Samsung Sdi Co., Inc.

Yu-Jeong Cho

Su-Kyung Lee

Jae-Myung Kim

So-Ra Lee

Ui-Song Do

Chang-Su Shin

Sang-Eun Park

Ha-Na Yoo

Deok-Hyun Kim

Kyu-Nam Joo

Sang-Hyuck Ahn

Hyun-Ki Park

Yeon-Gap Kim

Xianhui Meng

Young-Jin Choi

Provided is a lithium battery including: a positive electrode, a negative electrode, and an organic electrolytic solution, wherein the negative electrode has a metal/metalloid nanostructure, and the organic electrolytic solution includes a lithium sulfonimide-based compound.

Lithium battery

Disclosed are a negative active material for a rechargeable lithium battery including a silicon-based material including SiOparticles, where 0&#x3c;x&#x3c;2, and a Si&#x2014;Fe&#x2014;containing alloy positioned on the surface of the SiO(0&#x3c;x&#x3c;2) particles, a method of preparing the same, and a negative electrode and a rechargeable lithium battery including the same.

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

A negative active material includes a conductive unit bound in island-like form to silicon-based nanowires on a carbonaceous base. Such negative active material may improve the electrical conductivity of the silicon-based nanowires, and suppress separation of the silicon-based nanowires caused from volume expansion, and thus may improve lifetime characteristics of a lithium battery.

Negative active material, negative electrode, and lithium battery

A composite anode active material, an anode and a lithium battery each including the composite anode active material, and a method of preparing the composite anode active material. The composite anode active material includes a composite core, and a coating layer covering at least a region of the composite core, wherein the composite core includes a carbonaceous substrate and a metal/semi-metal nanostructure on the carbonaceous substrate, the coating layer is more predominant on the nanostructure than on the carbonaceous substrate, and the coating layer includes a metal oxide.

Composite anode active material, anode and lithium battery comprising the material, and method of preparing the same

In an aspect, a composite anode active material including: a porous particles, said porous particles including: a plurality of composite nanostructures; and a first carbonaceous material binding the composite nanostructures, wherein the porous particles have pores within the particle, and wherein the composite nanostructures include a crystalline second carbonaceous material substrate including at least one carbon nano-sheet, and a plurality of metal nanowires arranged at intervals on the crystalline second carbonaceous material substrate is disclosed.

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

A negative active material and a lithium battery are provided. The negative active material includes a composite core, and a coating layer formed on at least part of the composite core. The composite core includes a carbonaceous base and a metal/metalloid nanostructure disposed on the carbonaceous base. The coating layer includes a metal oxide coating layer and an amorphous carbonaceous coating layer.

Negative active material, and negative electrode and lithium battery each including the negative active material

A negative active material and a lithium battery including the negative active material. The negative active material includes a carbonaceous substrate with a plurality of recessed portions at its surface; and a silicon-based nanowire placed in each of the recessed portions. The negative active material provides the silicon-based nanowires with separate places to control volumetric expansion of the silicon-based nanowires, and thus, a lithium battery including the negative active material has improved efficiency and lifetime.

Growing community of inventors

Yongin-si, South Korea

Yu-Jeong Cho