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15
2024-05
Our super 100Ah cells have achieved significant performance improvements!
Recently, our 100Ah battery cells have achieved breakthroughs in charge/discharge rate and low-temperature performance. In terms of charging and discharging rate, the original 1C/3C 3000 cycles have been increased to the current 3C/3C 3000 cycles. The maximum charge discharge rate has been increased from 3C/4C to 4C/6C！It can still discharge 80% of its power in an environment of -30℃, this makes it very suitable for use in high latitude areas without the need for additional heating systems,。 It is also suitable for battery systems on hydrogen fuel cells, power sources for hybrid trucks, peak shaving energy storage systems, go karts, and other fields that have mandatory requirements for high magnification, high power, and ultra-low temperature.As a professional provider of energy storage systems and power battery systems, Bepower has a technical team with over ten years of experience in lithium battery technology, leading technology routes, and project implementation experience. For many years, Bepower's products have mainly focused on power and energy storage.
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08
2024-05
Eight major differences between air cooling and liquid cooling in energy storage systems
1.Different cooling principlesAir cooling is the process of removing heat through the flow of air, which lowers the surface temperature of the equipment. The advantages of air-cooled heat dissipation are simple structure and low cost, but its heat dissipation effect is greatly affected by factors such as environmental temperature and air circulation, and is not suitable for high-power and high-density equipment. Liquid cooling heat dissipation is the process of removing heat through liquid circulation, which lowers the internal temperature of the equipment. The advantages of liquid cooling are good heat dissipation effect and high stability, but its cost is high and it requires maintenance of the liquid circulation system.2. Different applicable scenarios Air cooling systems are suitable for energy storage systems of various scales and types, especially in outdoor environments with better applicability. It is currently the most widely used cooling technology, applied in industrial refrigeration, communication base stations, data centers, temperature control scenarios, etc., with relatively high technological maturity and reliability. Especially in low to medium power scenarios, air cooling remains the mainstream. Liquid cooling systems are also suitable for various scales and types of energy storage systems, especially for large-scale, high energy density energy storage projects. The advantages of battery packs are particularly evident in situations with high energy density, fast charging and discharging speeds, and large environmental temperature changes. 3. Different design complexityThe design of air-cooled energy storage systems is relatively simple, mainly involving the installation of heat dissipation fans and the design of air circulation paths. The core of air-cooled systems is the air conditioning and air ducts, which are used for cooling and exchanging heat; Liquid cooling design is usually more complex and requires consideration of issues such as the layout of the liquid circulation system, pump selection, coolant circulation, and maintenance. 4. Different heat dissipation effectsThe heat dissipation effect of air-cooled cooling is greatly affected by factors such as environmental temperature and air circulation, and generally cannot meet the heat dissipation needs of high-power equipment. The cooling effect of liquid cooling is better, which can effectively reduce the internal temperature of the equipment, improve the stability and lifespan of the equipment. 5. Different operating power consumptionThe composition of power consumption is different, and the main power consumption of air cooling is air conditioning+electrical compartment fan; The main power consumption of liquid cooling is the combination of liquid cooling units and electrical compartment fans (some manufacturers use whole machine liquid cooling). Under the same conditions and maintaining the same temperature, the power consumption of air cooling is higher than that of liquid cooling. 6. Different costs and maintenanceThe cost of air-cooled heat dissipation is relatively low and maintenance is simple. However, due to its limited heat dissipation effect, it may be necessary to increase the number of heat sinks or increase the fan speed to improve the heat dissipation effect, thereby increasing energy consumption and maintenance costs. The cost of liquid cooling is relatively high and requires maintenance of the liquid circulation system. However, due to its good heat dissipation effect and high stability, it can reduce equipment failure rate and maintenance costs. In the long run, its overall cost may be lower than that of air-cooled heat dissipation. 7. Different levels of noise and space occupancyThe noise generated by air-cooled cooling is relatively low and has a relatively small impact on the environment. But due to the need to install fans and heat sinks, it may take up some space. The noise generated by liquid cooling is relatively high and has a certain impact on the environment. However, due to its small radiator volume, it can effectively save space. In addition, liquid cooling can also reduce the impact of noise on the environment by optimizing the design and layout of the radiator. 