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你做电池异常过充,应该是空电池吧. F2 M( y1 J Y, |; I
Overcharging of a rechargeable battery. The battery is charged under each of the2 B. ?2 F& {- k* \3 C
following conditions in turn.
& P4 t ?8 r" o0 V" X' Q• The battery charging circuit is adjusted with the battery disconnected to give 106 % of
4 a: t: v8 ?4 y3 t% z9 rthe rated output voltage of the charger, or the maximum charging voltage available# }7 n! F7 _( y& w& ~
from the charger (without simulation of faults), whichever is the higher attainable
* s9 C) d, b% C6 }, s" b2 c! tvalue. The battery is then charged for 7 h.
+ [- n d8 R/ f- z! `3 V$ s• The battery charging circuit is adjusted, with the battery disconnected, to 100 % of the
: _. i, Y m. ^% J6 ]rated output voltage of the charger. The battery is charged while briefly subjected to
6 y- G& T6 ]2 z3 y& j1 sthe simulation of any single component failure that is likely to occur in the charging9 b) H6 G' b+ G1 b7 r
circuit and that results in overcharging of the battery. To minimize testing time, the
3 M9 p* v9 f( ]9 S( _* s" ?" u- b8 _failure is chosen that causes the highest overcharging current. The battery is then+ f+ l! S5 ^/ o) {; v. v
charged for a single period of 7 h with that simulated failure in place. |
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