|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Materials for Energy Conversion and Storage
||Evaluation of Thin-film Aluminum Anodes for Lithium-ion Batteries
||Mohammad Hossein Tahmasebi , Dominik Kramer, Reiner Mönig, Steven T. Boles
|On-Site Speaker (Planned)
||Steven T. Boles
Aluminum is an attractive anode material for lithium-ion batteries due to its low cost, relative abundance, and high theoretical capacity (993 mAh g−1 for AlLi). However, its degradation mechanism is poorly understood compared to other alloy anode candidates such as silicon and tin. In this study, we have investigated the degradation of sputtered aluminum thin-film anodes during lithiation and delithiation using electrochemical techniques such as cyclic voltammetry, galvanostatic lithiation/delithiation tests and electrochemical impedance spectroscopy. Moreover, in order to evaluate the effect of electrolyte-type on cycling performance and fading rate, electrochemical tests were carried out with various electrolytes and surface morphological changes of the electrodes were studied by intermittent scanning electron microscopy during cycling. Implications for future aluminum anode development will be discussed.