8. Different safety and risk pointsThe safety of air-cooled heat dissipation is relatively high due to its simple structure and no risk of liquid leakage. But it is necessary to pay attention to the safety issues of the fan to prevent damage or overheating.The safety of liquid cooling is relatively low, and there are risks such as liquid leakage and corrosion. Therefore, the liquid cooling cooling system needs to use high-quality materials and strict sealing design to ensure safe operation. ConclusionAir cooling and liquid cooling are two commonly used heat dissipation methods in energy storage systems, each with its own advantages and disadvantages. When choosing a cooling method, it is necessary to comprehensively consider factors such as the actual power of the equipment, cooling requirements, and cost budget. With the development of technology, more efficient and low-cost new heat dissipation methods (such as the combination of air cooling and liquid cooling, immersion, etc.) may emerge in the future to provide guarantees for the stable operation of energy storage systems.
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23
2024-04
Multiple LFP marine batteries have obtained CCS certification.
Recently, multiple types of lithium iron phosphate marine batteries have successfully passed the type approval by CCS China Classification Society, and have been awarded the type approval certificate by CCS China Classification Society. This marks a new stage of industrial application for the company's multiple LFP marine batteries in the shipbuilding industry.CCS China Classification Society is one of the world's eight major classification societies and an official member of the International Association of Classification Societies. It is the only authoritative professional organization in China engaged in ship classification inspection business. CCS certification standards are comprehensive and strict, serving as the official passport for enterprises to enter the shipbuilding industry, offshore facilities, and related industries, with high professionalism and authority. Our marine lithium iron phosphate batteries, including 280Ah, 150Ah, 105Ah, 100Ah, 85Ah, and other products, meet international market standards in terms of performance stability, safety, and environmental adaptability, and can be used in the global shipbuilding market.Bepower Energy is always committed to creating high-quality lithium battery power system products that are extremely safe and reliable in performance, bringing the best product application experience to the green shipping industry and promoting the high-quality development of the new energy electric shipping industry. Promoting zero carbon shipping is a consensus for the future development of the global shipping industry. "Green ships" represented by battery powered ships are the current and future main research and application promotion directions. Bepower will fully leverage its technological and product advantages in the field of batteries, provide safe, reliable, and efficient battery product solutions for green shipping, and use clean energy ships to help promote green and sustainable development in society.
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12
2024-04
Sodium ion batteries are advancing！
Currently, global energy and transportation transformation is entering deep waters, and exploring diversified battery systems has become a consensus in the industry. In the new energy competition, sodium ion batteries are becoming an important technological route after lithium-ion batteries.The standards for sodium batteries are gradually improving; The application side, such as energy storage, has achieved a certain shipment volume; the battery positive electrode material route focused on layered oxides in the first half of last year, and from the second half of the year, polyanion materials began to be laid out. As sodium battery technology continues to advance, its application areas are gradually expanding. At present, sodium batteries have been widely used in energy storage, electric vehicles and other fields. Our sodium batteries : In layered oxide systems, the energy density has surpassed 150Wh/kg with a cycle life of over 3000 cycles. In polyanion systems, a cycle life of over 6000 cycles have been achieved. Our sodiumion batteries have entered the commercialization stage in China. Currently, we have two sodium batteries to choose from, 150Ah and 3.05Ah
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29
2024-03
Winning the bid for commercial energy storage systems of 200Mwh！
On March 25th, the announcement of the winning bidder for the 2024 User Side Energy Storage Equipment Framework Agreement Procurement of one China leading Water Resources and Electric Power (Group) officially released. Our 215kWH and 232kWh successfully won the bid with its high safety, long cycle, high-energy efficiency energy storage products, intelligent operation and maintenance solutions, as well as comprehensive service and after-sales capabilities! Our Industrial and commercial outdoor energy storage cabinet products with a total scale of 200MWh will be supplied! That's about 1000 units 215kWH C&I energy storage systems. With policy promotion and market demand growth, energy storage as an independent market entity participating in the electricity market will usher in unprecedented development opportunities. In 2023, we seized the opportunity in the energy storage market and entered the industrial and commercial energy storage track as a "product expert" and launched our 215/232Kwh liquid cooling industrial and commercial energy storage solutions, including the outdoor energy storage cabinet, energy storage container, Great E smart cloud platform, etc., which have been gained high trust from customers and impressive market results!
