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Lithium batteries are resistant to high temperatures inside vehicles. Here is a detailed introduction about lithium batteries: 1. Overview: Lithium batteries are lighter in weight, have relatively high energy density, good performance, and a wide range of applications. 2. Classification: There are two types of lithium batteries commonly used in pure electric vehicles, one is ternary lithium batteries, and the other is lithium iron phosphate batteries. 3. Lithium iron phosphate batteries vs ternary lithium batteries: The positive electrode of lithium iron phosphate batteries is made of lithium iron phosphate, which has a higher safety factor than ternary lithium batteries. However, the energy density of lithium iron phosphate batteries is lower than that of ternary lithium batteries, and their low-temperature performance is not necessarily better than that of ternary lithium batteries.