Brief analysis of acceleration factor standards for lithium iron phosphate batteries

Lithium iron phosphate battery acceleration coefficient standard 'Lithium iron phosphate battery accelerated cycle life and acceleration factor selection test' specifications began to solicit opinions? Is this a good thing or a bad thing? It's really hard to say. Lithium iron phosphate battery acceleration coefficient specification I heard that the standard method includes the accelerated cycle life test method of lithium iron phosphate battery and the accelerated cycle life selection test of lithium iron phosphate battery. Lithium iron phosphate batteries will continue to exist for a long time in the future, but in many product applications have been replaced by ternary lithium batteries, we hope to do a good job in the reliability evaluation of lithium batteries, it is better Deal with the two most mainstream battery types at once? However, even for lithium iron phosphate batteries, the chemical composition of different companies will be different. As for this difference, can you choose a general acceleration factor? This is usually difficult to say, or very It is difficult to determine, because it is impossible to cover all chemical substances in one specification. Firstly, it is too much work, and secondly, it is impossible to predict future chemicals. The accelerated cycle test can be carried out under certain conditions, such as full discharge, charge current, and discharge current. I have previously shared a case of lithium battery charge and discharge cycles. The trend of capacity decline is not linear. If it is only accelerated, it is likely to get wrong results. As far as I know, some people in the industry choose the Arrhenius model to speed things up, and I have a mindset of preservation. In addition, the charging and discharging current and charging voltage are the only things that can be adjusted, so at present I have not found a more complicated lithium battery speed model. Generally speaking, I want to reserve whether this matter can be completed and wait for the specification to be announced to learn. If someone wants to participate, they can check their contact information to communicate, but it is best not to participate in such things. I think it still lacks preliminary systematic research. The original intention is good, and there may not be good results, but no matter how it is, it will be tried, and there will be rewards in the end. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete.