Sony Corporation

Murata Manufacturing Co., Ltd.

Akira Ichihashi

Akira Yamaguchi

Tadahiko Kubota

Yuzuru Fukushima

Masaki Kuratsuka

Hiroyuki Suzuki

Kimio Tajima

Hideto Watanabe

Masatomo Tanaka

Yasuhiro Nakamura

Kunihiko Hayashi

Masahiro Miyamoto

Hironori Sato

Gentaro Kano

Shuhei Sugita

Yoshifumi Shimizu

Karin Tsuda

Fumiko Kimura

Yuko Taki

The secondary battery includes a cathode, an anode, and an electrolytic solution. The anode includes an anode current collector and an anode active material layer that includes an anode active material, and is provided on the anode current collector, a surface of the anode active material being covered with one or more coatings containing one or both of polyvinylidene fluoride and a copolymer of polyvinylidene fluoride.

Secondary battery-use anode active material, secondary battery-use anode, secondary battery, battery pack, electric vehicle, electric power storage system, electric power tool, and electronic apparatus

To provide a non-aqueous electrolyte solution capable of improving cycle characteristics of a secondary battery, and a non-aqueous electrolyte secondary battery using the non-aqueous electrolyte solution. A non-aqueous electrolyte solution according to an embodiment of the present technology includes an electrolyte salt and a non-aqueous solvent. The electrolyte salt contains an imide salt as a main electrolyte salt and at least one lithium oxalate borate selected from the group consisting of lithium bis(oxalate) borate (LiBOB), lithium fluoro(oxalate) borate (LiFOB), and lithium difluoro(oxalate) borate (LiDFOB). The non-aqueous solvent contains at least one halogenated carbonic acid ester selected from the group consisting of a halogenated chain carbonic acid ester and a halogenated cyclic carbonic acid ester.

Non-aqueous electrolyte solution, non-aqueous electrolyte secondary battery using non-aqueous electrolyte solution, battery pack using non-aqueous electrolyte secondary battery, and electronic apparatus

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

A charging control apparatus is provided and includes a control unit configured to transmit instructions to a charging unit to execute charging of a battery. The control unit is configured to cause a scheme change from a first charging scheme to a second charging scheme based on charging scheme information received by the control unit.

Charging control apparatus, battery, electronic device, vehicle, charging control method, an electric storage system and charging control unit

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

An electrolytic solution capable of suppressing the battery swollenness and improving the battery characteristics such as the charge and discharge efficiency and a battery using it are provided. A cathode () and an anode () are layered with an electrolyte layer () in between. The electrolyte layer () is gelatinous, containing the electrolytic solution and a polymer compound. The electrolytic solution contains a compound having proton scavenging capacity such as hexamethylenetetramine and hexaethylenetetramine. Thereby, a free acid such as hydrofluoric acid is scavenged, and decomposition reaction of the electrolytic solution or the like is prevented.

Electrolytic solution and battery

Growing community of inventors

Fukushima, Japan

Akira Ichihashi