Lithium Cobalt Oxide (LCO): The Power Core of Portable Electronics
Lithium Cobalt Oxide (LiCoO₂) is one of the earliest and most widely adopted lithium-ion battery cathode materials. Known for its high energy density and reliable performance, LCO has been instrumental in the development of compact, lightweight, and long-lasting rechargeable batteries—especially in portable consumer electronics.
Chemical Overview
Chemical Formula: LiCoO₂
Molar Mass: ~97.87 g/mol
Crystal Structure: Layered hexagonal
Color: Deep blue or gray powder
Operating Voltage: ~3.7 V nominal
Key Features and Benefits
High Energy Density: Ideal for compact devices where space and weight are constraints.
Stable Performance: Provides consistent voltage and discharge characteristics.
Proven Technology: Extensive data and safety protocols exist due to years of usage.
How LCO Works in Batteries
LCO functions as the cathode material in lithium-ion cells. During discharge, lithium ions move from the anode (usually graphite) to the LCO cathode, where cobalt facilitates the reversible intercalation of lithium ions. During charging, the process reverses, restoring lithium ions to the anode.