Analysis of main factors of Panasonic battery failureBattery failure may be caused by a variety of reasons, such as vulcanization, dehydration, thermal runaway, active material shedding, soft plate and so on, the next will be to introduce and analysis.
The process of charging and discharging. Yuasa is the process of electrochemical reaction discharge, lead sulfate, lead sulfate reduction of lead oxide charge.
Lead battery charging another cause of fever is the vulcanization, vulcanization leads directly to the battery internal resistance increases, which further cause the battery charging fever, fever and the oxygen cycle current rise, so serious sulfide battery thermal runaway occurrence probability of large.
In order to increase the capacity of the battery, the battery is widely used in the current number of plates which leads to increase of the electrode, compared to other battery separator plate thinner lead sulfate crystals with negative plates grow up, after charging small lead sulfate left in the separator, left lead sulfate on the baffle in the once called the reduction of lead. Accumulated more, the battery will be slightly short, this phenomenon is called "lead bypass branch".
YUASA battery in the monomer test, can obtain good results, but for series connected batteries, due to capacity difference, open circuit voltage difference between the original matching error, high voltage charging of the battery will increase the water loss, the low voltage of the battery will be under charging, discharge time, low voltage will appear discharge, the formation of the battery.