Quasi-Solid Graphite Anode for Flexible Lithium-Ion Battery

Abstract

Flexible Li-ion batteries (LIBs) have a strong oncoming consumer market demand for use in wearable electronic devices, flexible smart electronics, roll-up displays, electronic shelf labels, active radio-frequency identification tags, and implantable medical devices. This market demand necessitates research and development of flexible LIBs in order to fulfill the power requirements of these next-generation devices. This study investigated the performance of quasi-solid anode — the active and conductive additive materials suspended in liquid electrolyte — for flexible lithium-ion batteries (LIB). A quasi-solid graphite anode was fabricated and tested using different material ratios and compositions, showing an acceptable performance. Furthermore, this study looked into the effect of graphite powder ratios in battery performance. A ratio of over 65% of the specific discharge capacity to the theoretical capacity was achieved maintaining the capacity retention of more than 74% after the second cycle.