公开(公告)号：JPH03287663A

公开(公告)日：1991-12-18

申请号：JP9252990

申请日：1990-04-05

Applicant: TORAY INDUSTRIES

Inventor： KIDAI MASAYUKI ,  TANIGUCHI TAKASHI

IPC: C08K3/00 ,  C08K5/41 ,  C08L83/04 ,  C08L83/06 ,  C09D5/00 ,  C09D5/24 ,  H01B1/06

Abstract: PURPOSE:To prepare a solid polyelectrolyte excellent in antistatic properties by compounding a polyorganosiloxane obtd. by hardening a hydrolysis product of a specific organosilicon compd. with an electrolyte. CONSTITUTION:A polyorganosiloxane obtd. by hardening a hydrolysis product of an organosilicon compd. of the formula is compounded with an electrolyte to give a solid polyelectrolyte. In the formula, R is a 3-40C org. group having at least one ether bond (C-O-C) and attached to Si through an Si-C bond; R is 1-8C alkyl, alkenyl, aryl, or aralkyl; X is a hydrolyzable group; and a is 0 or 1. An epoxidized organosilicon compd. such as gamma-glycidoxypropy ltrimethoxysilane or gamma-glycidoxypropylmethypound dimethoxyethoxysilane is esp. pref. as the organosilicon compd.

公开(公告)号：JP2003123792A

公开(公告)日：2003-04-25

申请号：JP2001311240

申请日：2001-10-09

Applicant: TORAY INDUSTRIES

Inventor： KONO SHUNJI ,  KIDAI MASAYUKI

IPC: H01B1/06 ,  H01B13/00 ,  H01M8/02 ,  H01M8/10

Abstract: PROBLEM TO BE SOLVED: To provide a new polymer electrolyte film and a manufacturing method for it capable of attaining a high output and to provide a high performance solid polymer fuel cell using the polymer electrolyte film. SOLUTION: In this polymer electrolyte membrane having a structure with a porous base material filled with a proton conductor, a proton conductive layer is arranged on at least one face of the porous base material.

公开(公告)号：JP2002093424A

公开(公告)日：2002-03-29

申请号：JP2001208929

申请日：2001-07-10

Applicant: TORAY INDUSTRIES

Inventor： MORIKAWA HIROBUMI ,  KIDAI MASAYUKI ,  KOJIMA SADAO

IPC: C25B11/02 ,  C25B1/10 ,  C25B11/03 ,  C25B13/08 ,  H01M4/86 ,  H01M4/88 ,  H01M8/00 ,  H01M8/02 ,  H01M8/10

Abstract: PROBLEM TO BE SOLVED: To provide a manufacturing method of a membrane-electrode joined body having performance higher than a conventional one, and suppressing degradation of strength of proton exchange membrane and decrease of ion exchange ability. SOLUTION: In a joining process of membrane-electrode joined body comprising at least a proton exchange membrane, an electrode catalyst layer and an electrode base material, the proton exchange membrane and/or an electrode catalyst layer previously containing a solvent are used, and the solvent is evaporated from the proton exchange membrane and/or the electrode catalyst layer by pressurizing and heating them.

公开(公告)号：JP2000353528A

公开(公告)日：2000-12-19

申请号：JP29351599

申请日：1999-10-15

Applicant: TORAY INDUSTRIES

Inventor： KIDAI MASAYUKI ,  MORIKAWA HIROBUMI ,  KOJIMA SADAO

IPC: B01J31/06 ,  C25B11/04 ,  C25B11/06 ,  H01M4/86 ,  H01M4/88 ,  H01M4/90 ,  H01M4/96 ,  H01M8/10

Abstract: PROBLEM TO BE SOLVED: To provide an electrode catalyst layer superior in gas diffusibility, electron conductivity, proton conductivity, and discharge of water. SOLUTION: This electrode catalyst layer features that a catalyst-polymer complex, containing catalyst carrying carbon particles and polymer, is a three dimensional network porous structure. In manufacturing method of this electrode catalyst layer, a catalyst-polymer solution composition is produced by wet coagulation method for obtaining the electrode catalyst layer having high porosity and superior in gas permeability and drainability. An electrode and a film- electrode complex (MEA) using this electrode catalyst layer are inexpensive and superior in a high output characteristic because they use the electrode catalyst layer having said characteristics and an inexpensive electrode base material superior in gas permeability and drainability.

