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你做电池异常过充,应该是空电池吧
1 w! [9 f* P: O& t eOvercharging of a rechargeable battery. The battery is charged under each of the7 H: x$ `1 U0 K% W! Y2 }, E- x6 p
following conditions in turn.$ F5 x- s" a% s
• The battery charging circuit is adjusted with the battery disconnected to give 106 % of
1 y d6 z6 t* `, z! U; ?* x+ ^' ^the rated output voltage of the charger, or the maximum charging voltage available
' E( o) `: E( [) b; s: @$ a9 \7 ifrom the charger (without simulation of faults), whichever is the higher attainable# t- @& w0 e) ^9 m4 h7 M
value. The battery is then charged for 7 h.7 T/ I- v) g' F% ?, |
• The battery charging circuit is adjusted, with the battery disconnected, to 100 % of the; d3 y$ I+ S* J
rated output voltage of the charger. The battery is charged while briefly subjected to
0 ^! @4 B5 C0 f6 r* |6 Tthe simulation of any single component failure that is likely to occur in the charging) {: O0 L- { [
circuit and that results in overcharging of the battery. To minimize testing time, the& S N: k* ?1 U- q+ d
failure is chosen that causes the highest overcharging current. The battery is then5 H5 ]" V% p& l2 d. Q; ~/ }
charged for a single period of 7 h with that simulated failure in place. |
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