Nowadays, the industry trend of energy storage systems has a clear trend, one is the high voltage of the battery packs, and the other is the large capacity of the battery cells. Among them, large-capacity battery cells can greatly improve the energy density of energy storage systems, which is one of the important trends in system development and selection, and the most prominent one is the 280Ah LFP battery cell. So, what are the advantages of 280Ah LFP battery cells in energy storage systems? Reducing the parallel number of battery cells, thereby reducing the use of components at the module and pack ends, has a natural cost advantage; in addition, it also has a higher volumetric energy density. The large capacity of 280Ah can support longer-duration energy storage systems. The reduction in the number of battery cells in the energy storage system makes BMS management easier, cell management and technology simpler, and integration costs lower. The use of large-capacity cells in the field of back-end integration has a high degree of simplification of the assembly process, which can greatly save the cost of land infrastructure and containers.     Of course, in addition to the advantages, there are also some disadvantages. The increase in the volume and capacity of the battery cell leads to the deterioration of the heat dissipation performance of the battery cell itself, and the difficulty of the consistency control of the energy storage system. The battery cell bulging problem is more obvious than in past models. The production efficiency of 280Ah cells is relatively low. The production line efficiency of top cell manufacturers is 6~11PPM, which is much lower than that of 50Ah and 100Ah cells. In terms of production process, 280Ah battery cells mainly have two processes: electrode stacking and electrode winding. The advantages of the electrode winding process lie in a high degree of automation and high production efficiency. The 280Ah cell produced by the electrode winding process has poor consistency, and the mechanical stress of the cell and the increase in thickness have problems such as C angle. The consistency test of 280Ah LFP battery cells can be done with a prismatic cell sorting machine. The battery produced by the electrode stacking process has better product consistency and higher cycle life due to the larger electrode contact surface and no mechanical stress and C angle. The disadvantages of the battery stacking process mainly include electrode burr removal and low efficiency, and the yield rate is not as good as that of the winding process. Partial List of 280Ah LFP Battery Cell Manufacturers NO. Manufacturers 1 CATL 2 EVE 3 REPT 4 Hithium 5 LISHEN 6 GOTION HIGH-TECH 7 GREAT POWER 8 CALB 9 NARADA POWER 10 CORNEX 11 HIGEE WinAck Group can provide ESS battery system manufacturing solutions such as battery module assembly line and battery test equipment. Come by, contact us for a solution that can help you succeed. For better bat...

The portable power station is a built-in high-energy-density lithium-ion battery system that can provide a power supply system with stable AC/DC voltage output, which can be used in outdoor travel, emergency disaster preparedness and other scenarios. Compared with traditional small fuel-fired generators, portable power stations have the advantages of safety, portability, environmental friendliness, no noise, and easy operation. They can be widely used in outdoor leisure, work, rescue and disaster relief and emergency backup. In recent years, the overall demand environment for the outdoor portable power station market has been good. The main reasons are as follows: 1) Due to the impact of COVID-19, outdoor leisure time has increased significantly in regions such as Europe and North America, resulting in increasing demand for outdoor electricity. 2) The large proportion of wind and solar power grids has affected the stability of power supply, and emergency backup power station has gradually become an important backup in the lives of families in the United States, Japan and South Korea. 3) The emergence of portable power stations fills the market gap of mobile power banks and fuel engines: the charging capacity of conventional mobile power banks on the market is below 0.4KWh, and the charging capacity of mainstream fuel generators is above 3KWh. For outdoor leisure activities, field work, and small emergency backup power for families, the power supply of 0.5~2KWh has been blank for a long time, and it is just filled by portable power stations. In this context, the demand for portable power stations has continued to grow rapidly in the past three years. In 2021, the global shipment of portable power stations is about 2.9 million units. The market will still grow rapidly, with global shipments expected to reach 19 million units by 2025. From the perspective of the competition pattern, the current market concentration of portable power stations is relatively high, mainly because the market pattern has not been fully opened. The leading companies mainly include Hello-Tech, EcoFlow, and Goal Zero. These companies are rapidly expanding their market shares by virtue of their advantages in sales channels and supply chains. At the same time, Huawei, Xiaomi and companies that used to operate UPS power supplies and mobile power banks are also gearing up to increase the development of the portable power station market. Lithium-ion batteries account for the highest cost of portable power stations, and are also a key factor in determining the service life and cost reduction speed of portable power stations. The proportion of lithium-ion batteries in the overall cost of portable power stations is between 50% and 70%. In 2021, the global lithium-ion batteries for portable power stations will be about 1.45GWh. In 2025, the global demand for lithium-ion batteries for portable power stations is expected to exceed 15GWh. There are three core drivers for the continued g...

Currently, the market for residential energy storage systems is mainly concentrated in Europe, North America, Australia and South Africa. In terms of battery cell selection, since the system providers of early residential energy storage systems are mostly local companies in Europe, North America, Japan and South Korea, their supporting battery cells are dominated by Japanese and South Korean ternary battery systems such as LG, Panasonic, and Samsung. With the strong entry of Chinese battery manufacturers and the unanimous choice of the technical route of LFP cells, the battery cell matching pattern of residential energy storage systems is being reversed. In 2021, lithium battery shipments for residential energy storage systems in China reach 5.5GWh, a year-on-year increase of 83%. The market development of residential energy storage systems in China has the following characteristics: 1) There is little domestic demand for residential energy storage systems in China, and more than 90% of the products are exported. 2) Compared with grid energy storage systems and telecom energy storage systems, there are fewer Chinese companies engaged in lithium batteries for residential energy storage systems. There are relatively few manufacturers involved in residential energy storage systems, but the requirements are high, especially involving many certifications, and the gross profit margin of their products is as high as 30%. 3) The residential energy storage system market is dominated by consumers, and the ability to develop brands and channels is the core competitiveness of enterprises. The shipments of battery cell manufacturers for residential energy storage systems in China in 2021 are ranked in the following table. NO. Battery Cell Manufacturer 1 PYLONTECH 2 ATL 3 BYD 4 EVE Energy 5 Ruipu Energy 6 Great Power   PYLONTECH focuses on the South African, EU and Australian markets. In 2021, PYLONTECH 's energy storage products will sell 1.54GWh in total, an increase of 111.96% compared with 2020. ATL is the world's largest manufacturer of 3C digital lithium batteries. In 2019, ATL established a subsidiary, Poweramp, and began to enter the field of residential energy storage. Relying on ATL's LFP battery technology, Poweramp can provide a complete set of products including cells, modules, battery systems, etc. for residential energy storage, telecom backup power, industrial and commercial energy storage and other customers. BYD is deeply involved in the UK and EU markets. BYD's energy storage products are system-wide products, and its three core materials (cells, PCS and BMS) are developed and produced by itself, and sold through terminal channels. According to the statistics of battery cell shipments, the shipments of lithium batteries for residential energy storage systems of the top three companies have all exceeded 1GWh. In addition, ATL, EVE Energy, Ruipu Energy and Great Power are mainly selling battery cells. WinAck Group can provide Residential ...