Jfe Steel Corporation

National Institute of Advanced Industrial Science and Technology

Lintec Corporation

Tokyo University of Agriculture and Technology

Yoichi Tominaga

Takeshi Yokota

Koji Nakano

Osamu Furukimi

Hidetoshi Matsumoto

Kei Sakata

Kazuhiro Seto

Akio Tosaka

Satoshi Ueoka

Takashi Morioka

Nobuo Nishiura

Hajime Matsumoto

Keigo Kubota

Nobutaka Kurosawa

Takahiro Yuki

Sinjiro Kaneko

Noriyuki Katayama

A solid electrolyte contains: a copolymer having a constituent unit represented by a formula (1) below and a constituent unit represented by a formula (2) below; and a metal salt.  In the formula (1), m is 2 or 3, and Reach independently represent a hydrogen atom or a methyl group.  In the formula (2), n is 2 or 3, and Reach independently represent a hydrogen atom or a methyl group.

Solid electrolyte and battery

The object of the present invention is to provide the gelatinous, molten salt having a high ion-conductivity and an excellent heat resistance. The object of the present invention can be solved by the inorganic nanofibers having a functional group which inter-molecularly interacts with the molten salt on the surface thereof, and the molten salt composition comprising molten salt; or the method for increasing a viscosity of liquid molten salt characterized in that the inorganic nanofibers having a functional group which inter-molecularly interacts with the molten salt in the surface thereof is added to the liquid molten salt.

Molten salt composition, electrolyte, and electric storage device, and method for increasing a viscosity of liquid molten salt

A method for manufacturing a high strength hot rolled steel sheet includes heating a slab to a temperature in the range of 1150 to 1300&#xb0; C.; hot rolling the slab with a finishing rolling temperature being in the range of 800 to 1000&#xb0; C.; cooling the steel sheet at a mean cooling rate of 30&#xb0; C./s or higher to a cooling termination temperature in the range of 525 to 625&#xb0; C.; suspending cooling for a time period in the range of 3 to 10 seconds; cooling the steel sheet in such a manner that cooling of the steel sheet is nucleate boiling; and coiling the steel sheet at a temperature in the range of 400 to 550&#xb0; C.

Method for manufacturing high strength hot rolled steel sheet

A high tensile strength hot-rolled steel sheet having superior strain aging hardenability, which has high formability and stable quality characteristics, and in which satisfactory strength is obtained when the steel sheet is formed into automotive components, thus enabling the reduction in weight of automobile bodies is provided. Specifically, a method for producing a high tensile strength hot-rolled steel sheet having superior strain aging hardenability with a BH of 80 MPa or more, a &#x394;TS of 40 MPa or more, and a tensile strength of 440 MPa or more includes the steps of heating a steel slab to 1,000&#xb0; C. or more, the steel slab containing, in percent by mass 0.15% or less of C, 2.0% or less of Si, 3.0% or less of Mn, 0.08% or less of P, 0.02% or less of S, 0.02% or less of Al, 0.0050% to 0.0250% of N, and optionally 0.1% or less in total of at least one of more than 0.02% to 0.1% of Nb and more than 0.02% to 0.1% of V, the ratio N (mass %)/Al (mass %) being 0.3 or more, rough-rolling the steel slab to form a sheet bar; finish-rolling the sheet bar at a finishing temperature of 800&#xb0; C. or more; cooling at a cooling rate of 20&#xb0; C. to 40&#xb0; C./s or more within 0.5 second after the finish-rolling; and coiling at a temperature of 650&#xb0; C. to 450&#xb0; C. or less.

High tensile hot-rolled steel sheet having excellent strain aging hardening properties and method for producing the same

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Tokyo, Japan

Yoichi Tominaga