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What 48v Li ion Car Battery Troubles?

Shenzhen Sinoli Electronic Co.,Ltd | Updated: Nov 24, 2018

According to the "China New Energy Vehicle Big Data Research Report (2018)" (research data show that pure electric passenger vehicle with NCM material power battery has the following faults: mismatch of rechargeable energy storage system, low SOC alarm, under-voltage of on-board energy storage device type, under-voltage alarm of single battery and poor consistency of power battery. Typically, the amount of TOP5 faults caused by NCM li ion battery accounts for 78% of the total fault amount.  NCM is a very active chemical li ion battery, suppose 48v 3.5kwh NCM li ion car battery occur any trouble would not be a small problem. we should take seriouse consideration with that.


The pure electric passenger car with lithium iron phosphate power battery has poor consistency of power battery, SOC jump alarm, under-voltage of on-board energy storage device type, over-voltage of on-board energy storage device type and low SOC alarm as the main fault sources. The TOP5 fault takes up 96% of the total fault of pure electric passenger car with lithium iron phosphate power battery. Lithium iron phosphate power battery has a long history in car application. we still remember the car fire in Nanshan street. iron phosphate battery is kind of much dum chemsitry characteristic. when it applicated in high power, like 48v 3.5kwh car system, big drains shall pass through each cell requires much higher performance of battery designe.


In the fault distribution of plug-in passenger cars using lithium iron phosphate power batteries, 98% concentrated on SOC-related faults, among which 96% were alarmed by excessive SOC. well as we all know, manganse could give very big power, which would probably fit the need of car system, like 48v 3.5wh. actually, facts approves that it's also very dangerouse.


In the fault distribution of pure electric passenger cars with lithium manganate power batteries, under-voltage alarm of single batteries is the main fault source, which accounts for 99.9% of the total fault of pure electric passenger cars with lithium manganate power batteries.


in a word, any safty related problem is big problem. let's treasure our lifes. take more consideration to battery quality affairs.