LITHIUM-ION BATTERY AND MEDICAL DEVICE

摘要

A lithium-ion battery includes a positive electrode that includes a current collector that includes a positive electrode comprising a current collector and an active material comprising a material selected from the group consisting of LiCoO₂, LiMn₂O₄, LiNi_xCo_yNi_(1-x-y)O₂, LiAl_xCo_yNi_(1-x-y)O₂, LiTi_xCo_yNi_(1-x-y)O₂, and combinations thereof. The battery also includes a negative electrode that includes a current collector and an active material comprising a lithium titanate material. The current collector of the negative electrode includes a material selected from the group consisting of aluminum, titanium, silver, and combinations thereof. The battery is configured for cycling to near-zero-voltage conditions without a substantial loss of battery capacity.