Samsung Sdi Co., Inc.

Mk Electron Co., Ltd.

Seoul National University

Fairchild Korea Semiconductor Ltd.

Sejong University

Jongsoo Cho

Jaehyuk Kim

Soonsung Suh

Jaemyung Kim

Hana Yoo

Deokhyun Kim

Yungu Cho

Jeongtae Kim

Seungwhan Lee

Yulsang Lee

Sunghwan Hong

Heesang Jeon

Soonho Hong

Chansoon Kang

Kibuem Kim

Kyuhwan Oh

A negative electrode active material includes a silicon-based alloy represented by Si-M-M-C&#x2014;B, wherein Mand Mare different from each other and are each independently selected from magnesium, aluminum, titanium, vanadium, chromium, iron, cobalt, nickel, copper, zinc, gallium, germanium, manganese, yttrium, zirconium, niobium, molybdenum, silver, tin, tantalum, and tungsten. In the silicon-based alloy, Si is in a range of about 50 at % to about 90 at %, Mis in a range of about 10 at % to about 50 atom %, and Mis in a range of 0 at % to about 10 at %, based on a total number of Si, M, and Matoms. C is in a range of about 0.01 to about 30 parts by weight, and B is in a range of 0 to about 5 parts by weight, based on a total of 100 parts by weight of Si, M, and M.

Negative electrode active material and method of preparing the same

A negative electrode active material for a lithium secondary battery including silicon (Si), manganese (Mn), Component A including at least one selected from iron (Fe), molybdenum (Mo), chromium (Cr), zinc (Zn), titanium (Ti), nickel (Ni), vanadium (V), tungsten (W), and yttrium (Y), and Component B including at least one selected from carbon (C), boron (B), oxygen (O), nitrogen (N), phosphorous (P), and sulfur (S), wherein a total amount of Si, Mn, and Component A is about 70 atom % or less, an amount of Component B is 30 atom % or more, and a total amount of Mn and Component A is in a range of about 10 atom % to about 35 atom %.

Negative electrode active material for lithium secondary battery, and lithium secondary battery including negative electrode including the negative electrode active material

Provided is a negative active material for a secondary battery which provides high capacity, high efficiency charging-discharging characteristics. The negative active material includes: a silicon single phase; and a silicon-metal alloy phase interfaced with the silicon single phase and surrounding the silicon single phase, wherein an X-ray diffraction spectrum of the negative active material has first and second peaks that are originated from the silicon-metal alloy phase, and the first peak is located at 49.1+/&#x2212;0.5 degrees (&#xb0;) and the second peak is located at 38.0+/&#x2212;0.5 degrees (&#xb0;), and a diffraction intensity of the first peak is 2 or less times that of to the second peak.

Negative active material for secondary battery, negative electrode and lithium battery each including negative active material, and method of preparing negative active material

A serializer/deserializer interfaces a microprocessor/controller with I/O devices over a flexible hinging cable. The I/O devices have parallel interfaces as does the controller but the serializer/deserializer reduces the number of signal that traverse the flexible hinging cable. LCD displays, cameras, keypads and audio signals handled by the invention.

Serializer for multiple applications

Growing community of inventors

Seoul, South Korea

Jongsoo Cho