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Influence of co-depositor materials and modification of substrate on the formation of dendrites on the anode of a zinc-based secondary battery
Sustainable Energy Technologies and Assessments ( IF 8 ) Pub Date : 2020-09-21 , DOI: 10.1016/j.seta.2020.100820
Bart Homan , Diego F. Quintero Pulido , Marnix V. ten Kortenaar , Johann L. Hurink , Gerard J.M. Smit

Dendrite formation poses serious problems in the operation of zinc-based batteries. Electrode material and electrolyte composition are known to have an influence on the dendrite formation. In this paper possible solutions for the reduction of dendrite formation at the anode of a zinc-based battery are studied. The electrochemical behaviour of various electrode materials and electrolyte compositions is researched. It is observed that the tested electrode materials have no significant impact on the reaction at the anode. However, significant reduction in dendrite formation are observed at various electrode materials. The largest reduction in dendrite formation is observed when SGL bipolar graphite is used as electrode material. Furthermore, using several analysis methods (CV, EIS, SEM) it is observed that the addition of low concentrations (around 10% of the main component concentration) of certain additives (MgBr2, MnSO4) to the electrolyte has no significant impact on the electrolyte reaction at the anode, but prevents the formation of dendrites. Finally, the changes in substrate material and electrolyte additive do not have significant influence on the over-all performance of the battery.



中文翻译:

共沉积材料和衬底修饰对锌基二次电池阳极上枝晶形成的影响

枝晶的形成在锌基电池的操作中提出了严重的问题。已知电极材料和电解质成分对枝晶的形成有影响。在本文中,研究了减少锌基电池阳极枝晶形成的可能解决方案。研究了各种电极材料和电解质成分的电化学行为。可以看出,测试的电极材料对阳极的反应没有显着影响。然而,在各种电极材料上观察到树枝状晶体形成的显着减少。当将SGL双极石墨用作电极材料时,观察到最大的枝晶形成减少。此外,使用多种分析方法(CV,EIS,2,MnSO 4)对电解质的影响对阳极处的电解质反应没有显着影响,但是防止了树枝状晶体的形成。最后,基材材料和电解质添加剂的变化不会对电池的整体性能产生重大影响。

更新日期:2020-09-21
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