Deligreen Power Co.,ltd
| Payment Terms | D/A, D/P, T/T,paypal |
| Supply Ability | 1000pcs/day |
| Delivery Time | 15 days |
| Packaging Details | carton box |
| Nominal voltage | 3.2V |
| Nominal capacity | 314AH |
| cycle life | 8000 times |
| Internal impedence | 0.18mΩ±0.05mΩ |
| MCC | 157A |
| MCDC | 157A |
| Net Weight | 5.6KG±0.3KG |
| size | 174*72*205mm |
| Brand Name | EVE |
| Model Number | 314Ah |
| Certification | CE/FCC/ROHS |
| Place of Origin | china |
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Product Specification
| Payment Terms | D/A, D/P, T/T,paypal | Supply Ability | 1000pcs/day |
| Delivery Time | 15 days | Packaging Details | carton box |
| Nominal voltage | 3.2V | Nominal capacity | 314AH |
| cycle life | 8000 times | Internal impedence | 0.18mΩ±0.05mΩ |
| MCC | 157A | MCDC | 157A |
| Net Weight | 5.6KG±0.3KG | size | 174*72*205mm |
| Brand Name | EVE | Model Number | 314Ah |
| Certification | CE/FCC/ROHS | Place of Origin | china |
Europe stock EVE MB31 314ah 330ah LiFePo4 Cell Lithium Battery VAT Custom Free
| Rated capacity | 314Ah |
| Rated voltage | 3.2V |
| Voltage range | 2.5V-3.65V |
| Cycle life | 10000 cycles,25 ℃ 70% SOH |
| Max charge current | 0.5C,157ah |
| Max discharge current | 0.5C,157ah |
| Initial internal resistance | 0.18mΩ±0.05mΩ |
| Weight | 5.6KG±0.3KG |
| size | 174*72*205mm |
| Discharging temperature | -30-60℃ |
This item is EVE Lifepo4 3.2V 314Ah item,QR code, Grade A+, Brand new.
Internal resistance
Stacking cells have lower internal resistance,winding cells have related higher IR.
Winding cell is usually a single pole ear, while a stacking cell can be seen as a multi pole ear, greatly reducing its internal resistance.
The different internal resistances result in different heat generation and capacity decay rates during the charging and discharging cycles
of finished batteries. It is evident that stacked batteries have slower capacity decay.
Cycle life
For stacking batteries, the internal temperature distribution is relatively uniform,Due to the unidirectional heat transfer between the electrode and the
separator, the temperature gradient distribution of the winding battery is relatively severe, resulting in high internal temperature and low external temperature.
Uneven temperature distribution leads to the deactivation of active substances at high temperature positions during the charging and discharging process of the
battery, which prevents the function of lithium ion deintercalation and affects the rapid decay at other positions, thereby affecting the performance of the battery.
The internal stress of the battery cell
The edge of a winding battery cell is where stress is concentrated. Based on past battery disassembly analysis experience, the bending of the electrode is more prone to
micro short circuits, electrical breakdown, and lithium deposition.The stress concentration point is the primary location for battery deactivation, which also leads to a decrease
in the cycle life of wound batteries.
Charging&Discharging rate
The stacking cell is equivalent to parallel connection of multiple electrodes, making it easier to complete high current discharge in a short period of time, which is beneficial for the rate
performance of the battery. The winding process, on the other hand, is exactly the opposite, with a single pole ear resulting in slightly poorer rate performance.
Battery capacity density
Stacking batteries have a higher capacity density because their internal space is more fully utilized.
The winding type battery has circular cells on both sides and the last two layers of membranes occupy a certain thickness, resulting in a lower capacity density.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Exporter,Trading Company,Seller
Year Established:
2010
Total Annual:
5 000 000-10 000 000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
Since 2010, we've been one of the largest wholesalers of rechargeable batteries. We solely focus on high - quality, grade A, brand - new batteries. Our range includes LiFePO4, LTO, Sodium, solid - state batteries, and other trending ones. Both cylindrical and prismat... Since 2010, we've been one of the largest wholesalers of rechargeable batteries. We solely focus on high - quality, grade A, brand - new batteries. Our range includes LiFePO4, LTO, Sodium, solid - state batteries, and other trending ones. Both cylindrical and prismat...
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