Non-aqueous electrolyte and electrochemical device with an improved safety

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8968938
APP PUB NO 20090047582A1
SERIAL NO

12087813

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Abstract

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Disclosed are a non-aqueous electrolyte comprising a lithium salt and a solvent, the electrolyte containing, based on the weight of the electrolyte, 10-40 wt % of a compound of Formula 1 or its decomposition product, and 1-40 wt % of an aliphatic nitrile compound, as well as an electrochemical device comprising the non-aqueous electrolyte. Also disclosed is an electrochemical device comprising: a cathode having a complex formed between the surface of a cathode active material and an aliphatic nitrile compound; and an anode having formed thereon a coating layer containing a decomposition product of the compound of Formula 1. Moreover, disclosed is an electrochemical device comprising: a cathode having a complex formed between the surface of a cathode active material and an aliphatic nitrile compound; and a non-aqueous electrolyte containing the compound of Formula 1 or its decomposition product. In addition, disclosed is an electrochemical device comprising: an anode having formed thereon a coating layer containing a decomposition product of the compound of Formula 1; and a non-aqueous electrolyte containing the compound of Formula 1 or its decomposition product.

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Patent Owner(s)

  • LG CHEM, LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ahn, Soon Ho Daejeon, KR 57 1541
Bae, Joon Sung Daejeon, KR 42 484
Ha, Soo Hyun Busan, KR 16 91
Kim, Young Soo Yangsan-si, KR 383 3986
Ku, Cha Hun Daejeon, KR 56 208
Ryu, Duk Hyun Daejeon, KR 47 170
Yoon, Sei Lin Seoul, KR 2 14

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