite oxide particles made of lithium nickel oxide as a principal component. It is preferable that it is heated by coating at least one of a sulphuric acid compound, a nitric acid compound, a boric acid compound, and a phosphoric acid compound as well as the vanadium compound on the composite oxide particles. Generation of a gas in the battery can be restrained in a secondary battery using the positive electrode active material manufactured by such the method and having the content of carbonate ions of 0.15 wt.% or below. Heating treatment is carried out after coating on the composite oxide particles by mixing the vanadium compound and a compound such as the sulphuric acid compound excluding the vanadium compound. Furthermore, it is preferable that it is heated after coating a compound such as the sulphuric acid compound excluding the vanadium compound on the composite oxide particles, and then, it is heated after coating the vanadium compound on the composite oxide particles. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 解决的问题：提供一种制造正极活性物质的方法，其能够抑制电池中的气体的产生，并且具有高的充电电流容量，并且充放电效率优异; 并提供正极活性物质。 解决方案：正极活性物质是通过在由锂镍氧化物作为主要成分的复合氧化物颗粒上涂覆和加热钒化合物制备的。 优选通过在复合氧化物粒子上涂布硫酸化合物，硝酸化合物，硼酸化合物和磷酸化合物中的至少一种以及钒化合物来加热。 使用由该方法制造的正极活性物质，碳酸根离子的含量为0.15重量％以下，可以在二次电池中抑制电池中的气体的产生。 通过混合钒化合物和除钒化合物以外的硫酸化合物等化合物，在复合氧化物粒子上涂布后进行加热处理。 此外，优选在复合氧化物粒子上涂布除了钒化合物以外的硫酸化合物等化合物，然后在将复合氧化物粒子上涂覆钒化合物之后进行加热。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009193745A

公开(公告)日：2009-08-27

申请号：JP2008031344

申请日：2008-02-13

Applicant: Sony Corp ,  ソニー株式会社

Inventor： WATANABE HARUO ,  OYAMA YUUDAI ,  AZUMA HIDETO ,  FUJITA SHIGERU

IPC: H01M4/505 ,  C01G53/00 ,  H01M4/525

CPC classification number: H01M4/131 ,  H01M4/139 ,  H01M4/485 ,  H01M4/525 ,  H01M2004/028

Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a positive electrode active material for a non-aqueous electrolyte secondary battery with high capacity and excellent charge-discharge efficiency. SOLUTION: A solution such as, for example, oxo acid or the like, including a deposition component is deposited onto composite oxide particles including lithium (Li) and nickel (Ni), the deposition component is precipitated on surfaces of the composite oxide particles by drying the composite oxide particles on which the deposition component is deposited as a solution, and the composite oxide particles with the deposition component precipitated on the surfaces thereof is heat-treated under an oxidizing atmosphere. Deposition and drying of the solution are carried out to the overheated composite oxide particles by a method of atomizing the solution including the deposition component. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 解决的问题：提供一种高容量，充放电效率优异的非水电解质二次电池用正极活性物质的制造方法。 解决方案：将包含沉积组分的溶液，例如含氧酸等沉积在包括锂（Li）和镍（Ni）的复合氧化物颗粒上，沉积组分沉淀在复合材料的表面上 通过将其上沉积有沉积组分的复合氧化物颗粒干燥作为溶液，并将沉积组分沉淀在其表面上的复合氧化物颗粒在氧化气氛下进行热处理。 通过使包含沉积成分的溶液雾化的方法，将溶液的沉积和干燥进行到过热复合氧化物粒子。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2007220630A

公开(公告)日：2007-08-30

申请号：JP2006042888

申请日：2006-02-20

Applicant: Sony Corp ,  ソニー株式会社

Inventor： RI KOKUKA ,  AZUMA HIDETO ,  FUJITA SHIGERU ,  OGISU KENJI

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

CPC classification number: Y02E60/122

Abstract: PROBLEM TO BE SOLVED: To provide a positive electrode active material realizing a large discharge capacity and capable of obtaining excellent charge and discharge characteristics at high voltage, and a battery using the same. SOLUTION: The battery is provided with a positive electrode and a negative electrode we well as electrolyte, and the positive electrode contains a lithium compound oxide having a composition as expressed by Li 1+a [Mn b Co c Ni (1-b-c) ] (1-a) O (2-d) (in the formula, 0.05≤a COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供一种实现大放电容量且能够获得高电压的优异充放电特性的正极活性物质，以及使用该正电极活性物质的电池。 解决方案：电池具有正电极和负极以及电解质，正极含有具有由Li＆lt; SB＆gt; 1 + a 表示的组成的锂复合氧化物[Mn b'/ SB>钴 C 的Ni （1-BC）] （1-a）的 0 （2- d）（式中，0.05≤a<0.25,0.5≤b<0.7,0≤c<（1-b），-0.1≤d≤0.2）。 因此，在充电时获得大的电容，并且在充电之后，在晶体结构中保留一定量的锂，从而保持晶体结构的稳定性。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2007018743A

公开(公告)日：2007-01-25

申请号：JP2005195992

申请日：2005-07-05

Applicant: Sony Corp ,  ソニー株式会社

Inventor： WATANABE HARUO ,  AZUMA HIDETO ,  FUJITA SHIGERU ,  OYAMA YUUDAI ,  SOMA MASANORI

IPC: H01M4/62 ,  H01M4/02 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M10/05

CPC classification number: Y02P70/54

Abstract: PROBLEM TO BE SOLVED: To provide a positive electrode active material, a manufacturing method of the same, and a battery using the same capable of improving chemical stability by suppressing binding between particles. SOLUTION: A positive electrode 21 contains the positive electrode active material formed by providing a coating layer containing oxide including at least one of Li, Ni, Mn on composite oxide particles expressed by Li 1+x Co 1-y M y O 2-z . M is at least one of Mg, Al, B, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, Mo, Sn, W, Zr, Y, Nb, Ca, Sr, and -0.10≤x≤0.10, 0≤y COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供一种正极活性物质及其制造方法，以及通过抑制粒子间的结合能够提高化学稳定性的电池。 解决方案：正极21包含正极活性物质，所述正极活性物质是通过在由Li＆lt; SB＆gt; 1 + x＆lt; / SB＆gt;表示的复合氧化物颗粒上提供含有包含Li，Ni，Mn中的至少一种的氧化物的涂层而形成的， 共 1-Y 中号ý 0 2-Z 。 M是Mg，Al，B，Ti，V，Cr，Mn，Fe，Ni，Cu，Zn，Mo，Sn，W，Zr，Y，Nb，Ca，Sr和-0.10≤x≤ 0.10,0≤y<0.50，-0.10≤z≤0.20。 此外，在涂层上形成由含有Al的氧化物形成的表面层。 版权所有（C）2007，JPO＆INPIT