Murata Manufacturing Co., Ltd.

Yosuke Koike

Yoshihide Nagata

Takashige Fujikawa

Yasuhiro Ikeda

Yoshinori Gamoh

Qin Si

Kazuaki Takada

A battery includes a positive electrode, a negative electrode, and an electrolyte, and the positive electrode includes a substituted barium titanate.

Positive electrode, battery and method for manufacturing battery, battery pack, electronic device, electric vehicle, electric storage device, and electric power system

A secondary battery includes a positive electrode, a negative electrode including a first negative electrode active material, a second negative electrode active material, and a normal temperature molten salt composition, and an electrolytic solution. The first negative electrode active material includes a first material including carbon, and the second negative electrode active material includes a second material including silicon.

Negative electrode for secondary battery, secondary battery, battery pack, electric vehicle, electric power storage system, electric tool, and electronic device

A secondary battery includes a positive electrode; a negative electrode including a negative electrode current collector and a negative electrode active material layer which is provided on the negative electrode current collector and contains a negative electrode active material, and an electrolytic solution. The negative electrode active material includes a carbon-containing material and a silicon-containing material, and a spreading resistance distribution in the negative electrode active material layer is 1.03 or more and 10 or less as measured using a scanning spreading resistance microscope.

Secondary battery, battery pack, electrically driven vehicle, electric power storage system, electric tool, and electronic device

A secondary battery includes a cathode, an anode, and an electrolytic solution. The anode includes a first anode active material, a second anode active material, and an anode binder. The first anode active material includes a first central portion and a first coating portion. The first central portion includes a material that includes silicon as a constituent element, and the first coating portion is provided on a surface of the first central portion and includes one or both of a polyacrylate salt and a carboxymethylcellulose salt. The second anode active material includes a material that includes carbon as a constituent element. The anode binder includes one or more of polyvinylidene fluoride, polyimide, and aramid.

Secondary battery-use anode and method of manufacturing the same, secondary battery and method of manufacturing the same, battery pack, electric vehicle, electric power storage system, electric power tool, and electronic apparatus

A secondary battery includes a cathode; an anode (1) including a plurality of carbon particles and a plurality of non-carbon particles, (2) the carbon particles containing graphite, (3) the non-carbon particles containing a material including, as a constituent element, one or more of silicon (Si), tin (Sn), and germanium (Ge), and (4) a distribution of a first-order differential value of an integrated value Q of a relative particle amount with respect to a particle diameter D of the plurality of carbon particles having one or more discontinuities, where a horizontal axis and a vertical axis of the distribution indicate the particle diameter D (&#x3bc;m) and a first-order differential value dQ/dD, respectively; and an electrolyte.

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Kyoto, Japan

Yosuke Koike