英语翻译From the charge voltage curve ,it is known the charge pr

英语翻译
From the charge voltage curve ,it is known the charge process is divided into three stages :
preliminary charge stage ; senior charge stage ; overcharge stage.Preliminary charge stage is the
period during which the NiMH battery is to be charged.During this stage ,the battery voltage
quickly raises to the spot A due to the voltage on the internal cell resistance and enters the senior
charge stage.Usually ,the period of preliminary stage is very short .In the senior charge stage ,the variation of charge voltage is mainly the variation of battery voltage because the internal cell resistance hardly varies.So the battery capacity is larger and larger .The battery voltage increases
gradually until it reaches the maximum.And now ,the battery has been charged with a large
amount of energy.The period of the senior charge stage determines the time of the whole charge
process.Up to the overcharge stage ,the battery voltage has reached the maximum and the battery obtains more than 90 percent of the whole capacity.If the battery is charged continuously ,
the battery temperature and the internal pressure will increase quickly ,however the battery voltage will decrease gradually.So it is very effective to prevent the battery from being overcharged for a long time.
The essence of the NiMH battery charge process is the electrochemical process occurred in
the battery.Accompanied with the electrochemical reaction ,oxygen and hydrogen are generated
in the battery.The reaction of oxygen and hydrogen gas generation is expressed in Eqs.
In the electrochemical reaction the bubbles of hydrogen and oxygen can surround the electrodes ,which decreases the area that takes part in the electrochemical reaction and increases the resistance so as to prolong the charge progress.Usually at the beginning of charging ,most current are absorbed by the active material on the elect rode ,so little gas is generated.Under the condition that the speed of generating gas is lower than the speed of the solution and the gas recombination reaction ,the excessive pressure is prevented from building up in the battery.After the battery is charged fully ,the most of current isn’ t transformed into the store energy of battery but is used to promote the electrochemical reaction of generating hydrogen and oxygen ,and then ,the pressure in the battery will increase up to excess and the battery will be destroyed.In the over charge stage ,the excessive oxygen will transform NiOOH into Ni (OH) 2 .As a result ,the battery voltage decreases.

从充电电压曲线,它是已知的收费过程分为三个阶段:
初步的电荷阶段;负责向高级阶段.初步的收费的
镍氢电池的期间,将受到指控.在这个阶段,电池电压
迅速提高到一个由于电压的内部细胞抵抗和进入高级
费用的阶段.通常,这个时期的初步阶段是很短暂的.在高级费用的变化阶段,充电电压变化的主要是由于内部电池充电电压随抗几乎.所以电池容量增大.电池电压升高
直至达到最大逐渐.而现在,电池已被指控大
大量的精力.这个时期的高级阶段的费用确定整个费用
过程.到过阶段,电池电压已经达到最高和电池获得超过90%的整体能力.如果电池充电,

电池温度和内部的压力将会迅速增加,然而电池电压将逐渐减小.所以这是非常有效的防止电池被收了好长一段时间.
镍氢电池的本质是电化学过程收费过程发生在
电池没电了.伴随着电化学反应、氧和氢
在电池.这个反应的氧和氢气体产生Eqs表达.

在电化学反应的氧和氢电极可以环绕着,减少区域,参加了电化学反应并增加阻力延长电荷的进步.平常开始充电,目前最被吸收的活性物质,因此在选举骑着小气体产生.的情况下产生的气体速度低于溶液的速度和气体重组反应,过多的压力而建立的电池.电池充电以后,大部分目前还没变成储存能量的电池,但被用来促进电化学反应产生氢气和氧气,然后,压力在电池将增加到过量和电池将被销毁.在这个阶段,过多过充氧会转变成镍(哦)NiOOH 2.作为一个结果,电池电压下降.