Successful Cases of Custom Sodium Ion Batteries Packs Solution
48V 30Ah Low-Temperature Sodium-Ion Battery Pack

Configuration: 16S2P (32x cylindrical 3.0V 15Ah sodium-ion cells)
Ingress protection: IP54
Charge temperature: -20°C to 60°C
Discharge temperature: -40°C to 60°C
Capacity retention at -40°C: 85.5-85.8% measured
48V 105Ah IP67 Waterproof Sodium-Ion Battery Pack

Configuration: 16S7P (112× cylindrical 40160 sodium-ion cells, 3.0V/15Ah each)
Max. continuous discharge: 50A across -40°C~+45°C
Communication: RS485, waterproof connector, BMS rated -40°C~+65°C
Cycle life: ≥2600 cycles @ ≥70% capacity retention
Custom Sodium-Ion Battery Packs FAQ
Can energy density match lithium iron phosphate (LFP) batteries?
Yes, by 2025, sodium-ion batteries will reach 160-180 Wh/kg. Industry leader CATL is set to achieve 175 Wh/kg in mass production. This is close to LFP batteries, which range from 180-200 Wh/kg. These batteries can power small EVs for over 250 miles per charge. Key improvements include layered oxide cathodes and soft/hard carbon composite anodes, enhancing stability and efficiency.
Do Sodium-Ion Batteries solve winter range loss?
Absolutely. Sodium-ion batteries keep 85-95% capacity at -20°C (-4°F), much better than lithium batteries, which only retain about 60%. Special high-concentration electrolytes with cold-weather solvents, like ethyl acetate, allow for 93% capacity even at -40°C.
Where are they being used?
Our They are quickly expanding in:
Grid storage (e.g., China’s Datang Qianjiang project)
EVs (CATL-powered cars are now on the roads)
E-bikes (Yadea models charge in 15 minutes at -20°C)
Will they replace lead-acid or lithium batteries?
Vs. lead-acid: Sodium-ion offers 2-3 times more energy and lasts 4-6 times longer, with lifetime costs 70% lower. They’re ideal for e-bikes and starter batteries.
Vs. lithium: These batteries serve as a complement – not a full replacement. They excel in cold climates, budget EVs, and large-scale storage due to their cost and safety benefits.
Tailored Customization
Our design team can create custom battery designs for just about any device or machine.
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