Anode Materials for Li-ion Batteries
Anode materials are the negative electrode in lithium-ion batteries and are paired with cathode materials in a lithium-ion cell. The anode materials in lithium-ion cells act as the host where they reversibly allow lithium-ion intercalation / deintercallation during charge / discharge cycles. General criteria for selection of suitable intercalation-based anode materials include (i) low first cycle irreversible loss, (ii) high coulombic efficiency, (iii) fast lithium-ion diffusion into and out of the anode, (iv) high ionic and electronic conductivity, (v) minimum structural changes upon charge and discharge, (vi) high specific capacity (mAh/g), and (vii) the ability to form and maintain a stable SEI (Solid Electrolyte Interface) layer upon cycling. In addition to standard anode materials, NEI can also provide customized anode materials based on the customer’s needs.
Lithium titanate (Li4Ti5O12) is an electrode material with exceptional electrochemical stability, often used as the anode in lithium-ion batteries for applications that require high rate, long cycle life, and high efficiency. LTO-based batteries are considered safer and have a wider operating temperature range.
NEI specializes in developing new compositions and particle morphologies (including nanoscale particle engineering) and has been a long trusted source for customized cathode and anode materials used in lithium-ion batteries.