Sk Innovation Co., Ltd.

Sk on Co., Ltd.

Ulsan National Institute of Science and Technology

Ceramatec, Inc.

Dai In Park

Myoung Lae Kim

Hyo Shin Kwak

In Haeng Cho

Joo Hyun Lee

Jeong Soo Kim

Seung Ok Lee

Je Hyun Chae

Won Sang Koh

Jinhaek Yang

Inhaeng Cho

Ashok V Joshi

Sung Jin Kim

Sai Bhavaraju

Cheol Woo Kim

Yu Na Shim

Kwang Kuk Lee

Nam Soon Choi

Mathew Robins

Jin Sung Kim

Sung Yon Oh

Jin Haek Yang

Hyung Keun Lee

Alexis Eccleston

Su Hee Han

SeungOk Lee

JeHyun Chae

JeongSoo Kim

WonSang Koh

Jun Yeong Jang

The present invention relates to an electrolytic solution for a lithium secondary battery, and a lithium secondary battery including the same. The lithium secondary battery according to the present invention employs the electrolytic solution for a lithium secondary battery, containing a difluorophosphite compound, according to the present invention, and thus has improved characteristics.

Electrolytic solution for lithium secondary battery, and lithium secondary battery comprising same

The present invention relates to an electrolytic solution for a lithium secondary battery, and a lithium secondary battery comprising the same. The lithium secondary battery according to the present invention employs the electrolytic solution for a lithium secondary battery, containing a difluorophosphite compound, according to the present invention, and thus has improved characteristics.

An electrolyte for a lithium secondary battery according to embodiments of the present invention includes an organic solvent, a lithium salt, and an additive including a cyclic ether-sulfate-based compound. Thereby, cycle characteristics and high-temperature stability of the lithium secondary battery may be improved.

Electrolyte for lithium secondary battery and lithium secondary battery including the same

Provided is a lithium secondary battery including an anode including a silicon-based anode active material; a cathode; and an electrolyte, the electrolyte including a lithium salt, a non-aqueous organic solvent, and a conjugated diene compound.

Lithium secondary battery

Provided are an electrolyte for a secondary battery including a lithium salt, a nonaqueous organic solvent, and a bisfluorophosphite multicyclic compound, and a lithium secondary battery including the electrolyte.

Electrolyte for secondary battery and lithium secondary battery including the same

Provided are an electrolyte for a secondary battery including a lithium salt, a nonaqueous organic solvent, and a difluorophosphite olefin compound, and a lithium secondary battery including the same.

Provided are an electrolyte for a lithium secondary battery and a lithium secondary battery including the same, wherein the electrolyte for a lithium secondary battery of the present invention may improve DC-IR characteristic and battery storage characteristic, and may improve high-temperature stability, low-temperature characteristic, and lifespan characteristic to thereby be effectively used for manufacturing a secondary battery.

Provided are an electrolyte for a sodium secondary battery, and a sodium secondary battery using the same, and the sodium secondary battery using the electrolyte for a sodium secondary battery according to the present invention may have an excellent cycle characteristic, charge-discharge capacity, and stability, thereby making it possible to be operated without deterioration at a low temperature for a long time.

Electrolyte for sodium secondary battery and sodium secondary battery using the same

Provided are an electrolyte for a sodium secondary battery and a sodium secondary battery using the same. More particularly, the sodium secondary battery includes an anode containing sodium, a cathode containing a transition metal, and a sodium ion conductive solid electrolyte provided between the anode and the cathode, wherein the cathode is impregnated in an electrolyte containing a molten sodium salt and an electrolyte additive, the electrolyte additive including an inorganic sodium salt.

Electrolyte for sodium secondary battery and sodium secondary battery using thereof

Provided is a sodium secondary battery capable of operating at a low temperature. More particularly, the sodium secondary battery according to the present invention includes: an anode containing sodium; a cathode containing a transition metal and an alkali metal halide; and a sodium ion conductive solid electrolyte provided between the anode and the cathode, wherein the cathode is impregnated in a molten salt electrolyte containing a sodium.metal halogen salt including at least two kinds of halogens.

Sodium secondary battery

Provided are an electrolyte for a sodium secondary battery, and a sodium secondary battery employing the same, and more particularly, a sodium secondary battery including an anode containing sodium, a cathode containing a transition metal, and a sodium ion conductive solid electrolyte provided between the anode and the cathode. The cathode is impregnated with a mixed salt electrolyte containing a molten sodium salt and an electrolyte additive, and the electrolyte additive contains a non-halogen sodium salt and a metal halide compound simultaneously.

Growing community of inventors

Daejeon, South Korea

Dai In Park