电动车电池充电时间过长对电池的寿命有影响么（Is the battery charging time too long for the battery life）.docVIP

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电动车电池充电时间过长对电池的寿命有影响么（Is the battery charging time too long for the battery life）.doc

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电动车电池充电时间过长对电池的寿命有影响么（Is the battery charging time too long for the battery life）

电动车电池充电时间过长对电池的寿命有影响么（Is the battery charging time too long for the battery life） Is the battery charging time too long for the battery life? Deep discharge The lead-acid batteries used in automobiles are only unidirectional discharge at the time of ignition, and the power generation opportunity is automatically charged to the battery without causing a deep discharge of the battery. The electric bicycle can not be charged when riding, often more than 60% of the depth of discharge, deep discharge when the concentration of lead sulfate increases, sulfide will be quite serious. Large current discharge Electric car 20 kilometers cruising current is generally 4A, this value has been higher than other areas of battery work current, and speeding overload electric vehicle work current is greater. Battery manufacturers have carried out cycle life tests on 1C charging 70% and 2C discharge 60%. After this kind of life test, the battery can reach 350 times of charge, discharge and cycle life, but the actual effect is very different. This is because the high current work increases the discharge depth by 50%, and the battery accelerates the vulcanization. Therefore, the battery life of the electric tricycle is shorter, because the body of the three wheeled motorcycle is too heavy, and the working current is above 6A. Charging and discharging frequency is high In the field of battery backup power supply, only when blackout will discharge, if a year to stop 8 times, to reach 10 years of life, only 80 cycles charge life, and electric cars a year more than 300 times the charge discharge cycle is very common. Short time charging As the electric bicycle is transportation, not chargeable time, within 8 hours to complete the 36 or 48 volt 20 ampere hour charging, it must increase the charging voltage (typically a single 2.7~2.9 V), when the oxygen evolution voltage exceeds the charge voltage of single battery (2.35 volts) or hydrogen (voltage 2.42 volts), the battery will be due to exces