Graphite Electrode: Influence of Binders on Electrochemical Properties

At present, the lithium-ion batteries are the leading kind of rechargeable electrochemical cells. The battery capacity production growing annually, this year the whole world factory capacity hit 300 GWh. This growth is especially powered by electric vehicle makers and renewable energy sources demands. This growth is connected with technology development that aims to decrease costs and environmental impact. Into this field belong the research and development of new materials for lithium-ion batteries. This work deals with various types of binders used in the negative electrode material of lithium-ion batteries. The materials used as binders were Polyvinylidene fluoride (PVDF), Styrene-butadiene rubber (SBR) and Polyimide P84. Some of those binders are water-base thus more environmentally friendly and bring some advantages like lower drying temperature, non-toxic vapors, etc. The influence of those binders on electrochemical properties of the negative electrode in lithium-ion cell based on graphite are investigated and evaluated.