公开(公告)号：JP2005268230A

公开(公告)日：2005-09-29

申请号：JP2005132843

申请日：2005-04-28

Applicant: Sony Corp ,  ソニー株式会社

Inventor： NARUSE YOSHIAKI ,  FUJITA SHIGERU ,  KOMARU TOKUO

IPC: H01M10/05 ,  H01M4/38 ,  H01M4/587 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0569 ,  H01M10/40 ,  H01M4/02 ,  H01M4/58

CPC classification number: Y02E60/122

Abstract: PROBLEM TO BE SOLVED: To achieve a non-aqueous liquid electrolyte secondary cell having a high energy density and exerting an excellent cyclic property in a variety environments at use including a low-temperature environment.
SOLUTION: A non-aqueous liquid electrolyte secondary cell includes a negative electrode composed of either metal lithium or hardly graphitizable carbon material, a positive electrode, and a non-aqueous liquid electrolyte formed by an electrolyte dissolved in a non-aqueous solvent. A vinylene carbonate is used as a high-permittivity solvent of the non-aqueous solvent. It is preferable that the nonaqueous solvent contains the vinylene carbonate at a rate of not less than 20 vol.% and not higher than 60 vol.% and the remaining is a cyclic ester.
COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 解决的问题：为了实现具有高能量密度的非水电解液二次电池，并且在包括低温环境的使用的各种环境中发挥优异的循环性能。 解决方案：非水电解液二次电池包括由金属锂或难以石墨化的碳材料构成的负极，正电极和由溶解在非水溶剂中的电解质形成的非水电解液 。 碳酸亚乙烯酯用作非水溶剂的高介电常数溶剂。 优选非水溶剂以不低于20体积％且不高于60体积％的速率含有碳酸亚乙烯酯，剩余的是环状酯。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2005005116A

公开(公告)日：2005-01-06

申请号：JP2003166862

申请日：2003-06-11

Applicant: Sony Corp ,  ソニー株式会社

Inventor： AOKI MASAHIRO ,  FUJITA SHIGERU ,  ADACHI MOMOE ,  AKASHI HIROYUKI ,  NARUSE YOSHIAKI

IPC: H01M10/05 ,  H01M4/505 ,  H01M4/525 ,  H01M4/583 ,  H01M10/0525 ,  H01M10/056 ,  H01M10/0565 ,  H01M10/0568 ,  H01M10/0587 ,  H01M10/40 ,  H01M4/02 ,  H01M4/58

CPC classification number: Y02P70/54

Abstract: PROBLEM TO BE SOLVED: To provide a battery in which swelling can be suppressed even if it is stored under a high temperature environment.
SOLUTION: A wound electrode body 20 in which a positive electrode 21 and a negative electrode 22 are laminated and wound around via a separator 23 and an electrolyte 24 is housed in the interior of sheath members 30A, 30B of a film shape. The electrolyte 24 includes a retainer, and an electrolytic solution where an electrolyte salt is dissolved in a solvent. As the electrolyte salt, a light metal salt having an B-O bond or a P-O bond such as difluoro [oxalate-O,O'] lithium borate and tetrafluoro [oxalate-O,O'] lithium phosphate are used. Decomposition reaction of the solvent and generation of gas can be suppressed by formation of stable coatings even under high temperature environments.
COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供即使在高温环境下储存也可以抑制溶胀的电池。 解决方案：其中正极21和负极22经由隔板23和电解质24层叠并缠绕的卷绕电极体20容纳在膜形状的护套构件30A，30B的内部。 电解质24包括保持器和其中电解质盐溶解在溶剂中的电解液。 作为电解质盐，使用具有B-O键或P-O键的轻金属盐，例如二氟[草酸酯-O，O']硼酸锂和四氟[草酸酯-O，O']磷酸锂。 即使在高温环境下也可以通过形成稳定的涂层来抑制溶剂的分解反应和气体的产生。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2005005115A

