Korea Institute of Science and Technology

Ghulam Ali

Kyung Yoon Chung

Hun-Gi Jung

Byung Won Cho

Ji-young Kim

Won Young Chang

Hyungseok Kim

Si Hyoung Oh

Sang Ok Kim

Ji-Hoon Lee

Wonchang Choi

Mobinul Islam

An anode active material for a sodium ion secondary battery, a sodium ion secondary battery including an anode active material, and an electric device including the sodium ion secondary battery are disclosed. The anode active material for a sodium ion secondary battery includes a cobalt tin spinel oxide represented by CoSnO. The sodium ion secondary battery includes an anode made of an anode active material composed of a cobalt tin spinel oxide represented by Chemical Formula 1 below:CoSnO,&#x2003;&#x2003;Chemical Formula 1

Anode active material, a sodium ion secondary battery including an anode active material, and an electric device including the secondary battery

Disclosed is an anode material for a sodium secondary battery. The anode material includes a tin fluoride-carbon composite composed of a tin fluoride and a carbonaceous material. The anode material can be used to improve the charge/discharge capacity, charge/discharge efficiency, and electrochemical activity of a sodium secondary battery. Also provided are a method for preparing the anode material and a sodium secondary battery including the anode material.

Anode material for secondary battery,secondary battery including the anode material and method for preparing the anode material

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Seoul, South Korea

Ghulam Ali