Abstract

An aqueous rechargeable lithium ion battery with metallic cadmium as the negative electrode, LiCoO₂ nanoparticles as the positive electrode, and a neutral aqueous electrolyte solution of 0.5 M Li₂SO₄ and 10 mM Cd(Ac)₂ is reported. It has good electrochemical performance. The calculated energy density based on the practically available capacity of the two electrodes is 72 W h kg^–1; this is comparable to that of Ni–Cd batteries. The positive mercury electrode of the Weston cell is replaced by a LiCoO₂ electrode, the negative cadmium amalgam by a plain cadmium metal electrode. Mercury is completely avoided. Compared with Ni–Cd batteries an alkaline electrolyte solution is not needed making the system more environment-friendly.

中文翻译：

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基于金属镉和LiCoO 2的高倍率可充电锂离子水电池

抽象的

报道了一种以金属镉为负极，LiCoO ₂纳米颗粒为正极，以及0.5M Li ₂ SO ₄和10mM Cd（Ac）₂的中性水溶液的水性可再充电锂离子电池。具有良好的电化学性能。根据两个电极的实际可用容量计算得出的能量密度为72 W h kg ^–1；这可与镍镉电池相比。Weston电池的正汞电极被LiCoO ₂代替电极，负极汞齐由普通的镉金属电极制成。完全避免使用汞。与镍镉电池相比，无需使用碱性电解液即可使系统更加环保。