Samsung Sdi Co., Inc.

Joon-Sup Kim

Kyou-Yoon Sheem

Sung-Soo Kim

Sang-Jin Kim

Sung-soo Kim

Sang-Min Lee

Wan-Uk Choi

Jea-Woan Lee

Yoshiaki Nitta

Jae-Yul Ryu

Yong-Mook Kang

Han-Su Kim

Min-Seok Sung

Sang-min Lee

Young-Gyoon Ryu

Sang-mock Lee

Jong-Ki Lee

Tae-Gon Kim

Seung-Hee Park

Young-Hee Lee

Young-Ugk Kim

Yong-Bum Lee

Chang-Keun Back

Jin-Hee Moon

Jae-gu Yoon

Goo-Jin Jeong

Chung-Kun Cho

Tae-gon Kim

Bong-Chull Kim

Kyeong-Min Jeong

In-Seop Byun

Bo-Hyun Kim

Jae-Hou Nah

Bok-Hwan Jung

Yu-Jin Han

Yang-Soo Kim

Hye-Jin Kwon

Young-Chang Lim

Hisaki Tarui

Hee-Joon Chun

Hye-won Kim

Seung-Sik Hwang

Ri-Zhu Yin

Seong-Mo Oh

Chang-Kuen Back

Tae-Wan Kim

In an aspect, a negative active material for a rechargeable lithium battery that includes a silicon-based active material including a core including carbon and SiOparticles (0.5&#x2266;x&#x2266;1.5); and a coating layer surrounding the core, and a negative electrode and a rechargeable lithium battery including the same are provided.

Negative active material for rechargeable lithium battery, and negative electrode and rechargeable lithium battery including same

A negative active material for a rechargeable lithium battery and a rechargeable lithium battery including the negative active material have a negative active material including either Si or Sn active metal grains and a metal matrix composed of at least two metal elements that surrounds the active metal grains but does not react therewith.

Negative active material including Si active metal grains and Cu&#x2014;Al metal matrix surrounding Si active metal grains and rechargeable lithium battery including negative active material

Disclosed is a rechargeable lithium battery that includes a positive electrode including a lithium nickel-based positive active material; a negative electrode including a negative active material; an electrolyte including a lithium salt and a non-aqueous organic solvent; and a separator including a polymer substrate and a hydroxide compound-containing coating layer disposed on the polymer substrate.

Rechargeable lithium battery

A lithium secondary battery includes a positive electrode, a negative electrode, and an electrolyte. The negative electrode includes a current collector, an active material layer on the current collector and including an amorphous silicon oxide represented by SiO(0.95&#x3c;x&#x3c;1.7), and an SEI layer on the active material layer and including about 70 area % or more of protrusion parts having a size of about 5 nm to 300 nm during charging of the battery.

Lithium secondary battery

A negative electrode for a lithium secondary battery of the present invention includes a negative active material including a plate-shaped carbon powder particle agglomerated in a primary structure in which the plate-shaped particle is oriented in a plane direction and laminated. Fine carbon powder particles are then agglomerated to form a secondary structure on the surface of the primary structure such that the resulting particles include fine pores formed on the surface.

Negative active material for lithium secondary battery and negative electrode and lithium secondary battery comprising same

A negative active material for a lithium rechargeable battery is provided. The negative active material includes an active metal core and a crack inhibiting layer disposed on a surface of the active metal core. The crack inhibiting layer includes a metal oxide.

Negative active material for a rechargeable lithium battery, a method of preparing the same, and a rechargeable lithium battery including the same

The present invention relates to an active material for a rechargeable lithium battery and a rechargeable lithium battery including the same. The active material includes an active material and a fiber-shaped or tube-shaped carbon conductive material attached to the surface of the active material. The active material includes a conductive shell including a fiber-shaped or tube-shaped carbon conductive material and increases discharge capacity due to improved conductivity and improves cycle-life efficiency by maintaining paths between active material particles during charge and discharge cycles.

Active material for rechargeable lithium battery and rechargeable lithium battery including same

Disclosed is a lithium secondary battery including a positive electrode including a positive active material; a negative electrode including a negative active material; a separator interposed between the positive and negative electrodes; and an electrolyte, where an alkaline metal powder layer is formed by dispersion coating on a surface of at least one of the positive and negative electrodes and the separator.

A negative active material for a rechargeable lithium battery includes a compound represented by the following Formula 1:LiTiMO&#x2003;&#x2003;(1)

Negative active material for rechargeable lithium battery, method of preparing the same, and rechargeable lithium battery including the same

A negative active material of a non-aqueous electrolyte battery includes a compound represented by formula 1:LiMVO&#x2003;&#x2003;(1)where 0.1&#x2266;x&#x2266;2.5, 0&#x3c;y&#x2266;0.5, 0.5&#x2266;z&#x2266;1.5, 0&#x2266;d&#x2266;0.5, and M is at least one element selected from the group consisting of Al, Cr, Mo, Ti, W, and Zr.

Negative active material for a non-aqueous electrolyte battery, and a non-aqueous electrolyte battery comprising the same

A negative active material of a rechargeable lithium battery includes a crystalline carbon core having an intensity ratio Ra I(1360)/I(1580) of a Raman Spectroscopy peak intensity I(1360) at a (1360) plane to an Raman Spectroscopy peak intensity I(1580) at a (1580) plane of 0.01 to 0.45 and a shell with a turbostratic or half-onion ring structure coated on the core, the shell including crystalline micro-particles and a semi-crystalline carbon, the shell having an intensity ratio Ra I(1360)/I(1580) of a Raman Spectroscopy peak intensity I(1360) at a (1360) plane to a Raman Spectroscopy peak intensity I(1580) at a (1580) plane of 0.46 to 1.5.

Negative active material for rechargeable lithium battery and method of preparing same

Growing community of inventors

Suwon-si, South Korea

Joon-Sup Kim