Sharp Kabushiki Kaisha Corporation

Sharp Corporation

Dai-ichi Kogyo Seiyaku Co., Ltd.

Tanaka Chemical Corporation

Denso Corporation

Osaka Gas Company Limited

Takehito Mitate

Kazuo Yamada

Naoto Nishimura

Motoaki Nishijima

Naoto Torata

Tetsuya Yoneda

Kazuaki Minato

Yoshihiro Tsukuda

Tsutomu Sada

Kazunari Takeda

Yumiko Takashima

Hideaki Tanaka

Akimasa Umemoto

Toyoshi Iida

Masaharu Yoshikawa

Tetsushi Makino

Shigeyuki Hamano

Hiroshi Okamoto

Hiroyuki Kitayama

Tomohiko Inada

Tsutomu Takatera

Naoyoshi Kameda

Naoki Ueda

Ryohsuke Yamanaka

Liyuan Han

Hiroshi Ueshima

Naoki Koide

Shigemi Asai

Yoshiteru Nakagawa

Yasuo Chiba

Hiroshi Matsumura

Hiroaki Matsuyoshi

Kouichi Ui

Kuzuo Yamada

Hisako Imai

Hideo Suzue

Hiromi Fujiwara

Masamitsu Katsuura

Koichi Morita

Tsutomu C/O Pionics Co Ltd Sada

Yumiko C/O Pionics Co Ltd Yokota

Kazunari C/O Pionics Co Ltd Takeda

Each of a plurality of photovoltaic power generators includes a solar cell, a storage battery, a communication interface for communication, and a battery control unit for controlling storage of electric power and output of electric power to an electric power system. The battery control unit of the first photovoltaic power generator included in the plurality of photovoltaic power generators causes the first photovoltaic power generator to prioritize output of the electric power to the electric power system over storage of the electric power during the first time period, and causes the second photovoltaic power generator included in the plurality of photovoltaic power generators to prioritize output of the electric power to the electric power system over storage of the electric power during the second time period delayed by a prescribed time period from the first time period, through the communication interface.

Power operation system, power operation method and photovoltaic power generator

A lithium secondary battery which comprises:

Lithium polymer secondary battery

A polymer battery which comprises a negative electrode comprising a carbon material as an active material, an electrolyte layer and a positive electrode comprising a chalcogenide containing lithium as an active material, characterized in that the electrolyte layer comprises an ion-conducting compound and a polymer fiber, and the carbon material comprises the graphite particles having amorphous carbon adhered on the surface thereof. The polymer battery is capable of preventing the decomposition of the ion-conductive material by graphite particles.

Lithium polymer battery with a crosslinked electrolyte

A lithium polymer secondary cell having a negative electrode, a positive electrode and, arranged between the electrodes, a polymer electrolyte layer, characterized in that the cell has been subjected to a heat treatment at a temperature of 40 to 60&#xb0; C. after the assembly thereof. The polymer cell is freed of or is reduced in the adverse effect of a residual monomer and initiator on the performance of the cell. The polymer electrolyte is formed by cross-linking polymerization of a precursor monomer for an ion conducting polymer in a non-aqueous electrolyte, and the residual monomer and initiator contained therein is consumed by the heat treatment.

Lithium polymer secondary battery and method for manufacturing the same

In a lithium secondary cell having a negative electrode, a positive electrode and, arranged between the electrodes, a polymer electrolyte layer, the internal resistance of the cell and the interfacial resistance between the electrode and the polymer electrolyte can be reduced by incorporating into the electrode, in advance, a polymer electrolyte precursor solution in a manner such that the electrode has a higher content of the precursor monomer and/or an oligomer thereof than that in the polymer electrolyte layer formed on the electrode.

Lithium secondary cell

A lithium secondary battery which comprises a negative electrode, a positive electrode, and disposed therebetween a polymer electrolyte comprising an ionically conductive polymer. The polymer electrolyte has a two-layer structure composed of a positive-electrode-side layer and a negative-electrode-side layer. The polymer electrolyte on the positive-electrode side contains a nonaqueous electrolytic solution containing a lithium salt in a higher concentration than that in the polymer electrolyte on the negative-electrode side. The battery is improved in charge/discharge cycling characteristics and high-load discharge characteristics.