公开(公告)日：2005-01-06

申请号：JP2003166860

申请日：2003-06-11

Applicant: Sony Corp ,  ソニー株式会社

Inventor： AOKI MASAHIRO ,  FUJITA SHIGERU ,  ADACHI MOMOE ,  AKASHI HIROYUKI ,  NARUSE YOSHIAKI

IPC: H01M4/131 ,  H01M4/133 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/05 ,  H01M10/0525 ,  H01M10/056 ,  H01M10/0565 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0587 ,  H01M10/40 ,  H01M4/02 ,  H01M4/58

CPC classification number: Y02E60/122

Abstract: PROBLEM TO BE SOLVED: To provide an electrolyte and a battery using it wherein battery characteristics such as battery capacity, cycle characteristic, and storage characteristic can be improved.
SOLUTION: This battery is provided with a wound electrode body 20 around which a positive electrode 21 and a negative electrode 22 are wound via a separator 23. An electrolytic solution containing a solvent and electrolyte salts is impregnated into the separator 23. As the electrolyte salts, a light metal salt having an M-X bond (wherein M expresses transition metal element or 3B group element, 4B group element or 5B group element in the short period periodic table, and X expresses oxygen or sulfur) such as difluoro [oxalate-O,O'] lithium borate, tetrafluoro [oxalate-O,O'] lithium phosphate is used. As an additive, carbonic acid ester of unsaturated compound such as vinylene carbonate or vinyl ethylene carbonate is used. While suppressing decomposition reaction of the light metal salt having the M-X bond to the necessary minimum, decomposition reaction of the solvent can be suppressed by formation of stable coatings.
COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：为了提供使用其的电解质和电池，可以提高电池容量，循环特性和存储特性等电池特性。 解决方案：该电池设置有缠绕电极体20，正极21和负极22通过隔板23缠绕在其上。含有溶剂和电解质盐的电解液浸渍在隔板23中。作为 电解质盐，具有MX键的金属盐（其中M表示过渡金属元素或3B族元素，短周期表中的4B族元素或5B族元素，X表示氧或硫），例如二氟[草酸酯 -O，O']硼酸锂，四氟[草酸盐 - O，O']磷酸锂。 作为添加剂，可以使用碳酸亚乙烯酯，碳酸乙烯酯等不饱和化合物的碳酸酯。 尽管抑制具有M-X键的轻金属盐的分解反应达到必要的最小值，但是通过形成稳定的涂层可以抑制溶剂的分解反应。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2002270232A

公开(公告)日：2002-09-20

申请号：JP2001073059

申请日：2001-03-14

Applicant: SONY CORP

Inventor： FUJITA SHIGERU ,  AKASHI HIROYUKI ,  ADACHI MOMOE ,  SHIBAMOTO GORO

IPC: H01M10/05 ,  H01M4/38 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/40 ,  H01M4/02 ,  H01M4/58

Abstract: PROBLEM TO BE SOLVED: To provide a cell that improves chemical stability of an electrolyte and cell characteristics. SOLUTION: The cell comprises a wound electrode body 20 of which, a belt-shaped positive electrode 21 and a negative electrode are wound with a separator 23 laid between. The negative electrode 22 is made so as to precipitate lithium metal through the process of discharge, and the capacity of the negative electrode 22, is expressed by the sum of the capacity component depending on the adsorption/release of lithium and the capacity component of the precipitation/dissolution of metallic lithium. The separator 23 is impregnated with electrolyte liquid containing electrolyte salt. The electrolyte salt contains a first lithium salt; LiC(Ch Fh2h+1 SO2 )(Ci F2i+1 SO2 )(Cj F2j+1 SO2 ) and a second lithium salt; LiPF6 and the like. By the above, chemical stability of the electrolyte is improved, side reaction is restrained, and discharge cycle property is improved.