公开(公告)号：JPH11162510A

公开(公告)日：1999-06-18

申请号：JP32600097

申请日：1997-11-27

Applicant: TORAY INDUSTRIES

Inventor： KIDAI MASAYUKI ,  OKA TETSUO

IPC: H01M10/05 ,  B82Y99/00 ,  C01B31/02 ,  H01M4/133 ,  H01M4/36 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/40 ,  H01M4/58

Abstract: PROBLEM TO BE SOLVED: To provide an excellent initial capacity, a cycle characteristic, a high output characteristic and a temperature characteristic by using lithium containing transition metal oxide for a positive electrode active material, amorphous carbon and crystalline carbon for a negative electrode, and ethylene carbonate for a nonaqueous electrolytic solution with a certain ratio. SOLUTION: A secondary battery is formed by using lithium containing transition metal oxide for a positive electrode active material, including amorphous carbon and crystalline carbon in a negative electrode active material, and setting a volume ratio of ethylene carbonate used as a solvent constituent in a nonaqueous electrolytic solution at 10-90%. For the solvent, chain dimethyl carbonate can preferably be used other than ethylene carbonate, taking affinity to the positive and negative electrode active materials into account. For the electrolyte, LiPF6 or LiB4 containing fluorine atoms is preferably used from the viewpoint of the stability to the positive and negative electrode active materials. The concentration of the electrolyte is preferably 0.4-2 M.

公开(公告)号：JPH1021960A

公开(公告)日：1998-01-23

申请号：JP17360596

申请日：1996-07-03

Applicant: TORAY INDUSTRIES

Inventor： KIDAI MASAYUKI ,  TSUKAMOTO JUN ,  TANIGUCHI TAKASHI

IPC: H01M10/05 ,  C01B31/02 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/40 ,  H01M4/02 ,  H01M4/58

Abstract: PROBLEM TO BE SOLVED: To provide a lithium ion secondary battery with improved safety in a destructive test of a battery by adding a specified compound as an electrolytic substance to a nonaqueous electrolytic solution and specifying the molar ratio of the specified substance to the electrolytic substance. SOLUTION: In a secondary battery comprising a positive electrode, a negative electrode made of a carbonaceous material, and a nonaqueous electrolytic solution, the nonaqueous electrolytic solution contains LiBF4 as an electrolytic substance, the molar ratio of LiBF4 to the electrolytic substance is not less than 0.01 and not more than 0.5. Consequently, a lithium ion secondary battery with improved safety to a destructive test of batteries can be obtained.

公开(公告)号：JPH0831404A

公开(公告)日：1996-02-02

申请号：JP16528394

申请日：1994-07-18

Applicant: TORAY INDUSTRIES

Inventor： KIDAI MASAYUKI ,  TSUKAMOTO JUN

IPC: H01M10/05 ,  C01B31/02 ,  H01M4/133 ,  H01M4/587 ,  H01M10/0568 ,  H01M4/02 ,  H01M4/58 ,  H01M10/40

Abstract: PURPOSE:To obtain the electrode, which is provided with he characteristic of carbon material and which has the excellent charging and discharging characteristic, and a secondary battery using this electrode by using the carbon material, on which surface fluorine atom exist, as the active material. CONSTITUTION:Carbon material, on which surface fluorine atom exist, is used as the active material. As the carbon material, carbon fiber is desirably used so that the fluorine atoms evenly and continuously exist on the surface thereof. As the carbon fiber, polyacrylonitrile baked material is desirable. For example, the carbon material processed by using the plasma, which is made of fluorine element included gas (for example, low level fluorinated hydrocarbon such as methane tetra-fluoride) is desirably used as the active material. This electrode is used as a negative electrode, and the lithium compound oxide is used as a positive electrode so as to form a secondary battery.

