-(2)What is a lithium iron phosphate battery? A simple understanding of lithium iron phosphate batteries

(2)What is a lithium iron phosphate battery? A simple understanding of lithium iron phosphate batteries
author:enerbyte source:本站 click368 Release date: 2023-09-05 14:08:43
abstract:
Seven Advantages 1. Improvement of safety performance The P-O bond in lithium iron phosphate crystals is stable and difficult to decompose. Even at high temperatures or overcharging, it will not collapse and generate heat or form strong oxidizing substance...

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Seven Advantages

1. Improvement of safety performance

The P-O bond in lithium iron phosphate crystals is stable and difficult to decompose. Even at high temperatures or overcharging, it will not collapse and generate heat or form strong oxidizing substances like lithium cobalt oxide, thus possessing good safety. Reports have pointed out that in actual operations, a small number of samples were found to have combustion phenomena during needle puncture or short-circuit experiments, but no explosion event occurred. However, in overcharging experiments, high voltage charging was used that greatly exceeded its own discharge voltage several times, and it was found that there was still an explosion phenomenon. Nevertheless, its overcharging safety has been greatly improved compared to ordinary liquid electrolyte lithium cobalt ion batteries.

2. Improvement in lifespan

The cycle life of long-life lead-acid batteries is around 300 times, with a maximum of 500 times. However, lithium iron phosphate power batteries have a cycle life of over 2000 times and can be used up to 2000 times with standard charging (5 hour rate). A lead-acid battery of the same quality can last for six months, including new and old ones, and maintenance for another six months, with a maximum time of 1-1.5 years. However, when used under the same conditions, lithium iron phosphate batteries have a theoretical lifespan of 7-8 years. Overall, the performance price ratio is more than 4 times that of lead-acid batteries in theory. High current discharge can quickly charge and discharge at a high current of 2C. With a dedicated charger, the battery can be fully charged within 40 minutes of charging at 1.5C, and the starting current can reach 2C. However, lead-acid batteries do not have this performance.

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