Samsung Electronics Co., Ltd.

Samsung Sdi Co., Inc.

Jinsoo Mun

Heechul Jung

Guesung Kim

Gyusung Kim

Junho Park

Jeeeun Yang

A composite negative active material including: a silicon-containing negative active material; and a non-metal doped metal phosphate, wherein the non-metal doped metal phosphate includes two or more metals. Also a negative electrode including the composite negative active material, and a lithium secondary battery including the negative electrode

Composite negative active material, negative electrode including composite negative active material, and lithium secondary battery including negative electrode

A composite anode active material includes a silicon-based material, a metal fluoride, and a carbon-based material. The metal fluoride may be a compound represented by the following formula: MFx, where M is at least one selected from magnesium (Mg), aluminum (Al), titanium (Ti), copper (Cu), zinc (Zn), barium (Ba) and bismuth (Bi), and 0&#x3c;x&#x2264;4.

Composite anode active material, anode including the composite anode active material, and lithium secondary battery including the anode

A composite anode active material includes a metal silicide core, a silicon shell, and a metal nitride and a carbon material that are dispersed in at least one surface of the silicon shell.

Composite anode active material, method of preparing the same, and anode and lithium secondary battery including the composite anode active material

A composite anode active material includes: a silicon anode active material, a metal nitride; and a metal fluoride, wherein the metal nitride and the metal fluoride are each independently disposed on at least one surface of the silicon anode active material.

Composite for anode active material, anode including the composite, lithium secondary battery including the anode, and method of preparing the composite

A composite negative active material, and a negative electrode and a lithium secondary battery that include the composite negative active material, and a method of preparing the composite negative active material are disclosed. The composite negative active material includes: a core including a silicon material and a coating layer disposed on the core, wherein the coating layer includes a water-insoluble polymer composite in which at least one anionic component is chemically bonded to a water-soluble polymer, thereby improving lifespan characteristics of the composite negative active material.

Composite negative active material, negative electrode and lithium secondary battery including the composite negative active material, and method of preparing the composite negative active material

Growing community of inventors

Seoul, South Korea

Jinsoo Mun