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26
2024-03
Still Concern about the ROI?
Lithium-ion has a higher upfront cost, but can have a dramatic effect on the bottom line overtime.Our analysis of customer usage shows that lithium batteries save nearly 50% of the total cost per forklift compared to lead-acid batteries!Benefits by Li-ion system:√ Zero maintenance√ Lifespan increased 3 to 4 times√ Efficiency raised 30 to 50%
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14
2024-03
Xinjiang Jiashi 600MWh grid connected! Refresh the record for the largest single scale photovoltaic storage project of PetroChina
On January 26th, the 600000 kilowatt photovoltaic power generation project and 150MW/600MWh supporting energy storage system constructed by PetroChina Tarim Oilfield in Kashi County, Xinjiang were successfully connected to the grid in one go! The 600000 kilowatt photovoltaic storage project in Tarim Oilfield is located in the barren desert area near Kezileboyi Township in Kashi County. It is the first desert power station in the region and a key project for the development of China Petroleum's new energy business. At the same time, it is also an important component of the layout of the Xinjiang Uyghur Autonomous Region to build a clean energy base with a capacity of tens of millions of kilowatts in southern Xinjiang!According to calculations, the 600000 kilowatt solar energy storage project in Jiashi County, Tarim Oilfield, China has an annual power generation of 1.04 billion kilowatt hours, which can meet the needs of 440000 households for one year, equivalent to replacing 312000 tons of standard coal, reducing 812000 tons of carbon dioxide emissions, 498 tons of sulfur dioxide emissions, and 456 tons of nitrogen oxides annually! Overall, it will help the Tarim Oilfield achieve an 8.1% increase in clean energy utilization and a 35% reduction in carbon reduction intensity, which is of great significance for ecological environment protection and regional economic development in Kashgar region. The 150MW/600MWh ultra large electrochemical energy storage power station, built in conjunction with the 600000 kilowatt photovoltaic power generation project, is a high-quality battery energy storage system integrated by China Petroleum Jichai Power Co., Ltd. The scale of this energy storage power station is among the top in China. After operation, it realizes valley time charging and energy storage, peak time discharge and peak regulation, which not only improves the stability and reliability of the power system, but also assists in peak shaving and valley filling of the power grid, energy conservation and efficiency enhancement, making the power supply in the surrounding areas of Kashgar cleaner, more economical, and efficient! As a professional provider of energy storage systems and power battery systems, Bepower has a technical team with over ten years of experience in lithium battery technology, leading technology routes, and project implementation experience. For many years, Bepower's products have mainly focused on power and energy storage. Mainstream power battery products include 72V battery systems suitable for light vehicles and UTVs, and 24V battery systems suitable for sweepers and lawn movers. Energy storage products include module/cluster/container ESS and have TUV IEC62619, UL1642, UL1973 certifications, with application in 50+countries/areas. In the future, Bepower will focus on the national "dual carbon" goals, promote green development, and balance economic, social, and environmental benefits!
