Samsung Sdi Co., Inc.

Seoul National University

Snu Rdb Foundation

Hun-joon Sohn

Dong-min Im

Sang-min Lee

Han-su Kim

Seung-sik Hwang

Jae-myung Lee

Wan-Uk Choi

Goo-Jin Jeong

Seok-gwang Doo

Hee-chul Jung

Won-seok Chang

Su-keun Yoon

Sung-Il Lee

A negative electrode, a lithium battery employing the negative electrode, and a method of preparing the negative electrode. The negative electrode includes a current collector, and a negative electrode active material layer disposed on the current collector. The negative electrode active material layer includes: composite negative electrode active material particles comprising tin (Sn), and conductive metal particles. The conductive metal particles form an intermetallic compound with the Sn, and an average particle size of the conductive metal particles is at least 10 &#x3bc;m.

Negative electrode, lithium battery employing the same, and method of preparing the negative electrode

An negative active material for a rechargeable lithium battery includes a nano-composite including a Si phase, a SiOphase, and a metal oxide phase of formulation MO, where M is a metal with an oxidation number x, a free energy of oxygen-bond formation ranging from &#x2212;900 kJ/mol to &#x2212;2000 kJ/mol, x, and x&#xb7;y=2. The negative active material for a rechargeable lithium battery according to the present invention can improve initial capacity, initial efficiency, and cycle-life characteristics by suppressing its initial irreversible reaction.

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

An anode active material including a tin (Sn)-cobalt (Co) intermetallic compound, titanium (Ti), and carbon (C). The anode active material can include indium (In), niobium (Nb), germanium (Ge), molybdenum (Mo), aluminum (Al), phosphorus (P), gallium (Ga), bismuth (Bi), and/or silicon (Si). The anode active material can be included in an anode, and the anode can be included in lithium battery.

Anode active material, and anode and lithium battery containing the same

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Seoul, South Korea

Hun-joon Sohn