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Company news about What's the main advantages of 21700 li-ion battery?

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Mrs. Alice
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What's the main advantages of 21700 li-ion battery?

2025-07-01

The main advantages of 21700 li-ion battery:

 

High energy density, large capacity, long cycle life and stronger safety performance. It has become the preferred battery solution in the field of new energy and consumer electronics. ‌‌‌‌

 

‌Energy density and capacity advantages‌:

 

‌Energy density increased by 20%-35%‌: Using high-nickel ternary positive electrode (nickel content up to 90%) and silicon negative electrode materials, the energy density exceeds 300Wh/kg, which is at least 20% higher than the traditional 18650 battery. ‌‌‌‌

‌Single-cell capacity can reach 5000mAh‌: 

‌Better Performance and long cycle life:


‌Cycle life exceeds 1,000 times‌: With the use of automotive-grade BMS system and material process optimization, the capacity retention rate is still 90% after 500 cycles, and some models (such as the customized model of Cooltech) still maintain 80% capacity after 1,000 cycles. ‌‌

‌High-rate discharge support‌: Supports 3C-10C discharge rate (maximum 90A current), which can provide stable power supply for high-power equipment such as drones and power tools. ‌‌

‌Safety and cost optimization‌:


‌Automotive-grade safety design‌: Through steel shell packaging, flame-retardant materials and intelligent temperature control system, the risk of short-circuit spontaneous combustion is reduced by 60%, and it can pass rigorous tests such as overcharging and extrusion. ‌‌

‌System cost is reduced by 9%‌: Although the cost of a single battery cell is higher, the high-capacity characteristics reduce the number of battery cells required, the supporting management module is simplified, and the overall cost of the terminal product is significantly reduced.

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Home > News >

Company news about-What's the main advantages of 21700 li-ion battery?

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What's the main advantages of 21700 li-ion battery?

2025-07-01

The main advantages of 21700 li-ion battery:

 

High energy density, large capacity, long cycle life and stronger safety performance. It has become the preferred battery solution in the field of new energy and consumer electronics. ‌‌‌‌

 

‌Energy density and capacity advantages‌:

 

‌Energy density increased by 20%-35%‌: Using high-nickel ternary positive electrode (nickel content up to 90%) and silicon negative electrode materials, the energy density exceeds 300Wh/kg, which is at least 20% higher than the traditional 18650 battery. ‌‌‌‌

‌Single-cell capacity can reach 5000mAh‌: 

‌Better Performance and long cycle life:


‌Cycle life exceeds 1,000 times‌: With the use of automotive-grade BMS system and material process optimization, the capacity retention rate is still 90% after 500 cycles, and some models (such as the customized model of Cooltech) still maintain 80% capacity after 1,000 cycles. ‌‌

‌High-rate discharge support‌: Supports 3C-10C discharge rate (maximum 90A current), which can provide stable power supply for high-power equipment such as drones and power tools. ‌‌

‌Safety and cost optimization‌:


‌Automotive-grade safety design‌: Through steel shell packaging, flame-retardant materials and intelligent temperature control system, the risk of short-circuit spontaneous combustion is reduced by 60%, and it can pass rigorous tests such as overcharging and extrusion. ‌‌

‌System cost is reduced by 9%‌: Although the cost of a single battery cell is higher, the high-capacity characteristics reduce the number of battery cells required, the supporting management module is simplified, and the overall cost of the terminal product is significantly reduced.

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