Toyota Jidosha Kabushiki Kaisha

Shizuoka University

Other

Genesis Research Institute, Incorporated

Hamamatsu-photonics K.k.

Tatsuo Fujinami

Masaki Matsui

Masayoshi Takami

Takuya Mase

Mary Anne Mehta

Satoshi Suzuki

Takahiro Aoki

Mitsuo Hiramatsu

Isuke Hirano

Tatsuya Koga

Yasutaka Tanaka

Osamu Yamamoto

Yasutoshi Iriyama

Shizuyoshi Sakai

Ruoyuan Tao

Kunio Kosugi

Hiroshi Takemura

Michiaki Sagesaka

Takahito Ito

The present invention provides an electrolyte solution including: a solvent composed primarily of a BF-cyclic ether complex; and a supporting electrolyte. For example, preferred is an electrolyte solution in which the cyclic ether is one or two or more selected from optionally substituted tetrahydrofuran and optionally substituted tetrahydropyran.

Electrolyte solution and use therefor

The invention provides a solvent for an electrolyte solution, an electrolyte solution, and a gel-like electrolyte superior in oxidation resistance and flame resistance. A solvent for an electrolyte solution comprising at least one boric ester represented by the following formula (I), and a boric ester represented by the following formula (II): B(OR)(I); B(OCHCHCN)(II) wherein, in formula (I), each Rindependently represents CH(CF)nCFor CH(CF), n is an integer from 0 to 6, and at least a part of each of &#x2014;ORf and &#x2014;OCHCHCN included in the boric esters is transesterified.

Solvent for electrolyte solution, electrolyte solution, and gel-like electrolyte

A proton conductive material in which hollow inorganic fine particles that have through holes on a surface of the hollow inorganic fine particles, that are filled with an electrolyte resin. In addition, a membrane-electrode assembly which has an anode electrode provided on one surface side of a solid polymer electrolyte membrane and including an anode catalyst layer, and a cathode electrode provided on the other surface side of the solid polymer electrolyte membrane and including a cathode catalyst layer, wherein at least the anode catalyst layer from among the pair of catalyst layers includes the proton conductive material.

Proton conductive material

The principal object of the present invention is to provide a liquid electrolyte for electrochemical device having a wide potential window. The invention solves the problem by providing a liquid electrolyte for electrochemical device, which comprises an electrolyte dissolved in an MFcomplex being liquid at ordinary temperatures wherein 'M' represents B, Si, P, As or Sb and 'X' represents the valence of &#x201c;M&#x201d;.

Liquid electrolyte for electrochemical device

The principal object of the invention is to provide a lithium salt having excellent ion conductivity. The invention solves the problem by providing a lithium salt having a structure represented by the general formula (1): in which 'M' represents B, Si, Ge, P, As or Sb; 'X' represents the valence of &#x201c;M&#x201d;; &#x201c;R&#x201d; represents &#x2014;CH&#x2014; whereupon &#x201c;m&#x201d; is an integer of 1 to 4; &#x201c;R&#x201d; represents &#x2014;CHwhereupon &#x201c;k&#x201d; is an integer of 1 to 8; and &#x201c;n&#x201d; represents 0 to 12.

Lithium salt

An electrolyte membrane for a fuel cell includes: a proton conductive material in which hollow inorganic fine particles having through-holes on the surface of the hollow inorganic fine particles, are filled with an electrolyte resin; and a non-proton conductive polymer.

Electrolyte membrane for fuel cell having hollow inorganic fine particles

Disclosed are a lithium salt expressed by a formula, LiAlX(OY), where 'X' is an electrophilic substituent group and 'Y' is an oligoether group, an ionic conductor with the lithium salt dispersed in a structural member, and a liquid electrolyte with the lithium salt dissolved in a solvent. For example, the ionic conductor exhibits high ionic conductivity as well as high lithium ion transport number.

Lithium salt, ionic conductor and liquid electrolyte

A polymer electrolyte includes a substrate polymer, a branched polymer, and a lithium salt. The branched polymer has a main chain whose repeating unit is composed of an oligoethylene oxide chain and a connector molecule bonded to the oligoethylene oxide chain. The branched polymer can be a hyperbranched polymer. The polymer electrolyte can further include a composite oxide and/or a boroxine compound. The polymer electrolyte is good in terms of the ionic conductivity, and exhibits a high ionic conductivity especially at low temperatures. When the polymer electrolyte is used to make polymer lithium batteries, the resulting polymer lithium batteries shows improved charge-discharge cycle characteristics. In particular, it is possible to operate the polymer lithium batteries at low temperatures.

Polymer electrolyte and polymer lithium battery

Nonaqueous electrolyte secondary battery

An ionic conductor according to the present invention includes an electrolyte salt for ionic conduction, an ionically conducting molecule including a molecular chain which provides an ion conducting pathway and a boroxine ring bonded to the molecular chain and trapping anions resulting from the electrolyte salt, and a structural member for dispersion and immobilization of the ionically conducting molecule and the electrolyte salt therein. The structural material gives the ionic conductor mechanical strength, the ionically conducting molecule provides an ion conducting pathway, and the electrolyte salt gives it ionic conductivity.

Ionically conducting molecule, ionic conductor and process for producing the same

A substrate for an ion conductor includes a polymer or molecule capable of sustaining ion conduction, and a boroxine ring. The above mentioned polymer or molecule participates in and promotes ionic conduction. The boroxine ring is bonded to the above mentioned polymer or molecule, and captures anions resulting from dissolution of a salt. An ion conductor includes the substrate, and a salt combined with the substrate. In the ion conductor, the anions resulting from the salt are captured by the boroxine ring, but the cations resulting therefrom are transported. Thus, ion conduction where the majority of charge is carried by the cations occur. As a result, cation transport numbers far greater than usually observed can be achieved.

Substrate for ion conductor and ion conductor

The present invention provides an optical device according to this invention comprising a light transmitting optical member of a high molecular material containing mobile ions, and a pair of electrodes formed on surfaces of the optical member, a required potential difference being provided between the electrodes so as to cause ion conduction in the optical member and to reversibly vary a refractive index of the optical member. According to this invention, a refractive index is reversibly varied due to ion conduction, whereby the modulation of a transmitted beam or a reflected beam by the optical device can be reversibly controlled.

Optical device and apparatus using the optical device

A process for producing a polyether carbonate surface active material having hydrocarbon residue at terminal thereof in an efficient manner, wherein an active hydrogen-containing compound which has a hydrocarbon residue containing 4 or more of carbon atoms and a five-membered ring carbonic acid ester are telomerized in the presence of an ate-complex of a metal of Group II,III or IV of the periodic table having at least two alkoxy groups.

Growing community of inventors

Hamamatsu, Japan

Tatsuo Fujinami