公开(公告)号：JPH0729598A

公开(公告)日：1995-01-31

申请号：JP9988794

申请日：1994-05-13

Applicant: TORAY INDUSTRIES

Inventor： KIDAI MASAYUKI ,  TSUKAMOTO JUN

IPC: H01M10/05 ,  C01B31/02 ,  C01B31/04 ,  H01M4/133 ,  H01M4/48 ,  H01M4/587 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/40 ,  H01M4/58

Abstract: PURPOSE:To prevent the drop in high output capacity ratio (ratio between high output capacity and low output capacity) by setting dielectric constant of a solvent used in a nonaqueous electrolyte in a specified range in a secondary battery with a carbon fiber negative electrode, a positive electrode, and the nonaqueous electrolyte. CONSTITUTION:A positive electrode is prepared by mixing artificial graphite serving as a condcutor and Teflon serving as a binder to LiCoO2 in a specified ratio, then press-molding the mixture on a nickel mesh serving as a current collector. A negative electrode is prepared by arranging polyacrylonitrile carbon fibers in one axial direction, then by placing them on a nickel mesh serving as a current collector. The negative electrode is placed on the positive electrode with a porous propylene film serving as a separator interposed between them to constitute a coin type secondary battery. A solution of propylene carbonate/ dimethoxyethane and the like containing lithium perchlorate is used as an electrolyte. The dielectric constant epsilon of the solvent used in the electrolyte is specified to 25

公开(公告)号：JPH05105780A

公开(公告)日：1993-04-27

申请号：JP26941991

申请日：1991-10-17

Applicant: TORAY INDUSTRIES

Inventor： KIDAI MASAYUKI ,  YAMADA SHINICHI ,  TANIGUCHI TAKASHI

IPC: C08K3/00 ,  C08L101/00 ,  C08L101/02 ,  C09D201/02 ,  G02F1/15 ,  G09F9/30 ,  H01B1/06

Abstract: PURPOSE:To obtain a solid polyelectrolyte, consisting essentially of a three- dimensionally cross-linked resin having organic sulfide bonds and an electrolyte and capable of providing coating films excellent in surface characteristics with hardly any humidity dependence of ionic conductivity. CONSTITUTION:The objective solid polyelectrolyte is obtained by carrying out a method for cross-linking reaction of a composition containing at least (A) a compound having organic sulfide bond or a compound (e.g. mercaptoethyl sulfide) capable of forming the organic sulfide bond by three-dimensional cross- linking, (B) a cross-linking agent, preferably a silane coupling agent (e.g. vinyltriethoxysilane) expressed by formula I or II [R to R are 1-10C organic group; X and Q are hydrolyzable group; (d), (c) and (e) are 0 or 1; (b), (d) and (f) are 0-2 ; Y is 2-40C organic group], more preferably its hydrolyzate and (C) an electrolyte in the presence of preferably a curing agent or other silane coupling agents, etc. Furthermore, a coating film and an electrochromic display element composed of the solid polyelectrolyte are obtained.

公开(公告)号：JPH04365018A

公开(公告)日：1992-12-17

申请号：JP14040391

申请日：1991-06-12

Applicant: TORAY INDUSTRIES

Inventor： KIDAI MASAYUKI ,  YAMADA SHINICHI ,  TANIGUCHI TAKASHI

IPC: G02F1/15

Abstract: PURPOSE:To provide an excellent picture drawing property without applying complex patterning processing by providing insulating fine grains. CONSTITUTION:Multiple layers containing at least an electro-chromic material layer 4 and a solid electrolyte layer 3 are provided on a substrate 1 having the first electrode layer 2, and insulating fine grains 5 are provided between the multiple layers and the second electrode layer 6 having an elastic film 7 faced to the multiple layers. The average grain size of the insulating fine grains 5 is set to 0.1-100mum, the fine grains can be deformed, and the deformation quantity D(%) when the fine grains are deformed under the load 20kg/cm is set to 10% or above, D(%)={(L0-L)/L0}X100, where L0 is the thickness of a material forming the fine grains at no pressure, and L is the thickness of the material of the fine grains under the pressure 20kg/cm . The area ratio of the fine grains is within the range 1X10 -15X10 against the area of the multiple layers, and the number of the fine grains is 2-50,000 per unit area.