Studies on rechargeable NiMH batteries
Studies on rechargeable NiMH batteries
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DOI：
10.1016/j.ijhydene.2005.04.018
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发表时间：
2006-03
影响因子：
7.2
通讯作者：
T. Ying;X. P. Gao;W. Hu;Feng Wu;D. Noréus
中科院分区：
文献类型：
--
作者：
T. Ying;X. P. Gao;W. Hu;Feng Wu;D. Noréus
镍氢电池在功率、循环寿命和环境等方面具有一定的优势。然而，它们正面临来自其他可充电电池（如锂离子电池）的挑战。本文分析了提高镍氢电池性能和降低成本的可能性。讨论了提高能量密度和降低电池成本的途径。通过改善稀土系AB_5型氢化物合金负极的比容量和提高氢氧化镍电极的容量，试图提高镍氢电池的能量密度。研制了一种成本较低的小型圆柱形镍氢电池，并对其性能进行了评价。
Nickel-metal hydride (NiMH) batteries offer some advantages in the aspects of power, cycle life and environment. However, they are encountering challenge from other rechargeable batteries such as Li-ion batteries. In this paper, the possibility of performance improvements and cost reduction of NiMH batteries were analyzed. Some approaches to improve energy densities and reduce the battery cost were discussed. An attempt to increase the energy density of NiMH batteries was made through improvements in the specific capacity of rare earth-based AB5-type hydride alloys in the negative electrodes and capacity enhancement of nickel hydroxide electrode. A relatively lower cost small cylindrical NiMH cell was constructed and its properties were evaluated.