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Personal Data Assistants (PDAs), digital cameras, laptop
computers and cell phones have enthusiastically embraced the
Lithium-Ion battery as their power source of choice. While the few
select designers of these devices had a wide variety of batteries
to choose from (such as alkaline, NiMH and NiCd), the Lithium-
Ion battery became the preferred power source. This preference
was due to the Lithium-Ion’s high energy density by weight and
volume, its relatively low self-discharge rate and no “memory”.
Charging Simplified for High Capacity
Batteries
By Bonnie C. Baker, Microchip Technology Inc.


ANALOG DESIGN NOTE ADN008
Personal Data Assistants (PDAs), digital cameras, laptop Panasonic Lithium-Ion battery with a typical capacity of
computers and cell phones have enthusiastically embraced the 1550 mAh, has a preferred charging rate of 1.085A (or 70%
Lithium-Ion battery as their power source of choice. While the few of capacity). Panasonic suggests that the charging process
select designers of these devices had a wide variety of batteries takes approximately two hours at 20°C. If, for some reason,
to choose from (such as alkaline, NiMH

关键词： 高容量电池   电池充电