Toyota Jidosha Kabushiki Kaisha

Shin Ushiroda

Masato Hozumi

Keita Niitani

Hiroko Kuwata

Hiroyuki Yamaguchi

Hideyuki Yamamura

A sodium ion secondary battery includes a cyclic organic compound as an active material and a complex hydride as a solid electrolyte, wherein the cyclic organic compound has at least two carbonyl groups —C(═O)—, the at least two carbonyl groups are bonded via a single bond or at least one conjugated double bond, and the complex hydride includes a Na cation and a complex ion containing H.

Sodium ion secondary battery

To provide an anode material that can improve the efficiency of the initial charging and discharging, the anode material includes an amorphous glassy carbon material that is an anode active material, and a NaMH compound that is a solid electrolyte.

Anode material for sodium ion battery, and sodium ion battery

Provided is a sodium ion conductor whose sodium ion conductivity is improved more than the conventional. The sodium ion conductor is a molecular crystal constituted of NaCBH, NaCBH, and a sodium halide, the sodium halide having a mol fraction of more than 0 and at most 70 on the basis of the total mol ratio of NaCBH, NaCBH, and the sodium halide.

Sodium ion conductor and solid-state sodium-ion battery

Provided is a lithium-ion secondary battery that uses a non-carbonaceous negative electrode active material capable of exhibiting capacitance properties. The lithium-ion secondary battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte solution. The negative electrode includes a mica group mineral having at least one transition metal in its composition as a negative electrode active material.

Lithium-ion secondary battery

A silicate negative electrode material comprising a smectite wherein, when the smectite is measured with a powder x-ray diffractometer, a peak is found in a case where 2&#x3b8; is in a range from 7.45&#xb0; to 9.18&#xb0;.

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Susono, Japan

Shin Ushiroda