Working Principle of High-voltage stacked Lithium Battery
Product Parameters
| MODEL |
OMS-20K |
| Product |
204.8V 100AH |
| Dimension RACK(mm) |
600*400*835mm |
| Nominal Capacity (KWH) |
20.48 |
| Discharge Cut-Off Voltage (V) |
176 |
| Charge Cut-Off Voltage (V) |
227.2 |
| Max. Charge/Discharge working Current(A) |
120 |
| Working Temperature |
0ºC~50ºC Charge -10ºC ~51ºC Disharge |
| MODEL |
OMS-20K |
| Certification |
CE/IEC/UL/UN38.4/MSDS |
| Design Life |
15years+ |
| Cycle Life |
( 0.5C/0.5C-80% D0D )>6001 times |
| Series Function |
Support 17 units in Series |
| Certification |
UN38.4/MSDS/ROHS |
| Recommend Charge/Discharge Current (A) |
60 |
Our Advantages
-Higher Energy Density: The stacking process allows more active materials to be accommodated in a limited volume, enabling greater electrical energy storage per unit volume or weight, which directly enhances the endurance capability of devices.
- Better Charge-Discharge Performance: Its low internal resistance supports high-rate charging and discharging, achieving fast charging (e.g., 80% charge in 10-15 minutes) and instantaneous high-power output to meet the short-term high-power demands of devices.
- Enhanced Safety: The stacked structure reduces internal stress within the cells and ensures more uniform heat distribution. Combined with optimized separators and short-circuit prevention designs, it lowers safety risks such as thermal runaway and fire hazards.
- Flexible Adaptation to Diverse Form Factors: It can achieve ultra-thin and irregular designs by cutting electrode shapes, flexibly fitting special structural needs such as flat battery packs, foldable screen hinges, and curved spaces in wearable devices.
- Longer Cycle Life: The stacking process reduces the shedding of active materials and electrode deformation, maintaining high capacity even after thousands of charge-discharge cycles (typically retaining over 80% capacity after 2000 cycles), thus extending the service life of the battery.
- Compatibility with High-Capacity and High-Voltage Requirements: Through series/parallel combinations of multiple cells, it can easily achieve high-voltage output (e.g., 300-800V platforms for new energy vehicles) and large-capacity storage (e.g., over 100kWh for energy storage systems), meeting the needs of high-power devices.
usage scenarios
New Energy Vehicle Sector:New energy vehicles-especially battery electric vehicles and plug-in hybrid electric vehicles-have extremely high demands for battery energy density, fast-charging capability, and safety, making stacked lithium batteries the mainstream choice.
High-end Digital and Portable Devices:In the consumer electronics sector, where volume is limited but performance requirements are high, stacked lithium batteries are key to enhancing device user experience.
Energy Storage Systems and Backup Power Supplies:
In the field of energy storage and backup power supplies, the long cycle life and safety of stacked lithium batteries are of crucial importance.
Smart Wearables and IoT Devices:Miniaturization and customization of form factors are core requirements for smart wearable devices, and stacked lithium batteries have become the only viable solution.
Special-purpose Vehicles and Equipment:In specialized scenarios with extreme demands for power and safety, the advantages of stacked lithium batteries are particularly prominent.
Company Profile
Founded in 2000, Baode Lighting Group Co., Ltd. is a high-tech enterprise integrating R&D, design, manufacturing, engineering implementation and service operation of outdoor lighting equipment, solar street lamps, smart street lamps, high-mast lamps, steel pipe power towers, communication towers, traffic equipment, landscape lighting, photovoltaic intelligent applications, etc. With over 20 years of development, the group has won the "Mayor Quality Award" of Gaoyou City twice and is recognized as a "Demonstration Enterprise of Service-oriented Manufacturing" in Jiangsu Province. Baode has obtained more than 100 patents and scientific and technological achievements, including nearly 20 invention patents. It holds multiple professional qualifications, such as Grade I for urban and road lighting engineering, and has passed various system certifications like ISO9001, ISO14001, and ISO45001. Its "Luyou" brand has been awarded "Famous Trademark of Yangzhou" and "Famous Trademark of Jiangsu Province". The group has established long-term partnerships with over 30 companies, including China Railway Group and JinkoSolar, and its products are sold in more than 100 countries and regions. Committed to the corporate spirit of "integrity, hard work, and keeping pace with the times", Baode aims to become a better smart city lighting integration service provider.
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FAQ
1. What is a stacked lithium-ion battery? How does it differ from traditional wound lithium-ion batteries?
A stacked lithium-ion battery is a type of battery cell formed by layering positive electrodes, separators, and negative electrodes one by one (similar to a "sandwich" structure). The core difference from traditional wound lithium-ion batteries lies in the electrode assembly process:
- Stacked type: Electrodes are layered through a lamination process, allowing more flexible electrode shapes (square, irregular, etc.) and higher internal space utilization.
- Wound type: Electrodes are rolled into cylindrical or prismatic cells. While the technology is mature, electrodes require continuous cutting, resulting in slightly lower space utilization.
Additionally, stacked batteries offer better charge-discharge uniformity, making them more suitable for high-rate, large-capacity scenarios such as electric vehicles and energy storage devices.
2. What is the typical lifespan of stacked lithium-ion batteries? What factors affect their lifespan?
The cycle life of stacked lithium-ion batteries is usually over 1,000-3,000 cycles (depending on materials, craftsmanship, and usage conditions). Key factors affecting lifespan include:
- Charge-discharge conditions: Overcharging (exceeding rated voltage), deep discharge (remaining capacity below 20%), or high-rate fast charging can accelerate electrode aging.
- Operating temperature: Long-term use in high-temperature environments (above 45°C) or low-temperature environments (below -20°C) can cause electrolyte decomposition or lithium dendrite growth.
- Production process: Insufficient lamination alignment accuracy may lead to local current concentration, accelerating internal cell loss.
3. Are stacked lithium-ion batteries safer? How to avoid safety hazards?
Relatively speaking, stacked lithium-ion batteries offer better safety due to: The laminated structure distributes stress more evenly, and separators are less likely to wrinkle or tear due to winding tension, reducing short-circuit risks; additionally, square casings are easier to integrate safety devices such as explosion-proof valves.
To avoid safety hazards:
- Choose products from reputable manufacturers to ensure electrode alignment accuracy and separator quality;
- Use matching chargers to prevent overcharging and over-discharging;
- Avoid severe collisions,extrusion or storage in high-temperature environments.
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