Lithium secondary battery

A photovoltaic cell comprises: an anode electrode including a conductive support and a porous semiconductor layer; a photosensitive dye; a charge transport layer; and a counter electrode support, wherein the anode electrode has the property of causing cathode luminescence having a luminous peak wavelength in a visible region and shows a haze rate H of 60% or more at a wavelength in the visible region.

Photovoltaic cell including porous semiconductor layer, method of manufacturing the same and solar cell

A lithium polymer secondary battery which comprises a negative electrode, a positive electrode, and polymer electrolyte layers united respectively with the two electrodes and differing in viscoelastic behavior. In this battery, conformation to the expansion and shrinkage accompanying charge/discharge is easy and the interfacial resistance between each electrode and the polymer electrolyte is kept low.

A thinner secondary battery can be provided by a thin secondary battery characterized by comprising a battery element obtained by stacking positive electrode layers, electrolyte layers and negative electrode layers and laminates sealing front and back surfaces of the battery element, wherein the laminates each are made of a stacked body constructed of at least an adhesive layer and a metal layer in the order from the battery element side and the metal layer in the front surface side of the battery element and the metal layer in the back surface side thereof are different from each other in strength or thickness, or both of them.

Thin secondary battery

A secondary battery comprising a battery main body composed of at least one battery element and an external packaging film, the battery element including an electrolyte as well as a positive electrode layer and a negative electrode layer holding the electrolyte therebetween, the external packaging film closely contacting and sealing the battery element, wherein the external packaging film sealing the battery element has, at a surface thereof, a difference in level according to a contour of the battery element.

Secondary battery and electronic instrument using it

A lithium secondary battery includes a positive electrode containing a first solid electrolyte; a negative electrode containing a second solid electrolyte; and a layer of a third solid electrolyte between the positive and negative electrodes.

A polymeric solid electrolyte is composed of a polymer that contains an electrolyte salt and an organic solvent. The organic solvent is composed of a fluorinated organic solvent. The polymer solid electrolyte can retain a sufficiently high ion conductivity and provides excellent safety by exhibiting flame retardancy when heated.

Polymeric solid electrolyte and electrochemical element using the same

A process for producing a positive electrode active material for a nonaqueous secondary battery comprising the steps of: dissolving, in an alcohol as a medium, a starting material which contains metals necessary for giving a compound represented by the formula LiNi M O , wherein 0&lE;X<0.5 and M is at least one metal selected from transition metals and 3B-, 4B- and 5B-group elements, as a positive electrode active material, and which is soluble in the alcohol; adding a sufficient amount of oxalic acid to the resulting solution to produce a precipitate slightly soluble in the alcohol: separating the slightly soluble precipitate from the solution: and calcining the precipitate to obtain the positive electrode active material.

Process for producing a positive electrode active material for a nonaqueous secondary battery and a nonaqueous secondary battery using the active material

A process for producing a positive electrode active material for a nonaqueous secondary battery comprising the steps of: dissolving compounds capable of providing lithium ions, nickel ions and optionally ions of at least one element selected from the group consisting of transition metals,-3B-group elements, 4B-group elements and 5B-group elements in a buffer solution containing at least lithium ions, thereby to prepare a starting aqueous solution; adding an oxalic acid to the starting aqueous solution to form a precipitate of oxalates of said ions and separating the precipitate; calcining the resulting precipitate to produce LiNI M O , wherein 0&lE;X<0.5 and M is at least one element selected from the group consisting of the transition metals, 3B-group elements, 4B-group elements and 5B-group elements; and re-using a residual liquid after the precipitate is separated for preparing the starting aqueous solution.

Process for preparing a positive electrode active material for a nonaqueous secondary battery by forming an oxalate precipitate

A solid polymer electrolyte having a high ionic conductivity and a high mechanical strength, and a preparation method therefor. The solid polymer electrolyte comprises a metal salt and a polymer blend of a fluoropolymer and a polyether comprising either or both of an ethylene oxide unit and a propylene oxide unit as a monomeric unit.

Solid polymer electrolyte and preparation method therefor

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Yamatotakada, Japan

Takehito Mitate