Toyota Jidosha Kabushiki Kaisha

Japan Science and Technology Agency

University Public Corporation Osaka

Other

Idemitsu Kosan Company, Limited

Osaka Prefecture University Public Corporation

Akitoshi Hayashi

Masahiro Tatsumisago

Shigenori Hama

Koji Kawamoto

Kenji Kimura

Atsushi Sakuda

Minoru Senga

Yukiyoshi Ueno

Takamasa Ohtomo

Yasushi Tsuchida

Masato Kamiya

Hiroshi Nagase

Yoshikatsu Seino

Kiyoharu Tadanaga

Takamasu Ohtomo

A solid electrolyte for an all-solid-state sodium battery, represented by formula: NaSb&#x3b1;S, wherein &#x3b1; is selected from elements that provide NaSb&#x3b1;Sexhibiting a higher ionic conductivity than NaSbS, and x is 0&#x3c;x&#x3c;1.

Solid electrolyte for all-solid sodium battery, method for producing same, and all-solid sodium battery

An amorphous oxide-based positive electrode active material that is a production material of a positive electrode for an all-solid secondary battery, wherein the amorphous oxide-based positive electrode active material (i) comprises an alkali metal selected from Li and Na; a second metal selected from Co, Ni, Mn, Fe, Cr, V, Cu, Ti, Zn, Zr, Nb, Mo, Ru and Sn; an ionic species selected from phosphate ion, sulfate ion, borate ion, silicate ion, aluminate ion, germanate ion, nitrate ion, carbonate ion and halide ion; and an oxygen atom (except for the oxygen atom constituting the ionic species); (ii) contains at least an amorphous phase; and (iii) is a production material of a positive electrode with a thickness of 20 &#x3bc;m or more.

Amorphous oxide-based positive electrode active material, method for producing same and use of same

A solid electrolyte for all-solid sodium battery expressed by NaSbSA, wherein A is selected from F, Cl, Br, I, NO, BH, BF, PF, ClO, BH, CFSO, (CFSO)N, (CFSO)N, (FSO)N, and [B(CO)]; and x is 0&#x3c;x&#x3c;3.

Solid electrolyte for all-solid sodium battery, and all-solid sodium battery

A positive electrode for an all-solid secondary battery, comprising a positive electrode active material expressed by AS.AX, wherein

Positive electrode for all-solid secondary battery, method for manufacturing same, and all-solid secondary battery

A forming solution for forming a layer containing a solid electrolyte for an all-solid-state alkali metal secondary battery comprising a component derived from AS and MS(A is selected from Li and Na; M is selected from P, Si, Ge, B, Al and Ga; and x and y are a number that gives a stoichiometric ratio in accordance with a species of M) as a starting material for manufacturing the solid electrolyte, a nonpolar organic solvent and a polar organic solvent having a polarity value higher than that of the nonpolar organic solvent by 0.3 or more.

Solution for forming layer that contains solid electrolyte for all-solid-state alkali metal secondary batteries, coated active material particles, electrode, all-solid-state alkali metal secondary battery and method for manufacturing same

An ion conductive glass ceramics having the formula NaS&#x2014;PS, wherein the NaS in the ion conductive glass ceramics is contained in an amount of from 70 to 75 mole %, and wherein the ion conductive glass ceramics has a state where crystal parts are dispersed in the glass ingredient of an amorphous state and where the crystal parts contain tetragonal NaPS.

All-solid-state secondary cell

An ion conducting glass-ceramics represented by the general formula (I): NaS-MS&#x2014;NS, wherein M and N are different and selected from P, Si, Ge, B, Al and Ga; x, y, a and b are integers indicating the stoichiometric ratio depending on the species of M and N; and the content of NaS is more than 60 mol % and less than 80 mol %.

Ion conducting glass-ceramics, method for manufacturing same and all-solid-state secondary battery including same

An all-solid-state secondary cell is provided comprising at least a positive electrode, a negative electrode and a solid electrolyte layer which is positioned between the positive electrode and the negative electrode. The positive electrode contains a positive electrode active material consisting of NaS(x=1 to 8) and the solid electrolyte layer contains an ion conductive glass ceramics represented by a formula (I): NaS-MS, wherein M is P, Si, Ge, B or Al; x and y each is an integer giving a stoichiometric ratio depending upon the type of M; and NaS is contained in an amount of more than 67 mole % and less than 80 mole %.

A sulfide solid electrolyte with excellent ion conductivity and a method for producing a crystallized glass contained in the sulfide solid electrolyte. A sulfide solid electrolyte comprising a crystallized glass represented by the following chemical formula yLiS&#x2022;(100-x-y)PS&#x2022;xPO, wherein 0&#x3c;x&#x3c;25 and 67&#x3c;y&#x3c;80.

Sulfide solid electrolyte

A solid electrolyte material for an all solid-state lithium secondary battery represented by LiS-MS-MO, wherein Mis selected from P, Si, Ge, B and Al; 'a' and 'b' respectively represent numbers that give a stoichiometric ratio in accordance with the kind of M; Mis selected from Fe, Zn and Bi; and &#x201c;x&#x201d; and &#x201c;y&#x201d; respectively represent numbers that give a stoichiometric ratio in accordance with the kind of M.

Solid electrolyte material and all solid-state lithium secondary battery

The main object of the present invention is to provide a sulfide solid electrolyte material with less hydrogen sulfide generation amount. The present invention solves the above-mentioned problem by providing a sulfide solid electrolyte material obtained by using a raw material composition containing LiS and sulfide of an element of the fourteenth family or the fifteenth family, characterized by not substantially containing cross-linking sulfur and LiS.

Sulfide solid electrolyte material

A lithium-ion-conducting sulfide-based crystallized glass including: lithium (Li), phosphorus (P), and sulfur (S) elements, wherein the glass has diffraction peaks at 2&#x3b8;=17.8&#xb1;0.3 deg, 18.2&#xb1;0.3 deg, 19.8&#xb1;0.3 deg, 21.8&#xb1;0.3 deg, 23.8&#xb1;0.3 deg, 25.9&#xb1;0.3 deg, 29.5&#xb1;0.3 deg and 30.0&#xb1;0.3 deg in X-ray diffraction (CuK&#x3b1;: &#x3bb;=1.5418 &#x212b;).

Lithium ion conducting sulfide based crystallized glass and method for production thereof

A battery unit includes a battery assembly. The battery assembly includes a glass ceramic and a positive-side active material constituting a first composite layer, a glass ceramic and a negative-side active material constituting a second composite layer, and a solid-state electrolyte layer located between the first composite layer and the second composite layer. The battery unit also includes a case in which the battery unit is stored, a load sensor provided on the case, and a clamp member clamping the case and the load sensor.

Battery unit

A solid state battery excellent in pressure formability is provided. A positive electrode composite material layer includes sulfide glass unheated and a positive electrode active material. The sulfide glass and the positive electrode active material are pressure-formed and in contact with each other. A negative electrode composite material layer includes sulfide glass unheated and a negative electrode active material. The sulfide glass and the negative electrode active material are pressure-formed and in contact with each other.

Growing community of inventors

Sakai, Japan

Akitoshi Hayashi