Investigating the High-Capacity Biopolymer Cashew Gum Binder for Lithium Ion Battery Silicon Anode Manufacturing

Although silicon (Si)-based materials show a great deal of promise for lithium-ion batteries, which store energy, they have several drawbacks that reduce their use. For instance, since they enlarge greatly throughout the lithiation/delithiation process, their capacity rapidly decreases and they only survive a few cycles. It is imperative that this issue be resolved, and changing the anode binder material is a crucial tactic for improving electrode performance. A desirable option in this regard is cashew gum (CG), a biopolymer made from Anacardium occidentale. Cyclic voltammetry, scanning electron microscopy, galvanostatic discharge-charge test were used to analyze the cashew gum electrodes. The excellent morphology of the composite sample of 3 weight percent CG produced using a straightforward method provided an amazing discharge capacity of 875.2 mAhg-1 at a current density of 300 mAg-1 and 120 cycles. The cashew gum binder's ability to address the difficulties related to the anode of silicon energy storage lithium-ion batteries application was validated by the electrochemical tests.