Toyota Jidosha Kabushiki Kaisha

Toyota Motor Engineering & Manufacturing North America, Inc.

Tokyo Institute of Technology

Keiichi Minami

Hongfei Jia

Ryoji Kanno

Charles Alexander Roberts

Torin C Peck

Paul Timothy Fanson

Kazuhito Kato

Masato Ono

Motoshi Isono

Satoshi Hori

Mitsuru Sakano

Shinya Shiotani

Katsuaki Odagi

A main object of the present disclosure is to provide a sulfide solid electrolyte with excellent water resistance. The present disclosure achieves the object by providing a sulfide solid electrolyte including a LGPS type crystal phase, and containing Li, Ge, P, and S, wherein: when an X-ray photoelectron spectroscopy measurement is conducted to a surface of the sulfide solid electrolyte, a proportion of Gewith respect to total amount of Ge is 20% or more.

Sulfide solid electrolyte, all solid state battery, and method for producing sulfide solid electrolyte

A sulfide-based solid electrolyte having a composition represented by LiGeSbPS, wherein 10≤a≤10.65, 0.35≤b≤0.65, and 0.075≤c≤0.15 are satisfied.

Sulfide-based solid electrolyte

An all-solid-state battery includes a case, a battery element, and a restraint component. The case accommodates the battery element. The battery element includes an electrode part and a resin part. The resin part covers at least a part of a side face of the electrode part. The restraint component applies a first pressure to the electrode part. The restraint component applies a second pressure to the resin part. The ratio of the second pressure to the first pressure is from 1.5 to 18.

All-solid-state battery, method of producing battery element, and method of producing all-solid-state battery

A main object of the present disclosure is to provide a sulfide solid electrolyte with high ion conductivity. In the present disclosure, the above object is achieved by providing a sulfide solid electrolyte comprising: a Li element, an M element (M is at least one kind of P, Ge, Si and Sn), and a S element, and the sulfide solid electrolyte has an argyrodite type crystal phase, inP-MAS-NMR, the sulfide solid electrolyte has peak A at 82.1 ppm&#xb1;0.5 ppm and peak B at 86.1 ppm&#xb1;0.5 ppm, and when an area ratio of the peak A is regarded as S, and an area ratio of the peak B is regarded as S, a proportion of the Sto the S, that is S/S, is 0.23 or less.

Sulfide solid electrolyte, precursor of sulfide solid electrolyte, all solid state battery and method for producing sulfide solid electrolyte

Provided are sulfide solid electrolyte particles which have sufficient ion conductivity and which are, when used in an all-solid-state battery, configured to suppress a resistance increase rate after charge-discharge cycles, and an all-solid-state battery comprising the sulfide solid electrolyte particles. The sulfide solid electrolyte particles may be sulfide solid electrolyte particles comprising a sulfide solid electrolyte that comprises Li, P, S and a halogen as constituent elements, wherein an oxygen/sulfur element ratio of a particle surface measured by XPS, is 0.79 or more and 1.25 or less, and an oxygen/sulfur element ratio at a depth of 30 nm (in terms of a SiOsputter rate) from the particle surface measured by XPS, is 0.58 or less.

Sulfide solid electrolyte particles and all-solid-state battery

Provided are sulfide solid electrolyte particles which have sufficient ion conductivity and which are configured to suppress hydrogen sulfide generation, and an all-solid-state battery comprising the sulfide solid electrolyte particles. Disclosed are sulfide solid electrolyte particles comprising Li, P, S and a halogen as constituent elements and having a Li/P molar ratio of more than 3, wherein an oxygen/sulfur element ratio of a particle surface measured by XPS is 0.29 or more and 0.81 and less, and an oxygen/sulfur element ratio at a depth of 30 nm (in terms of a SiOsputter rate) from the particle surface measured by XPS, is 0.29 or less.

Sulfide solid electrolyte particles, method for producing the same, and all-solid-state battery

Disclosed is a sulfide solid electrolyte of high robustness in its production step and of high lithium ion conductivity, the sulfide solid electrolyte including Li, P, S, Br, I, and N as its constituent elements.

Sulfide solid electrolyte and method of producing the same

A nitrogen oxide (NOx) reduction catalyst that includes a transition metal tungstate having the formula: MWOwherein M is selected from the group consisting of Mn, Fe, Co, Ni, and Cu. The catalyst may be utilized in various environments including oxygen rich and oxygen deficient environments.

Metal tungstates for use as nitrogen oxides reduction catalysts

The problem to be solved by the present invention is to provide a good NOx selective reduction catalyst. To solve the problem is a NOx selective reduction catalyst containing a composite oxide of Ti, Ce, W, and P or S.

Exhaust gas purification catalyst

[Summary] [Purpose] To provide an excellent exhaust gas purification catalyst with satisfactory NOselective reductive purification performance at lower temperature, and having a satisfactory NO formation rate. [Solution Means] A selective reduction catalyst for exhaust gas purification, represented by the formula: CoMn)TiO(where x in the molar ratio is a value greater than 0 and 0.2 or less).

Growing community of inventors

Shizuoka-ken, Japan

Keiichi Minami