Samsung Sdi Co., Inc.

Inhaeng Cho

Sanghoon Kim

Pavel Shatunov

Harim Lee

Hyejin Park

Woocheol Shin

Seonghun Jeong

Makhmut Khasanov

Woo Cheol Shin

The present disclosure relates to a lithium secondary battery electrolyte and a lithium secondary battery comprising the lithium secondary battery electrolyte, which comprises: a non-aqueous organic solvent including a branched ester-based solvent represented by formula 1; and a lithium salt.

Lithium secondary battery electrolyte and lithium secondary battery comprising same

Provided are an additive for an electrolyte for a lithium battery, an electrolyte for a lithium battery, the electrolyte including the additive, and a lithium battery using the electrolyte. The additive includes a compound represented by Formula 1:[PO].[B(OSiRRR)]&#x2003;&#x2003;Formula 1 By adding the compound to the electrolyte, the lifetime characteristics of the lithium battery at high temperature may be improved.

Additive for electrolyte of lithium battery, electrolyte for lithium battery including same, and lithium battery employing same electrolyte

A lithium battery includes: a cathode having a mixture density of 3.9 g/cc or greater; an anode; and an electrolyte including a non-aqueous organic solvent disposed between the cathode and the anode, wherein the lithium battery has an operating voltage of 4.4 V or greater, and the non-aqueous organic solvent includes at least one first non-aqueous organic solvent selected from ethyl butyrate and methyl valerate, and the first non-aqueous organic solvent is contained in an amount of 20 to 50 volume % with based on a total volume of the non-aqueous organic solvent.

Lithium battery

Provided are an additive for an electrolyte of a lithium battery; an electrolyte having the same; and a lithium battery using the electrolyte. The additive for an electrolyte of a lithium battery includes a triazine triphosphonate compound.

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Yongin-si, South Korea

Inhaeng Cho