Sony Corporation

Murata Manufacturing Co., Ltd.

Kimio Tajima

Tadahiko Kubota

Akira Yamaguchi

Kunihiko Hayashi

Yuzuru Fukushima

Masahiro Miyamoto

Masaki Kuratsuka

Hiroyuki Suzuki

Hironori Sato

Akira Ichihashi

Hideto Watanabe

Kohki Watanabe

A battery is provided including an anode, a cathode and an electrolyte; wherein the electrolyte includes one or both of fluoro ethylene carbonate and difluoro ethylene carbonate in an amount of 0.5% by mass or more and 10% by mass or less, wherein the anode includes an anode active material layer provided on an anode current collector, and wherein a thickness of the anode active material layer, after charging the battery, is 58 um or more and 75 um or less.

Battery

The present application provides a nonaqueous electrolyte secondary battery that includes, a cathode capable of being electrochemically doped/dedoped with lithium, an anode capable of being electrochemically doped/dedoped with lithium, and an electrolyte placed between the cathode and the anode, wherein the electrolyte contains at least one of fluoro ethylene carbonate represented by Chemical Formula (1) and difluoro ethylene carbonate represented by Chemical Formula (2) as a solvent and the ratio of a discharge capacity B during discharging at a 5C rate to a discharge capacity A during discharging at a 0.2C rate ((B/A)&#xd7;100) is 80% or more.

Nonaqueous electrolyte secondary battery

A nonaqueous electrolyte battery is provided. The nonaqueous electrolyte battery includes an anode; a cathode; a separator; an electrolytic solution including a solvent and an electrolyte salt; wherein the solvent includes a fluoro ethylene carbonate, wherein the nonaqueous electrolyte battery has a discharge capacity ratio of a discharge capacity B when discharging at a 5 C rate to a discharge capacity A when discharging at a 0.2 C rate ((B/A)&#xd7;100%), and wherein the discharge capacity ratio is 80% or more. An electrical apparatus including a nonaqueous electrolyte battery is also provided.

Nonaqueous electrolyte battery and electrical apparatus

A control apparatus includes, for example, an input unit to which a plurality of pieces of voltage information related to a voltage of an electric storage unit upon discharge are input, and a determination unit configured to use the voltage information in an early stage of the discharge and determine the presence or absence of a deterioration of the electric storage unit.

Control apparatus, control method, power supply system, and electric-powered vehicle

Growing community of inventors

Fukushima, Japan

Kimio Tajima