Lithium-ion batteries and methods of operating the same

摘要

The methods and devices described herein generally relate to lithium-ion batteries, methods of preparing, and methods of operating such batteries. The lithium-ion batteries described herein have an improved cycle life. In one exemplary variation, the lithium-ion battery includes an anode including carbon-coated Li4Ti5O12 particles and a cathode including LiMn2O4 particles, and the cathode capacity is larger than the anode capacity.