Method for estimating life status of lithium battery

Details Method for estimating life status of lithium battery Method for estimating life status of lithium battery

2008-12-29

2011-12-20

Dunn, Drew A (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Electrical signal parameter measurement system

C702S064000, C702S066000, C320S132000, C320S164000, C324S423000, C324S427000

Reexamination Certificate

active

08082116

ABSTRACT:
A method for estimating a life status of a lithium battery applicable to a portable electronic device is described. The method includes the following steps. Firstly, a plurality of lithium battery life status intervals are sectioned out by a plurality of voltage-electric quantity curves representing characteristics of the lithium battery. Then, an actual voltage and an actual electric quantity of the lithium battery of the portable electronic device are measured. Afterwards, positions of the actual voltage and the actual electric quantity in the lithium battery life status intervals are determined to estimate the life status of the lithium battery.

REFERENCES:
patent: 5672951 (1997-09-01), Shiota

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