公开(公告)号：JP2002270229A

公开(公告)日：2002-09-20

申请号：JP2001068818

申请日：2001-03-12

Applicant: SONY CORP

Inventor： FUJITA SHIGERU ,  AKASHI HIROYUKI ,  ADACHI MOMOE ,  SHIBAMOTO GORO

IPC: H01M10/05 ,  H01M4/38 ,  H01M4/40 ,  H01M4/42 ,  H01M4/44 ,  H01M4/46 ,  H01M4/54 ,  H01M4/56 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/40 ,  H01M4/02 ,  H01M4/48 ,  H01M4/58

Abstract: PROBLEM TO BE SOLVED: To provide a battery in which chemical stability of the electrolyte is improved and the battery characteristics can be improved. SOLUTION: The battery comprises a wound electrode body 20 in which a band-shaped positive electrode 21 and negative electrode 22 are wound through a separator 23 in between. In the negative electrode 22, a lithium metal is precipitated in the course of charging, and the capacity of the negative electrode 22 is expressed as a sum of the capacity content by occlusion and desorption of lithium and the capacity content by precipitation and dissolution of the lithium metal. In the separator 23, an electrolytic solution in which an electrolyte salt is dissolved in a solvent is impregnated, and the solvent contains a substance having the OCON structure such as 3-methyl-2-oxazolidinone or methyl-N, N-dimethylcarbamate. Thereby, the chemical stability of the electrolyte is improved, side reaction is suppressed, and the charge and discharge cycle characteristics is improved.

公开(公告)号：JP2002270228A

公开(公告)日：2002-09-20

申请号：JP2001068817

申请日：2001-03-12

Applicant: SONY CORP

Inventor： FUJITA SHIGERU ,  AKASHI HIROYUKI ,  ADACHI MOMOE ,  SHIBAMOTO GORO

IPC: H01M10/05 ,  H01M4/38 ,  H01M4/40 ,  H01M4/42 ,  H01M4/44 ,  H01M4/46 ,  H01M4/54 ,  H01M4/56 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/40 ,  H01M4/02 ,  H01M4/48 ,  H01M4/58

Abstract: PROBLEM TO BE SOLVED: To provide a battery in which chemical stability of the electrolyte is improved and the battery characteristics can be improved. SOLUTION: The battery comprises a wound electrolyte body 20 in which the band-shaped positive electrode 21 and negative electrode 22 are wound through a separator 23 in between. In the negative electrode 22, a lithium metal is precipitated in the course of charging, and the capacity of the negative electrode 22 is expressed by a sum of the capacity content by occlusion and desorption of lithium and the capacity content by precipitation and dissolution of the lithium metal. In the separator 23, an electrolyte in which electrolyte salt is dissolved in a solvent is impregnated, and the solvent contains a substance having the NCON structure such as 1,3dimethyl-2-imidazolidinone and 1,1,3,3-tetramethylurea. Thereby, the chemical stability of the electrolyte is improved, and side reaction is suppressed, and the charge and discharge cycle characteristics is improved.

公开(公告)号：JP2002134496A

公开(公告)日：2002-05-10

申请号：JP2000326165

申请日：2000-10-25

Applicant: SONY CORP

Inventor： FUJITA SHIGERU ,  YAMAGUCHI NOBUYUKI

IPC: C23C16/02 ,  H01L21/205 ,  H01L21/28 ,  H01L21/285 ,  H01L21/316

Abstract: PROBLEM TO BE SOLVED: To provide a manufacturing method for semiconductor devices, wherein a reliable semiconductor device can be manufactured by suppressing the effects brought from contaminats, so as to suppress deterioration of its gate withstanding voltage. SOLUTION: The manufacturing method for semiconductor devices where a film is formed on a processed substrate in a reaction chamber at a prescribed film-forming temperature has a process of carrying the processed substrate into the reaction chamber, a process of subjecting the processed substrate to a heat treatment by setting the temperature of the reaction chamber to one higher than the film-forming temperature, and a process for subjecting the processed substrate to the film-forming process by lowering the temperature of the reaction chamber down to the film-forming temperature.

