Polarization characteristics of electrochemical battery hybrid system

Sixteenth Annual Battery Conference on Applications and Advances. Proceedings of the Conference (Cat. No.01TH8533) Pub Date : 2001-01-09 DOI:10.1109/BCAA.2001.905152

L. Jarvis, T. Atwater, P. Cygan, M. P. Roberts

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Abstract

The polarization characteristics of potential electrochemical components of an unregulated battery hybrid system were studied. The components under study included two lead-acid cells (2 Ah prismatic cell and a 1 Ah cylindrical cell), and a 1.7 Ah cylindrical nickel metal hydride cell as the high power density but low energy density component, and a 30 Ah zinc-air cell as the high energy density but moderate power density component. The prismatic lead-acid cell was found to have more favorable characteristics than the cylindrical design for an electrochemical battery hybrid system. In comparison to the lead-acid system, the nickel-metal hydride cell, because of its greater charge potential and current required, is not a good candidate for an unregulated hybrid system. The zinc-air system has desirable polarization characteristics for the high-energy hybrid component. Overall, under identical load and cut-off voltage, a hybrid system utilizing the zinc-air and lead-acid batteries provided 40% greater energy than a zinc-air/nickel-metal hybrid system, translating to longer operational time.

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电化学电池混合系统的极化特性

研究了非调节电池混合系统电位组分的极化特性。所研究的组件包括两个铅酸电池(2 Ah柱状电池和1 Ah圆柱状电池)，一个1.7 Ah圆柱镍金属氢化物电池作为高功率密度但能量密度低的组件，一个30 Ah锌空气电池作为高能量密度但功率密度中等的组件。在电化学电池混合系统中，柱状铅酸电池比柱状铅酸电池具有更优越的性能。与铅酸系统相比，镍氢电池由于其更大的电荷电位和所需的电流，不适合用于非调节混合系统。锌-空气体系具有良好的极化特性，可用于高能混合动力部件。总的来说，在相同的负载和截止电压下，使用锌-空气和铅酸电池的混合系统比锌-空气/镍-金属混合系统提供的能量多40%，从而延长了工作时间。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Sixteenth Annual Battery Conference on Applications and Advances. Proceedings of the Conference (Cat. No.01TH8533)

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