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28
2024-02
Analysis of The top 7 Misunderstandings About Light EV And Lithium-ion Batteries
With the continuous highlighting of global environmental issues and the diversification of people's travel methods, new energy vehicles are gradually attracting people's attention and pursuit.However, there are still many misunderstandings about light EV and lithium batteries.1. The battery aging is too fast and cannot be processed.For traditional fuel powered vehicles, as long as the engine, transmission, and steering functions can operate normally, the vehicle can continue to operate. But for pure electric vehicles, after reaching the number of charging and discharging cycles, the performance of the battery will deteriorate, making it difficult to reach the level of normal use.However, currently many pure electric vehicle manufacturers have implemented a policy of 3-year or 5-year buyback. If the service life of the battery exceeds its limit at a certain stage, it will also be recycled and reused. 2. Electric vehicles are unsafe and prone to catching fire.Carl, Vice President of the German Fire Protection Association, believes that "the degree of combustion in electric vehicles is not more severe or frequent than in gasoline or diesel vehicles, it is just different." ADAC's testing once again proves that the risk of electric vehicle ignition is as low as that of internal combustion engine vehicles.The German Fire Protection Association wrote in its current recommendation: "Certified electric vehicles have a significant fire risk compared to vehicles with other power systems (fuel propulsion)." Overfire tests also indicate that regardless of the type of power system, vehicles of the same size and type have similar combustion performance. In case of fire, the battery can also be extinguished with water.3. Lithium-ion batteries are very expensive.It’s imperative to think about long-term costs. Although lithium-ion batteries have a higher initial purchase price than lead-acid batteries, their cost per cycle is lower due to their longer lifespan, making them the most cost-effective solution in the long run.Bepower's lithium-ion batteries have extremely low internal resistance and the most efficient technology, which means less grid energy is wasted and saves 30% (charging and CO2 emissions) compared to lead-acid batteries. In the long run, with the decline of lithium carbonate, now comparing the prices of lithium-ion batteries and lead-acid batteries, purchasing a lithium battery with the same capacity only costs 1.5 times that of a lead-acid battery. Lithium batteries are cheaper in the long run. 4. The cost of repairing and maintaining light EV is very high.Electric vehicles have lower maintenance costs, do not require regular adjustments or oil changes, and require fewer parts to be replaced and maintained. Generally speaking, electric vehicle maintenance only requires testing of the three electrical components, chassis, and lighting; For major maintenance, in addition to minor maintenance projects, replacing the air conditioning filter and replacing steering fluid, transmission oil, coolant, and brake fluid every two years or 40000 kilometers are also included. The price depends on the model, usually up to two to three hundred yuan. Of course, if it is a high-end model like Tesla, it will cost thousands of yuan, which is much cheaper than gasoline cars. 5. Lithium-ion batteries are not as stable as lead-acid batteries.Lithium-ion batteries are safer than traditional lead-acid batteries. Although the energy density is higher than that of lead-acid batteries, Bepower lithium-ion batteries have multi-level safety systems such as cells, modules, and casings, as well as a battery management system (BMS) with comprehensive protection functions. BMS protects against overload, overcharge, deep discharge, and overcurrent.6. Light EV has poor power performance.With the gradual standardization of the pure electric vehicle market, the inferior products that used to ride the dividends have been eliminated by the market. The performance of pure electric vehicles nowadays is incomparable to fuel powered models in the same price range. For example, models such as GAC Trumpchi Aion LX, BYD Tang EV, Tengshi X, and Tesla Model have achieved or even surpassed performance cars in the same price range. Even for entry-level compact pure electric vehicles priced at over 100000 yuan, their electric motor power can be comparable to some mainstream 2.0T low-power engines, and with the fast response characteristics of the electric motor, the actual driving pleasure is even better than them. 7. Lithium-ion batteries are not suitable for harsh environments.Through extensive testing, we have found that lithium-ion batteries perform better than lead-acid batteries in rough surface environments, high-usage environments, low temperatures, and most other environments where lead-acid batteries have difficulty or simply fail to perform. Depending on the application and use, lithium-ion batteries are available. Since the permissible operating and charging temperatures depend on each specific lithium battery pack, Bepower provides data sheets and user manuals specifying the exact operating conditions for each battery.
