Fujitsu Corporation

Kenji Homma

Tamotsu Yamamoto

Satoru Watanabe

Tsutomu Tanaka

Tomochika Kurita

Jiyunichi Iwata

Jyunichi Iwata

Naoki Fushimi

Ryouji Itou

A positive electrode material has diffraction peaks at 2θ=13.1°±0.2°, 14.0°±0.2°, and 18.4°±0.2° in X-ray diffraction (2θ=5° to 90°) using synchrotron radiation having a wavelength of 1 Å, has a monoclinic crystal structure belonging to a space group P2/c, and is represented by a composition formula LiCoPO(−0.2≤x≤0.2).

Method of manufacturing positive electrode material

Provided is a solid electrolyte including electrolyte particles, wherein each of the electrolyte particles includes at least one of an O&#x2014;S&#x2014;O structure and an O&#x2014;S&#x2014;OH structure.

Solid electrolyte and all-solid battery

A solid electrolyte includes a particle having a first portion that includes, as constituent elements, lanthanum (La), lithium, titanium and oxygen, and a second portion that covers a surface of the first portion and includes, as constituent elements, lanthanum, lithium, titanium and oxygen and in which sulfur is coupled to an oxygen deficient portion and at least a surface is oxidized.

Solid electrolyte and fabrication method therefor, and all-solid-state secondary battery and fabrication method therefor

A composite solid electrolyte, which includes a solid electrolyte containing LaF, and solid electrolyte particles, which are either LiLaTiO(0&#x2264;x&#x2264;&#x2159;) or LiLaZrOconnected via the solid electrolyte.

Composite solid electrolyte and all solid battery

An ionic conductor is provided, wherein a composition formula thereof is LiAl(PO)(PO)(GeO), wherein x is a range of 0&#x3c;x&#x2266;2.0.

Ionic conductor and secondary battery

The lithium-ion conductor contains a crystal structure whose composition formula is represented by LiPBS(0&#x3c;x&#x2266;1). The crystal structure contains a LiStetrahedron and a BStetrahedron, a triangle window of the LiStetrahedron through which lithium ions pass becomes large caused by the BStetrahedron, and an ionic conductive path is expanded. Furthermore, lithium ions being a conductive carrier are added corresponding to B quantity x. Consequently, a lithium-ion conductor that exhibits excellent ion conductive property is realized. By using the lithium-ion conductor for a solid electrolyte, an all-solid lithium-ion secondary battery with high characteristics is realized.

Lithium-ion conductor and all-solid lithium-ion secondary battery

A lithium ionic conductor (solid electrolyte) contains lithium (Li), phosphorus (P), boron (B) and sulfur (S) as constituent elements and has a crystal structure that boron (B) is substituted for part of phosphorus (P) in the &#x3b2; structure of LiPS.

Growing community of inventors

Atsugi, Japan

Kenji Homma