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你做电池异常过充,应该是空电池吧0 d* p k8 r2 b4 E' T, U1 J! G
Overcharging of a rechargeable battery. The battery is charged under each of the
8 @! C* D$ a2 ]3 ]5 ]+ P- b6 Ofollowing conditions in turn.3 ]5 R* T' s( i& X* l; B# ^1 _
• The battery charging circuit is adjusted with the battery disconnected to give 106 % of" D: E5 I' C: x) f; Y3 p! U/ K
the rated output voltage of the charger, or the maximum charging voltage available
/ `7 z6 d3 H; n, z& k: ?" rfrom the charger (without simulation of faults), whichever is the higher attainable
3 d6 o& w% u# u) C7 b% h/ ^9 Svalue. The battery is then charged for 7 h.
3 }' |6 ^- Z* Y, C9 d5 \ j$ {• The battery charging circuit is adjusted, with the battery disconnected, to 100 % of the7 x. d$ X$ X) x' U
rated output voltage of the charger. The battery is charged while briefly subjected to& |2 v0 s) H" Y- m/ l) _
the simulation of any single component failure that is likely to occur in the charging3 x' I; Q. T- R% w9 m( X6 T
circuit and that results in overcharging of the battery. To minimize testing time, the
0 C0 n* \# x3 r7 w- yfailure is chosen that causes the highest overcharging current. The battery is then
3 R4 w! `$ \, [( ^* mcharged for a single period of 7 h with that simulated failure in place. |
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