Lilon power expands portable applications

Ginder, David; Stone, Jim; De Mint, Art
January 2005
Portable Design;Jan2005, Vol. 11 Issue 1, p22
The article reports that Lilon power expands portable applications. The energy density of Lilon batteries has made this battery type competitive with nickel-based batteries. Useful watt-hours can be 50% higher with Lilon. Handheld systems can save ounces of weight an important but not overriding consideration. High-power portables can save pounds with Lilon, a weight difference that is difficult to refuse. Lilon also has advantageous cycle life and self-discharge qualities. Total life-cycle cost, especially considering maintenance and downtime, is significantly improved. Battery types with shorter cycle life must include excess initial capacity to provide sufficient capacity later in life. Products with long storage periods can be assured of nearly full standby capacity with Lilon. The most cost-sensitive products use dissipative cell balancing. Cells that approach 100% capacity during charge are connected to a small load to reduce their individual charge rates. Cells at a lower capacity continue to charge at full rate. All cells eventually approach the same charge state when fully charged. Due to inherent capacity variations, they may be at different charge states at the end of a discharge.


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