西安交通大学强度与振动教育部重点实验室,西安,710049
网络首发:2008-07-10,
纸质出版:2008
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Liang FU 1, 卢天健 2, J. K. LUO 1. 一种微型锌/空气电池的开发[J]. 西安交通大学学报, 2008,42(7):791-794+930.
Liang FU 1, 卢天健 2, J. K. LUO 1. Development of Micro Zinc/Air Battery[J]. 2008, 42(7): 791-794+930.
针对微型自治系统的应用要求
提出了一种具有层状锌电极/碱性电解液/空气阴极结构的微型平板锌空气电池.设计了一种具有高密度微小柱体结构的三维锌电极来获得高空隙率
从而提供最佳的性能.针对所开发的微型电池
根据锌在电解液中的电化学反应原理和电池中的传质过程
综合考虑了质量和电荷守恒定律、液相中的欧姆定律、固相中的电流传输(Buter-Volmer方程)
以及锌分解的析出/分解速率和动力学速率
建立了理论模型
在此基础上模拟并讨论了微型电池的性能.采用四掩模工艺制造了原型微型电池.初步试验结果表明
这种微型电池能够提供的最大功率为5 mW
在2 h内可以稳定提供的平均功率为100 μW.尽管这种微型电池的制造工艺仍然有待进一步优化
但是初步的试验结果已经表明
电池的结构设计和计算机建模结果是令人满意的
这种锌空气电池的概念用于微型自治系统是可行的.
A new planar zinc/air micro-battery
suitable for autonomous microsystem applications
is developed
which possesses a layered structure of zinc electrode/alkaline electrolyte/air cathode. A three-dimensional(3D)zinc electrode with a high density of posts was designed to obtain a high porosity to achieve the fine performance for the micro-batteries. Based on the principle of electrochemistry of zinc in alkaline solution(KOH)and the mass-transportation process in a battery
a theoretical model of the micro-battery was developed and the device performances simulated and discussed. A four-mask process was subsequently developed to fabricate the prototype micro-batteries. The preliminary testing results show that the proposed micro-battery is able to deliver a maximum power up to 5 mW
with an average power of 100 μW at a steady period for up to 2 h. The initial test results indicate the feasibility and applied foreground of the micro zinc/air battery.
KOENEMAN P B, BUSCH-VISHNIAC I J, WOOD K L. Feasibility of micro power supplies for MEMS [J]. J Microelectromech Syst, 1997, 6(4):355-362.
FU Liang, LU Tianjian, HUBER J E. Database and selection method for power sources [J]. Adv Eng Mater, 2005, 7(1): 101-117.
SUNU W, BENNION D N. Transient and failure analyses of the porous zinc electrode [J]. J Electrochem Soc, 1980, 127(9): 2007-2016.
MAO Z, WHITE R E. Mathematical modeling of a primary zinc/air battery [J]. J Electrochem Soc, 1992, 139(4):1105-1113.
CHANG Y, PRENTICE G. A model for the anodic dissolution of zinc in alkaline electrolyte [J]. J Electrochem Soc, 1984, 131(6):1465-1468.
Linden D. Handbook of batteries [M]. New York,USA: McGraw-Hill Inc., 1995: 131-145.
ISAACSON M J, MCLARNON F R, CAIRNS E J. Current density and ZnO precipitation-dissolution distributions in Zn-ZnO porous electrodes and their effect on material redistribution: a two-dimensional mathematical model [J]. J Electrochem Soc, 1990, 137(7): 2014-2021.
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