Samsung Sdi Co., Inc.

Samsung Electronics Co., Ltd.

Posco Jk Solid Solution Co., Ltd.

Minsuk Lee

Hyorang Kang

Dooyeon Lee

Junhwan Ku

Jaegu Yoon

Younggyoon Ryu

Hongjeong Kim

Hyungsik Lim

Taeheung Kim

Duckki Yoon

A negative electrode includes a negative electrode current collector and a first negative electrode active material layer on the negative electrode current collector, wherein the negative electrode current collector includes a first metal substrate including a first metal, and a coating layer positioned on the first metal substrate and containing a second metal, the second metal having a greater Mohs hardness than the first metal.

Negative electrode and solid-state secondary battery including the same

An all-solid secondary battery and a method of manufacturing the all-solid secondary battery. The all-solid secondary battery includes: an anode including an anode current collector and a first anode active material layer; a cathode including a cathode active material layer; and a solid electrolyte layer between the anode and the cathode, wherein the first anode active material layer includes an anode active material and an ionic compound, the ionic compound includes a binary compound, a ternary compound, or a combination thereof, and the ionic compound does not include a plurality of sulfur (S) atoms.

All-solid secondary battery and method of manufacturing all-solid secondary battery

An all-solid secondary battery includes a cathode layer; an anode layer; and a solid electrolyte layer disposed between the cathode layer and the anode layer. The cathode layer includes a cathode current collector and a cathode active material layer disposed on the cathode current collector, the anode layer includes an anode current collector and a first anode active material layer disposed on the anode current collector, the cathode active material layer includes a porous oxide-based composite solid electrolyte, and the solid electrolyte layer includes a sulfide-based solid electrolyte.

All-solid secondary battery

A sulfide solid electrolyte includes: an ionic conductor including a PSunit, a PSunit, and a PSunit; and a lithium compound containing a halogen element, wherein a molar ratio of the PSunit to the PSunit is about 1:1 to about 5:1, and a molar amount of the PSunit with respect to the total molar amount of the PSunit, the PSunit, and the PSunit is greater than 0 to about 60%.

Sulfide-based solid electrolyte, all-solid secondary battery including the same, and method of preparing the sulfide-based solid electrolyte

An all-solid secondary battery including: an anode layer including a first anode active material layer; a cathode layer including a cathode active material layer; a solid electrolyte layer between the anode layer and the cathode layer; and an anode current collector on the anode layer and opposite the solid electrolyte layer, wherein a maximum roughness depth Rof a surface of the first anode active material layer is about 3.5 micrometers or less.

Growing community of inventors

Suwon-si, South Korea

Minsuk Lee