Sony Corporation

Tomoyuki Shiratsuchi

Toru Odani

Ichiro Yamada

Tadahiko Kubota

Masayuki Ihara

Hiroshi Imoto

Atsumichi Kawashima

Atsushi Nishimoto

Takuma Sakamoto

Naoto Ueda

Batteries and battery packs are provided. In one embodiment, the battery includes a positive electrode, a negative electrode, and an electrolyte including a fluidic electrolyte and a non-fluidic electrolyte. The fluidic electrolyte is configured to be imaged as a void image in a secondary electron image and a reflection electron image obtained by energy dispersive X-ray spectroscopy, and the non-fluidic electrolyte is configured to be imaged in the secondary electron image and the reflection electron image with a non-fluidic electrolyte contrast different from a contrast associated with a member selected from the group consisting of a solid current collector, an active material, a conductive material, a binding material and a separator.

Battery and battery pack

A battery and a battery pack that includes the battery are provided. The battery includes a positive electrode including a positive electrode active material and a first current collector; a negative electrode including a negative electrode active material and a second current collector; a separator; a fluidic electrolyte; and a polymer layer including a polymeric material; wherein at least a portion of the polymer layer is provided between the separator and at least one of the positive electrode active material and the negative electrode active material; and wherein the fluidic electrolyte is provided in at least a void portion adjacent to at least one of the first current collector and the second current collector.

Disclosed is a battery including: a positive electrode; a negative electrode; and an electrolyte including a fluidic electrolyte in which an electrolytic solution containing a solvent and an electrolyte salt is present while maintaining fluidity, and a non-fluidic electrolyte in which an electrolytic solution containing a solvent and an electrolyte salt is supported by a polymeric material.

Battery, battery pack, electronic apparatus, electrically driven vehicle, electrical storage device, and electric power system

A secondary battery capable of suppressing resistance rise even after repeated charge and discharge is provided. The secondary battery includes a cathode, an anode, and an electrolytic solution. The anode contains titanium-containing lithium composite as an anode active material, and the electrolytic solution contains cyclic disulfonic acid anhydride.

Growing community of inventors

Fukushima, Japan

Tomoyuki Shiratsuchi