Analysis of power lithium batteries with normal lithium battery research and development design differences

Source: 2020 - 04 - 19 20:02 hits: power lithium batteries and normal lithium battery research and development design differences: 1, lithium iron phosphate power type lithium ion battery research and development design need more considering reliability and consistency, after all, it is a long time ( At least 5 ~ 10 years) , the environment, Low temperature in winter, the summer sun, rain and snow) , a large number of series-parallel group used batteries, considering reliability and consistency, think they are using 1000 power battery, ideally, manufacturers hope that 100000 car model according to the scale of the problem, not is the ideal requirements of power battery problem ( Security, storage, distribution, etc. ) Are more likely to be less than one over one hundred million ( Of course, for the most high-end consumption battery apple also requires its suppliers to this level. Considering the reliability, power battery is usually more redundancy design, have a thick film, foil and the shell, so their energy density is about half of the batteries. 2, the average consumer when lithium ion battery research and development design more need to consider the safety and durability, don't need long time reliability ( Cycle also do not need to do this, because it will be in a year or two years) , usually do not need to match group used alone, so not much consistency requirements, but as consumers of mobile phone, tablet cushion space is limited, very precious, so consumers to strictly the size of the lithium ion battery, high requirement of capacity and energy density. 3, the difference between lithium power battery and lithium battery for product safety, more external power battery protection circuit, heat dissipation layout and so on, of course, also face harsh conditions, External high voltage, high current, more complex external environment) , consumer protection, reduce the battery should be in a higher energy density of battery materials and design, on the basis of the security risks of resist; High-end consumer handset lithium battery using the most advanced technologies and materials, and power battery requires more advanced process control, the consistency control and quality management.