Hydroxylamine hydrochloride: A novel anode material for high capacity lithium-ion batteries

• Published in: Journal of power sources 2014-12, Vol.272, p.39-44
• Main Authors: Shao, Lianyi, Shu, Jie, Lao, Mengmeng, Lin, Xiaoting, Wu, Kaiqiang, Shui, Miao, Li, Peng, Long, Nengbing, Ren, Yuanlong
• Format: Article
• Language: English
• Subjects: Anodes; Applied sciences; Charge; Cycles; Direct energy conversion and energy accumulation; Discharge; Electrical engineering. Electrical power engineering; Electrical power engineering; Electrochemical conversion: primary and secondary batteries, fuel cells; Exact sciences and technology; Graphite; Lithium; Lithium-ion batteries; Materials; Storage capacity
• ISSN: 0378-7753; 1873-2755
• DOI: 10.1016/j.jpowsour.2014.08.065

H sub(3)NOHCl is used for the first time as anode material for lithium-ion batteries. Electrochemical results show that H sub(3)NOHCl with particle size of 4-12 pm can deliver an initial charge capacity of 1018.6 mAh g super(-1), which is much higher than commercial graphite. After 30 cycles, the reversible capacity can be kept at 676.1 mAh g super(-1) at 50 mA g super(-1). Up to 50 cycles, H sub(3)NOHCl still maintains a lithium storage capacity of 368.9 mAh g super(-1). Even cycled at 200 mA g super(-1) H sub(3)NOHCl can deliver a charge capacity of 715.7 mAh g super(-1). It suggests that H sub(3)NOHCl has high lithium storage capacity, excellent cycling stability and outstanding rate performance. Besides, the electrochemical reaction between H sub(3)NOHCl and Li is also investigated by various ex-situ techniques. It can be found that H sub(3)NOHCl irreversibly decomposes into Li sub(3)N and LiCl during the initial discharge process and LiNO sub(2) can be formed after a reverse charge process.