公开(公告)号：JP2002093464A

公开(公告)日：2002-03-29

申请号：JP2000281887

申请日：2000-09-18

Applicant: SONY CORP

Inventor： AKASHI HIROYUKI ,  FUJITA SHIGERU

IPC: H01M10/04 ,  H01M4/13 ,  H01M4/133 ,  H01M6/10 ,  H01M6/16 ,  H01M10/05 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/42 ,  H01M10/40 ,  H01M4/02

Abstract: PROBLEM TO BE SOLVED: To provide a secondary battery capable of improving its characteristic by optimizing the relation between the thickness of a positive electrode mix layer and the thickness of a negative electrode mix layer. SOLUTION: A positive electrode 21 and a negative electrode 22 of a band shape are wound via a separator 23 to form a wound electrode body. A lithium metal is deposited on the negative electrode 22 during a charge, and the capacity of the negative electrode 22 is expressed by the sum of a capacity component by the storage and release of lithium and a capacity component by the deposition and dissolution of the lithium metal. The ratio A/B between the thickness A(Ad1+Ad2) of the positive electrode mix layer 21b and the thickness B(Bd1+ Bd2) of the negative mix layer 22b is made 0.92 or above. The lithium metal can be stably deposited on the negative electrode 22, and a high energy density and a satisfactory cycle characteristic can be stably obtained.

公开(公告)号：JP2001043894A

公开(公告)日：2001-02-16

申请号：JP21395299

申请日：1999-07-28

Applicant: SONY CORP

Inventor： FUJITA SHIGERU ,  NARUSE YOSHIAKI

IPC: H01M10/05 ,  C01B31/02 ,  C01B31/04 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M10/40 ,  H01M4/58

Abstract: PROBLEM TO BE SOLVED: To retard the oxidation reaction of a nonaqueous electrolyte and an electrode under high temperature and enhance cycle characteristics by including a specified ratio of a specific compound in a nonaqueous electrolyte. SOLUTION: A compound represented by the formula is contained in a nonaqueous electrolyte by 0.01-1 vol.%. In the formula, R1-R4 represent the same or different alkyl group or aryl group. The compound represented by the formula contained in the nonaqueous electrolyte reacts with the nonaqueous electrolyte to form a surface-covering layer on the surface of the electrode before an electrode active material and the nonaqueous electrolyte cause oxidation reaction, and retards deterioration of the electrode caused by the reaction of the electrode itself and the nonaqueous electrolyte. A nonaqueous electrolyte battery is constituted by stacking a belt-shaped negative electrode and a belt- shaped positive electrode through a separator, spirally winding them to form a wound electrode, and housing the wound electrode into a nickel-plated steel battery can.

公开(公告)号：JPH11307635A

公开(公告)日：1999-11-05

申请号：JP12830298

申请日：1998-04-22

Applicant: SONY CORP

Inventor： FUJITA SHIGERU ,  HIRANO TOMOYUKI

IPC: H01L21/768 ,  H01L21/205

Abstract: PROBLEM TO BE SOLVED: To provide a method of manufacturing a semiconductor device, which opens a contact hole in insulating films, without leaving such the reduce of a conductive material as to cause a short-circuit on the outside of the contact hole or can form an electrode embedded in the contact hole. SOLUTION: Insulating films 20a and 20b are formed on a substrate 10, and a contact hole CH2 is opened in the films 20a and 20b. Then, the hole CH2 is filled with a silicon-containing material and moreover, a silicon- containing layer 35 is formed on the whole surface, so that the a region of 200 to 400 nm in an ultraviolet reflection spectrum does not have the maximal value of a reflectivity to use the layer 35 as a layer for contact plug and the part of the layer 35 which is located on the outside of the hole CH2 and the part of the layer 35 which is embedded in the hole CH2 are removed to the film 20b to form a contact plug 35a.