What is a High Discharge Battery?
The high discharge rate is representative of the charge and discharge capability of the lithium battery with respect to the ordinary rate. The high-rate battery is divided into a discharge rate and a charge rate, and “C” is used to indicate the ratio of the charge and discharge current of the battery, that is the rate. For example, a 1200 mAh battery, 0.2 C means 240 mA (0.2 mA of the 1200 mAh battery), and 1 C means 1200 mA (1 times rate of the 1200 mAh battery). Normally high discharge rate batteries can be fast charged. However, since lithium ions are embedded in the negative electrode graphite during charging, the process of inserting lithium ions into the positive electrode during the discharge process is difficult, so the fast charge rate is generally lower than the discharge rate.
What is Grepow High Discharge Battery?
Name:Grepow High Discharge Rechargable Li-ion Batteries Cell Type:Pouch cell Dimension:Tailored made shape and size
LiPO
Standard Voltage:3.7V
Charging Temperature:10℃~45℃
Discharge Temperature:–20℃~80℃
Storage Temperature:10℃~45℃
Promised Life Span:300 cycles
Rate of Quick Charge:5C (80% of full charge in 12 minutes)
Continuous Discharge:45C
Discharge for 2 seconds:90C
Pulse Discharge:150C
% of 1C Capacity:97%
(* The discharge capacity is less than 80% of the initial capacity)
LiFePO4
Standard Voltage:3.2V
Charging Temperature:10℃~45℃
Discharge Temperature:-20℃~60℃
Storage Temperature:10℃~45℃
Promised Life Span:1500 cycles
Continuous Discharge:40C
Discharge for 2 seconds:80C
Pulse Discharge:150C
% of 1C Capacity:95%
(* The discharge capacity is less than 80% of the initial capacity)
Performance Specification
Compare With Normal Battery
Normal Battery VS High C Rate Battery
Due to the high-rate battery use the electrode material which is favorable for high-rate discharge, the internal resistance design of the electrode is smaller than that of the ordinary battery, so the rate battery have high discharge platform, high discharge efficiency, and high output power and energy.
Fast Charge Curve
Fast charging battery
3C full only takes 25min, ordinary lithium battery 1C charging takes more than 80min, as fast charge curve, the charging time can save more than 60%.
LiPO
High Discharge Rate LiPo Battery vs. Normal Battery
Cycle Life Testing Curve (1C Charging)
LiFePO4
Different C Rate Discharge Curve (Nominal Capacity: 1600mAh)
The testing battery nominal capacity is 1600mAh, from the discharge curve under different discharge C rate, we can find the 25C performance is the best, but from 30C to 40C discharge rate, the Grepow LiFePO4 high C rate battery still can provide more than 93% discharge efficiency.
Cycle Life Testing Curve (1C Charging)
Under charging at 1C and discharging at 25C, the high C rate LiFePO4 battery performs an outstanding cycle life performance. From the sheet, we can know there have more than 94% capacity retention rate after 300 cycles.
Cell Disassembly
Advantages:
- High performance in power, discharge, and life cycles due to stacking process.
- Ability to achieve 150C pulse, 90C discharge for 2seconds, 45C continuous discharge, and 5C fast charging.
- Provides better temperature stability and tolerance due to the allowance of higher discharge rate.
- Ultra-thin characteristics, light weight, flexible size, flexible shapes, and ability to accommodate many applications.
- With ultra-thin characteristics, small size, extremely light weight, High discharge rate lithium polymer can be made into a variety of shapes and capacities of shaped batteries, thickness can reach 0.45mm;
Why you need High Discharge Rate Battery?
If the ordinary battery is fast charged, it is easy to cause lithium stripping of the negative electrode, which leads to an accelerated deterioration of the battery performance. In severe cases, the internal short circuit leads a fire explosion of the battery may occur. Most consumer applications require only 1C of battery, you should choose high discharge battery that if you need higher discharge rates and faster charging times. With the development of various industries, the demand for higher discharge and faster-charging requirements for batteries is increasing constantly.
At present, high-rate batteries are widely used in aerial drones, agricultural plant protection drones, emergency start power supplies, model aircraft, power tools and etc.
High Discharge Cell Applications
GREPOW’s high discharge cell for RC Hobby, Power Tools, Electric Racing Motorcycle, Electric Paramotor, Formula Student Car, Electric Skateboard, Power Sports Starting Battery, Jump Starter, Portable Power Station etc. Our R&D team works closely with clients to provide the best solution for their batteries.
Why you need High Discharge Rate Battery?
Grepow high discharge rate pouch cell is currently the best and commonly utilized for car jump starter. We offer jump starter OEM/ODM solutions as well as custom LiPo/LiFePO4 cells for Jump Starter.
Grepow Jump Starters are ultra-compact, yet powerful devices with the power of lithium technology. Pound for pound, lithium provides extreme energy output at a fraction of the size. And coupled with high-end electronics and design, it produces safe and efficient performance.
Portable lithium battery jump starter packs up to 2,000A. Powerful battery booster jump box for jump starting cars, boats, motorcycles and more.
Grepow High Discharge battery for Hyperloop High-Speed Rail
Swissloop
First Run-up – Hyperloop Pod super high-speed rail competition
High Discharge LiPo Pouch Cells
High Discharge LiPo Pouch Cells