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05
2024-01
Great Power's first batch of 314Ah battery cells has been successfully produced globally.
With the popularization of renewable energy and the rapid development of distributed energy systems, energy storage technology is increasingly receiving global attention. According to data from GGII, the penetration rate of 280Ah battery products in China's power storage projects has exceeded 80% in 2022. In the second half of 2023, most energy storage companies will launch high-capacity battery cells with a capacity of 300+Ah or more, and achieve mass production and delivery, officially launching a race for high-capacity battery cells. However, Ouyang Minggao, an academician of the CAS Member, mentioned that the 300+Ah high-capacity lithium iron phosphate energy storage cell has certain hidden dangers in intrinsic safety. The safety accidents of energy storage power stations that occurred in many parts of the world this year have once again attracted people's attention. In the field of energy storage, the safety performance of battery cells has become the foundation of all performance. Great Power's 314Ah large energy storage cell, with its outstanding safety technology innovation, has set a new safety benchmark for the energy storage industry. This 314Ah large storage battery cell has excellent safety performance and has passed more than 20 safety regulations tests such as needle puncture, thermal runaway, impact, and injection. Moreover, it does not experience thermal runaway even under overcharge conditions. This 314Ah large storage battery cell has a stable system, safe and reliable quality, and meets certification requirements such as UL1943, UL9540A, IEC62619, UN38.3, ROHS&REACH, etc. In terms of materials, advanced nano coating technology is also adopted, greatly improving the strength of the electrode and separator, ensuring the stability of the battery. In addition, the realization of in-situ gel of electrolyte makes the 314Ah large storage core form a safe and stable interface between the positive and negative electrodes and electrolyte, effectively avoiding the occurrence of thermal runaway. The mass production of Great Power's 314Ah large storage battery cells has further promoted the development and application of 300Ah+large capacity battery cells in the industry, providing better battery cell solutions for large-scale energy storage scenarios.
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30
2023-11
With our 150Ah LFP battery system, Third generation Wuling Hongguang MINIEV Macaron model with upgraded range and support for DC fast charging
On November 14th, the latest facelift of the Wuling Hongguang MINI EV - the third-generation macaron - was officially launched. The exterior design and cabin interior of the third-generation Macaron of the Hongguang MINIEV have been fully refreshed. On the basis of the original 120km and 170km range versions, this model has added a 215km long range version, with an average range of 12.4km per hour and a power consumption of 9kW · h per 100 kilometers. The newly added 215km long endurance version supports DC fast charging, which can charge from 30% to 80% in 35 minutes. In addition, the power of slow charging for communication has also been improved. The 215km long endurance version of the AC pile has a charging power of 3.3kW, which takes 5 hours to charge from 20% to 100%. The on-board charging gun can be matched with a 220V household socket power supply without the need for conversion. This can greatly improve the efficiency of charging MINI EV. The Wuling Hongguang MINI EV series uses our 150Ah LFP battery pack. The charging and discharging efficiency of lithium iron phosphate batteries is usually above 90%, which can be perfectly matched with the newly added fast charging function. Our Lifepo4 battery are currently widely used in the field of electric vehicles, especially in light vehicles, nearby vehicles, utility vehicle cases, UTV, sweeper and so on. We are proud to contribute our efforts in the field of clean energy. Lithium iron phosphate batteries do not contain any heavy metals or rare metals, are non-toxic, pollution-free, and comply with regulations. They are absolutely green and environmentally friendly batteries. Lead acid batteries contain a large amount of lead, which, if not properly disposed of after disposal, will cause secondary pollution to the environment. Lithium iron phosphate materials are pollution-free in both production and use.
