摘要
The essential conditions under which a stable inorganic metal element-substituted α-Ni(OH)2 with a turbostratic structure can be prepared were discussed. The electrochemical properties of aluminum-substituted α-Ni(OH)2 were investigated systematically using galvanostatic charging/discharging method, voltammetric technique and AC impedance method, and compared with that of β-Ni(OH)2. The results show that its maximum discharge capacity is 275 mAh/g at 68.3 mA/g and its high-rate discharge behavior is excellent. Compared with β-Ni(OH)2, the Al-substituted α-Ni(OH)2 has a higher and flatter discharge plateau, higher charge efficiency and reversibility.
The essential conditions under which a stable inorganic metal element-substituted α-Ni(OH)_2 with a turbostratic structure can be prepared were discussed. The electrochemical properties of aluminum-substituted α-Ni(OH)_2 were investigated systematically using galvanostatic charging/discharging method, voltammetric technique and AC impedance method, and compared with that of β-Ni(OH)_2. The results show that its maximum discharge capacity is 275 mAh/g at 68.3 mA/g and its high-rate discharge behavior is excellent. Compared with β-Ni(OH)_2, the Al-substituted α-Ni(OH)_2 has a higher and flatter discharge plateau, higher charge efficiency and reversibility.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2000年第S1期28-32,共5页
The Chinese Journal of Nonferrous Metals