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What is the maximum capacity of a 26650 lithium battery? The capacity of the 26650 lithium battery has always been a concern for battery cell designers. The 26650 lithium battery has a flat head, a nominal voltage of 3.2V, and belongs to the lithium iron phosphate 26650 battery cell. The battery is packaged with light green leather on the outside. Improving the capacity of IFR26650 lithium iron phosphate batteries is an unshirkable responsibility.

What is the maximum capacity of a 26650 lithium battery?

Before discussing the capacity of 26650 lithium batteries, let's first popularize a concept: firstly, the capacity of all lithium batteries is determined by their structure and material system, which means that different material systems have different capacities for the same lithium battery structure. The capacity of lithium batteries is influenced not only by the characteristics of the material itself, but also by the design and manufacturing conditions of the battery cells.

The charging capacity of different materials varies, and depending on their processability and compaction density, it can also affect the overall charging capacity of the final battery. From the current situation, battery raw material research and development capabilities are strong, and the automation level of the processing process is high. The capacitance and processing characteristics of the materials themselves are good, and the charging characteristics of the materials are relatively good.

So, what is the capacity of a 26650 lithium battery? Let's talk about two popular material systems in China at present.

1. Lithium iron phosphate material system

The 3.2V2500mAh battery cell is specifically designed for high current discharge, supporting 30C discharge and instantaneous 50C discharge, making it the preferred choice for various startup power sources.

The capacity of this 3.2V3500mAh battery cell is currently the largest in the market production and supply of the 26650 lithium iron phosphate system (as of December 31, 2016). According to the product roadmap of LiLang Battery, it is expected to launch a lithium iron phosphate 26650 battery cell with a capacity of 3800mAh in the second half of 2017.

2. Ternary (nickel cobalt manganese) material system

The 3.7V5000mAh 26650 lithium battery product is already quite mature, with excellent consistency and safety. The full cycle test life has reached 1500 times, with a cycle capacity retention rate of over 80%. It is one of the best products in the category of Chinese ternary 26650 lithium batteries and has passed mandatory testing for automotive batteries in China. It is in an absolute leading position in China and even surpasses Japanese and Korean lithium batteries in technical indicators such as product cycle performance.

The 3.7V5500mAh battery cell is an upgraded version of the 5000mAh lithium battery, with a leading capacity and various indicators in China.

The cylindrical IFR26650 lithium battery has multiple capacity ranges, including 3000mAh, 3200mAh, 3300mAh, 2500mAh, 3600mAh, etc. The nominal voltage of these 26650 lithium batteries is 3.2V, and the full charge voltage of a single 26650 iron phosphate lithium battery cell is 3.65V. The internal resistance of the batteries is within 20 milliohms.

The capacity of ternary INR26650 lithium batteries in the market is generally around 5000mAh, 5500mAh, and 6000mAh, but it belongs to the ternary system. The capacity of this type of 26650 lithium battery and the capacity of ternary 18650 lithium battery both increase according to volume, and the energy density can be basically made the same.

Battery Performance Analysis of 26650 Lithium Battery Capacity

Cycle performance: 2000 times (1C charging/1C discharging, capacity retention rate ≥ 80%, 100% DOD)

Maximum continuous discharge current: 9.6A

Pulse discharge current: 15A, 5s

Working temperature: Charging: 0 ° C~55 ° C; Discharge: -20 ° C~60 ° C

Storage temperature: -20 ° C~45 ° C

Battery weight: 86g (approximately)

The nominal voltage of nickel cobalt manganese ternary lithium ion 26650 per cell is generally 3.6V

Nominal capacity: 4500mAh (capacity range 4500-4650mAh)

When idle, the 26650 lithium battery can be placed in a cylindrical shape. Of course, the 26650 lithium battery can also be placed in any shape. As long as you can think of it, you can creatively place it in any shape.

For more lithium batteries and battery related products, please feel free to consult our online customer service.

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