Sk Innovation Co., Ltd.

Ulsan National Institute of Science and Technology

Ceramatec, Inc.

Field Upgrading Usa, Inc.

Je Hyun Chae

Jeong Soo Kim

Won Sang Koh

Young Shol Kim

Seung Ok Lee

Dai In Park

Ashok V Joshi

Sai Bhavaraju

Nam Soon Choi

Mathew Robins

Hee Young Sun

Alexis Eccleston

June Soo Lee

Jun Yeong Jang

Kyu Tae Lee

Seung Hee Woo

Kwang Ho Ha

Provided is a Na based secondary battery including: an anode containing sodium or a sodium alloy; a cathode containing a metal halide, which is a halide of at least one metal selected from a group consisting of alkali metals, transition metals, and Groups 12 to 14 metals, and a solvent dissolving the metal halide; and a sodium ion conductive solid electrolyte separating the cathode and the anode from each other.

Na based secondary battery

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 cathode active material for a secondary battery, specifically, a cathode active material for a secondary battery including sodium transition metal pyrophosphate satisfying NaAMM(PO), which has an advantage of structural stability due to a strong P&#x2014;O bond of sodium transition metal phosphate having an olivine structure, and also performs proper intercalation and deintercalation of Na ions having a large ion radius, thereby significantly improving reversibility during charging and discharging, and a charge and discharge rate.

Positive electrode active material for secondary battery

Provided is a current collector including a laminate in which a conductive substrate and an insulator are laminated, wherein the insulator is a porous insulator formed with an open pore channel penetrating through the insulator. The current collector may be used as a current collector for an electrode of a secondary battery and stably maintain capacity of the secondary battery at the time of repeating charge and discharge cycles.

Current collector for battery and secondary battery comprising the same

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

Growing community of inventors

Daejeon, South Korea

Je Hyun Chae