Method for controlling sodium-sulfur batteries
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United States of America Patent
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Apr 16, 2013
Grant Date -
Aug 25, 2011
app pub date -
Mar 3, 2011
filing date -
Sep 30, 2008
priority date (Note) -
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Abstract
When charge power or discharge power of each individual sodium-sulfur battery included in a plurality of sodium-sulfur batteries becomes 1/n (n is a natural number) or less of a rated output, individual sodium-sulfur batteries are sequentially stopped. This prevents the discharge power (or the charge power) of the sodium-sulfur battery from becoming minute, so that a battery depth (or a stored energy) of the sodium-sulfur battery can be accurately managed.
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