Daiichi Kigenso Kagaku Kogyo Co., Ltd.

Toyota Jidosha Kabushiki Kaisha

Tazmo Co., Ltd.

Taku Nishikawa

Sadahiro Yagishita

Ryuta Sugiura

Daisuke Horikawa

Taichi Kunisada

Kazushi Kawakami

Fumitaka Iwakura

Koichi Wani

Tatsuya Kanda

Emi Hashimoto

A non-aqueous electrolyte secondary battery disclosed herein includes a positive electrode containing a positive electrode active material, a negative electrode, and a non-aqueous electrolyte, and the positive electrode active material includes a positive electrode active material particle containing a lithium transition metal compound, and a coating portion coating at least a part of a surface of the positive electrode active material particle. The coating portion contains a lithium ionic conductor containing lithium, a phosphoric acid group, and at least one element of lanthanum (La) and cerium (Ce).

Non-aqueous electrolyte secondary battery and positive electrode active material

A non aqueous electrolyte secondary battery includes a positive electrode containing a positive electrode active material, a negative electrode, and a non aqueous electrolyte, and the positive electrode active material includes a positive electrode active material particle containing a lithium transition metal compound, and a coating portion coating at least a part of a surface of the positive electrode active material particle. The coating portion contains a lithium ionic conductor containing lithium, a phosphoric acid group, and yttrium. The lithium ionic conductor includes a region A in which a ratio of yttrium is relatively rich and a region B in which the ratio of yttrium is relatively poor.

Provided are a zirconia sol having a transmittance of 45% or more at a wavelength of 400 nm, having a transmittance of 75% or more at a wavelength of 550 nm, and containing zirconia particles in an amount of 20 wt % or more, and a method for manufacturing the zirconia sol.

Zirconia sol and method for manufacturing same

The present invention provides a zirconium oxide-titanium oxide composite sol comprising single nano-level, monodisperse, and amorphous zirconium oxide-titanium oxide composite nanoparticles. Specifically, the present invention provides a zirconium oxide-titanium oxide composite sol comprising zirconium oxide-titanium oxide composite nanoparticles dispersed in a dispersion medium;

Zirconium oxide-titanium oxide composite sol and production method thereof

Provided is a phosphor for a dispersion-type EL that may be manufactured in a simple process and may provide stable, high brightness and light emission efficiency. The phosphor for a dispersion-type EL according to the present invention includes a mixture of an electron-accepting phosphor particle (A) and an electron-donating phosphor particle (B). The electron-accepting phosphor particle (A) includes a base particle and an acceptor element added thereto, and the electron-donating phosphor particle (B) includes a base particle and a donor element added thereto. For example, the base particle is a ZnS particle, the acceptor element is Cu, and the donor element is Cl or Al.

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Osaka, Japan

Taku Nishikawa