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你做电池异常过充,应该是空电池吧
" F; j& \0 [: ~# COvercharging of a rechargeable battery. The battery is charged under each of the/ d0 O5 K. l8 x/ a. R& ?
following conditions in turn.
9 V ?' ^$ e5 X2 F• The battery charging circuit is adjusted with the battery disconnected to give 106 % of. c" C7 A5 D- ]3 s& |9 Q
the rated output voltage of the charger, or the maximum charging voltage available( e" m5 h5 ?9 J
from the charger (without simulation of faults), whichever is the higher attainable
: F; s: ]4 l( h9 y5 i5 uvalue. The battery is then charged for 7 h.; a; }1 e' I( Y& J- @7 ^
• The battery charging circuit is adjusted, with the battery disconnected, to 100 % of the& G6 l3 m) `/ _4 e/ K$ A, h0 ]! p
rated output voltage of the charger. The battery is charged while briefly subjected to
0 d k6 e: b4 mthe simulation of any single component failure that is likely to occur in the charging5 C* [/ @+ F: e' C* K& q" _
circuit and that results in overcharging of the battery. To minimize testing time, the9 t" C4 n9 e3 G: G5 e" _
failure is chosen that causes the highest overcharging current. The battery is then" F+ @4 Y% s& v1 p. }/ o' {, N# U
charged for a single period of 7 h with that simulated failure in place. |
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