Abstract:
An ion-conductive polymer which is represented by the following chemical formula and has at least one of syndiotactic and isotactic stereoregular structures. (I) (In the formula, n is an integer of 2 or larger; R is a C1-20 organic residue optionally containing one or more heteroatoms selected among nitrogen, oxygen, phosphorus, sulfur, and other atoms; X is an anionic part; and Y is an alkali metal, alkaline earth metal, transition metal, rare earth metal, ammonium, or hydrogen.)
Abstract:
PROBLEM TO BE SOLVED: To provide a mixture which enables cationic transfer without humidification, even at a temperature equal to or below the boiling point of water, a cationic conductor and an electrochemical device such as a fuel cell using these. SOLUTION: The fuel cell is equipped with a fuel electrode 12 and an oxygen electrode 13 which are placed facing each other and separated by an electrolyte membrane 11. The electrolyte membrane 11 contains a first compound comprising an imidazole derivative containing N having an unshared electron pair and at least one second compound chosen from the group consisting of compounds with structures of formula (1). COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an electrode, its manufacturing method, and a battery having the electrode, simplifying a production process and reducing a production cost. SOLUTION: A negative terminal 10T is formed by cutting a part of a copper foil constituting a negative current collector layer 11 and bending this part. A fitting process of the negative terminal 10T requiring high manufacturing technique is made unnecessary, and only the relatively simple manufacturing technique such as cutting or bending of the copper foil is required to from the negative terminal 10T. Since a negative electrode 10 having said negative terminal 10T is manufactured, the manufacturing of a secondary battery 100 is simplified, and the manufacturing cost is reduced. COPYRIGHT: (C)2003,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a secondary battery capable of inhibiting the increase of the resistance under repeated cycles of charge and discharge.SOLUTION: The secondary battery comprises a positive electrode and a negative electrode, and an electrolytic solution. The negative electrode contains a titanium-containing lithium complex oxide as a negative electrode active material, and the electrolytic solution contains cyclic disulfonic anhydride.
Abstract:
PROBLEM TO BE SOLVED: To provide a gel electrolyte capable of suppressing deterioration in capacity while suppressing liquid leakage, a lithium ion secondary battery, and a manufacturing method of the gel electrolyte. SOLUTION: The gel electrolyte contains an electrolyte salt, a solvent, a polymer compound having a structure in which polyvinyl acetal and its derivative or the like are polymerized, and a compound or the like containing a group III element and a group IV element of the periodic table. The lithium ion secondary battery using the gel electrolyte has a composition constituted of polyvinyl acetal comprising 65 mol% or more by a vinyl formal unit and 20 mol% or less by a vinyl alcohol unit. The gel electrolyte is manufactured by dissolving polyvinyl acetal, a support electrolyte, and the compound or the like as a cross-linking promoter containing the group III element and the group IV element of the periodic table into an electrolytic solution solvent, and by forming a cross-linked polymer having the structure in which polyvinyl acetal and its derivative or the like are polymerized from polyvinyl acetal in the solution using the support electrolyte and the cross-linking promoter as the catalyst. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an electrode having improved flexibility characteristics and a battery using the same. SOLUTION: A positive electrode 10 is so composed that a positive electrode active material 12 arranged over one face of a positive electrode collector layer 11 is split by a plurality of concave sections 13 into a plurality of active material layer units 12U positioned with a fixed interval. As the positive electrode 10 can be incurved to a great extent at the parts corresponding to the concave sections 13 which act as fulcrums, the flexibility characteristics of the battery mounting this positive electrode 10 is improved.
Abstract:
PROBLEM TO BE SOLVED: To attain miniaturization, high energy density and cost reduction and to suppress short-circuiting. SOLUTION: This battery is provided with a battery element 2 formed by laminating a negative electrode material 4 and a positive electrode material 5 through a sheet-like electrolyte member 6 made of a polymeric organic material, and a sheathing material 3 for sealing the battery element 2, leading outside one end part of a terminal part provided at a current collector of the negative electrode material 4 and positive electrode material 5. The battery element 2 is formed dividing a plurality of strip element parts provided in line forming cutout parts in the longitudinal direction of the whole application region of a negative electrode active material layer 7 and a positive electrode active material layer 11. The negative electrode material 4 and positive electrode material 5 are jointed to both faces of the electrolyte member 6 with the respective cutout parts positioned correspondingly, and bent through the cutout parts and sealed with the casing material 3.
Abstract:
PROBLEM TO BE SOLVED: To provide an ion conductive polymer that has a high ion conductivity and excellent cation and proton transport number. SOLUTION: The polymer has at least one or more kinds of a spatially ordered structure out of syndiotactic or isotactic structure as expressed in the formula. In the formula, n is an integral number of 2 or more, R is an organic residue having C of one or more and 20 or less or an organic residue having C of one or more and 20 or less and containing a hetero atom such as N, P, S or the like, and X is an anion part, and Y is an alkaline metal, alkaline earth metal, transition metal, rare earth group, ammonium or hydrogen.
Abstract:
PROBLEM TO BE SOLVED: To provide a positive electrode active material, along with a positive electrode and a nonaqueous electrolyte battery, capable of suppressing gas generation inside the battery, to provide a method of manufacturing the positive electrode active material and a method of manufacturing the positive electrode, and to provide a method of manufacturing the nonaqueous electrolyte battery. SOLUTION: The positive electrode active material layer 21B includes: the positive electrode active material; a conductive agent such as carbon material; and a binder such as polyvinylidene fluoride or polytetrafluoro ethylene. In this positive electrode active material, the valence of nickel existing on the surface layer of lithium complex oxide having nickel as the main component is divalent and the valence of the nickel existing in a more inside region than this surface layer is trivalent. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To enhance cycle characteristics and suppress decrease in safety of the battery in a nonaqueous electrolyte secondary battery using lithium composite oxide containing a large amount of nickel components. SOLUTION: The nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, a nonaqueous electrolyte, and a separator. The positive electrode is a lithium composite oxide containing more nickel component than a cobalt component. The separator includes a substrate layer and a polymer resin layer formed on at least one primary surface of the substrate layer. The polymer resin layer contains at least one of polyvinylidene fluoride, polyvinyl formal, polyacrylic ester, and methyl methacrylate. COPYRIGHT: (C)2010,JPO&INPIT