Samsung Electronics Co., Ltd.

Shiratsuchi Tomoyuki

Takanobu Yamada

Ryo Omoda

Koji Yoshida

Yuichi Aihara

Satoshi Fujiki

Taku Watanabe

An all solid battery including: a first electrode include a first current collector, and a first active material layer bonded to the first current collector; a first solid electrolyte layer bonded to a surface of the first active material layer opposite the first current collector; a second solid electrolyte layer bonded to a surface of the first solid electrolyte layer opposite the first active material layer; a second electrode including a second current collector, and a second active material layer bonded to the second current collector and a surface of the second solid electrolyte layer opposite the first solid electrolyte layer, wherein the first solid electrolyte layer extends farther than the second current collector in a direction away from a first surface of the all solid battery.

All solid battery

An all-solid secondary battery, comprising: a cell comprising a positive electrode active material layer, a negative electrode active material comprising at least one of lithium metal and a lithium-containing alloy, and a solid electrolyte layer disposed between the positive electrode active material layer and the negative electrode active material layer, wherein a ratio of volume density to true density of the positive electrode active material layer is about 0.6 or greater, wherein a ratio of volume density to true density of the solid electrolyte layer is about 0.6 or greater, and wherein an average pressure applied to opposite sides of the solid electrolyte layer in a fully discharged state is greater than 0 megapascals and 7.5 megapascals or less.

All-solid secondary battery

An all-solid secondary battery, including: a first current collector; a pair of first active material layers disposed on opposite sides of the first current collector; a pair of solid electrolyte layers disposed on surfaces of the pair of first active material layers; a pair of second active material layers disposed on surfaces of the pair of solid electrolyte layers; and a pair of second current collectors disposed on surfaces of the pair of second active material layers, wherein a surface of one of the pair of second current collectors opposite to a surface of one of the pair of second active material layers does not comprise protrusions having a height of greater than about 8 micrometers.

Growing community of inventors

Kanagawa, Japan

Shiratsuchi Tomoyuki