Polymer Application in Construction of Lithium-ion Batteries: A Review

Polymers are commonly applied in construction of rechargeable lithium-ion batteries (LiBs). The role of polymer on LiB electrochemical performance is discussed in detail. Literature reviews show that the use of various polymers in construction of LiBs is growing especially as electrolyte, electrode binder, current collector and separator. The polymer type significantly affects the electrochemical performance of LiBs including the capacity, cycle life, and thermal and mechanical stability of battery components. Our literature research indicates that the polymer electrolytes are going to be widely used in LiBs due to their safety and good electrochemical performance. Recently, the major studies have focused on finding appropriate alternatives amongst hydrophilic polymers as electrode binders in LiBs with aqueous electrolytes to enhance ion diffusion through developed hydrophilic properties.