LITHIUM ION

Products

Rechargeable Lithium Ion (Li-Ion) cells have a negative electrode (anode) made from lithium compounds. Lithium is a highly reactive material and is much lighter than the hydrogen-absorbing metal alloy of the NiMH negative electrode. This leads to higher gravimetric energy densities for the Li-Ion cell.

Cells can stay in storage for 12 months without requiring maintenance. The expected cycle life of a Li-Ion in an application is about 500+ cycles.

Over 40 Standard Cells

Standard and Custom PCM
Customized Cell Size

Multiple Form Factors

Cylindrical Form Factor
Prismatic Form Factor

Table 1

Advantages	DIsadvantages	Typical Application
Very high Volumetric and gravimetric energy density. Good storage characteristics	High cosy, costly charge and discharge control required, lower rate capability, low high temperature performace, potential health risks/catastrophic failures	Laptops, cellular phones, electric vehicles, digital cameras, camcorders, and DVD players

Table 2: Charge/Discharge Chemical Reactions

Typical Performance Characteristics of Lithium Ion Batteries
Operational Battery Voltage	4.2 to 2.7 Volts
Specific Energy	100 to 158 Wh/Kg
Energy Density	185 to 220 Wh/L
Power Density	245 to 430 W/Kg
Continuous Rate Capability	Typical: 1C High Rate: 5C
Pulse Rate Capability	Up to 15C
Cycle Life at 100% DOD	Typically 500
Calendar Life	3 - 5 years
Self Discharge Rate	0.3% / month
Operable Temperature Range	-20 °C to 60 °C
Memory Effect	None

Note: Characteristics can change according to improvements in chemistry or special niche requirements.

Lithium Ion

Over 40 standard cells and multiple form factors