TY - JOUR
T1 - Na3NH2B12H12 as high performance solid electrolyte for all-solid-state Na-ion batteries
AU - He, Liqing
AU - Lin, Huaijun
AU - Li, Hai Feng
AU - Filinchuk, Yaroslav
AU - Zhang, Junjun
AU - Liu, Ying
AU - Yang, Mingyang
AU - Hou, Yan
AU - Deng, Yonghong
AU - Li, Hai Wen
AU - Shao, Huaiyu
AU - Wang, Liping
AU - Lu, Zhouguang
N1 - Funding Information:
This work was partially supported by the National Natural Science Foundation of China (No. 21671096, No. 21603094, and No. 51732005), the National Key R&D Program of China (No. 2018YFB0104300), the Basic Research Project of the Science and Technology Innovation Commission of Shenzhen (No. JCYJ20170412153139454, No. JCYJ20170817110251498), JSPS KAKENHI Grant (No. JP 15KK0212) and Macau FDCT (No. 118/2016/A3).
Funding Information:
This work was partially supported by the National Natural Science Foundation of China (No. 21671096 , No. 21603094 , and No. 51732005 ), the National Key R&D Program of China (No. 2018YFB0104300 ), the Basic Research Project of the Science and Technology Innovation Commission of Shenzhen (No. JCYJ20170412153139454 , No. JCYJ20170817110251498 ), JSPS KAKENHI Grant (No. JP 15KK0212) and Macau FDCT (No. 118/2016/A3 ).
Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2018/8/31
Y1 - 2018/8/31
N2 - Solid electrolyte with stable and fast Na+ ionic conductivity is of central importance in the development of all-solid-state sodium batteries. Here we present a novel Na+ conductor based on complex hydrides with composition of Na3NH2B12H12. It exhibits remarkable thermal stability up to 593 K and excellent electrochemical stable window up to 10 V (vs. Na+/Na). It demonstrates a high Na+ conductivity of 1.0 × 10−4 S cm-1 at a temperature of 372 K, which is much higher than those of its precursors NaNH2 and Na2B12H12. All-solid-state Na-ion batteries were constructed by employing the obtained Na3NH2B12H12 as electrolyte, TiS2 as cathode and sodium foil as anode, which can reversibly discharge/charge for over 200 cycles with more than 50% capacity retention at temperature of 353 K and a rate of 0.1 C. This work opens the gate to develop advanced solid electrolytes via combination of metal amides with closo borates.
AB - Solid electrolyte with stable and fast Na+ ionic conductivity is of central importance in the development of all-solid-state sodium batteries. Here we present a novel Na+ conductor based on complex hydrides with composition of Na3NH2B12H12. It exhibits remarkable thermal stability up to 593 K and excellent electrochemical stable window up to 10 V (vs. Na+/Na). It demonstrates a high Na+ conductivity of 1.0 × 10−4 S cm-1 at a temperature of 372 K, which is much higher than those of its precursors NaNH2 and Na2B12H12. All-solid-state Na-ion batteries were constructed by employing the obtained Na3NH2B12H12 as electrolyte, TiS2 as cathode and sodium foil as anode, which can reversibly discharge/charge for over 200 cycles with more than 50% capacity retention at temperature of 353 K and a rate of 0.1 C. This work opens the gate to develop advanced solid electrolytes via combination of metal amides with closo borates.
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U2 - 10.1016/j.jpowsour.2018.06.054
DO - 10.1016/j.jpowsour.2018.06.054
M3 - Article
AN - SCOPUS:85048809058
SN - 0378-7753
VL - 396
SP - 574
EP - 579
JO - Journal of Power Sources
JF - Journal of Power Sources
ER -
