Скачать или смотреть 18650,21700,4680,Which battery would you choose?

Let me introduce you to the key advantages that BYD's 4680 batteries offer compared to the 18650 and 21700 battery formats:

Higher Energy Density
Due to the larger size of the 4680 cells, they are able to provide higher capacities. Compared to 18650 and 21700 batteries of the same volume, the 4680 batteries can achieve 20-30% higher energy density. This allows 4680 cells to store more energy within the same physical space.

Superior Power Density
The large dimensions of the 4680 design enable optimized internal electrode layouts, which helps reduce the battery's internal resistance. This gives the 4680 batteries exceptional power output capabilities, outperforming under high power demands.

Enhanced Safety
The larger volume of the 4680 cells means less heat is generated during internal short circuits, lowering safety risks. BYD has also adopted a safer lithium iron phosphate chemistry for the 4680 batteries, further enhancing their safety profile.

Manufacturing Cost Advantages
The bigger size of the 4680 cells leads to fewer manufacturing process steps, allowing for lower per-cell production costs. This benefits the overall cost control of the battery pack system.

Improved Thermal Management
The large 4680 battery size facilitates better thermal contact with external cooling systems, enhancing the overall thermal management performance. This is crucial for the reliability and lifespan of the battery pack.

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