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2013
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With the shift toward cleaner energy sources, the role of energy storage systems has become critically important. The demand for efficient energy storage and reliable access to that energy has highlighted the importance of lithium-ion batteries' performance and longevity. Consequently, manufacturers are increasingly focusing on enhancing the safety, reliability, and durability of lithium-ion batteries.
ATESS has taken massive steps to lead advancements in energy storage battery management. Their cutting-edge Battery Management System (BMS) is equipped with active balancing technology, ensuring that the Battery Energy Storage System (BESS) operates at optimal performance levels, thereby extending the battery's lifespan and enabling the battery system to adapt to different load conditions.
Critical Issues in Energy Storage Battery Management
Let’s see what the critical issues are in energy storage battery management of modern-day systems.
1. Inconsistency in Performance
Differences among battery cells in terms of capacity, internal resistance, and open-circuit voltage can affect the overall system efficiency. As cells age at different rates, this inconsistency potentially leads to accelerated degradation of certain cells and premature failure of the entire pack.
2. Challenges in Battery Life and Safety
Over time, the natural degradation of batteries leads to reduced capacity and shorter operational life. Every charge and discharge cycle causes wear on the cells, eventually impacting the system's ability to store and release energy efficiently.
Safety is yet another major concern in battery systems. Issues such as overheating, overcharging, or cell failure can lead to serious risks, including thermal runaway or even fires.
3. Efficiency and Cost Issues
With batteries aging, their charging and discharging efficiency gradually decreases, causing energy waste and increased operational costs. And if you go towards frequent maintenance and early replacement of battery cells, it becomes a burden on your pocket.
4. Environmental Adaptability and Maintenance
Energy storage systems must be able to function reliably in a range of environmental conditions. However, extreme temperatures and humidity can significantly impact battery performance and shorten their lifespan. Moreover, failure to perform proper maintenance can trigger reduced efficiency and even safety hazards.
ATESS Advanced BMS Technology
ATESS has developed an advanced BMS that incorporates innovative active balancing technology. This technology improves the efficiency and lifespan of energy storage systems by managing the performance of individual battery cells. Unlike traditional methods, active balancing works by redistributing energy between cells to maintain a more consistent voltage across the entire battery pack.
Let’s have a look at how the ATESS advanced BMS active balancing technology works.
1. Operation Modes of ATESS Active Balancing Technology
The ATESS active balancing technology keeps the battery pack in peak condition. Here are the three operational stages of this technology.
l Standby State: When the system is not actively charging or discharging, the advanced BMS enters a standby mode. During this phase, the system continuously monitors the voltage of each battery cell and makes sure that no significant imbalance occurs. The balancing system remains on alert and is always ready to engage if any discrepancies are detected, but no active energy redistribution takes place.
l On State: When the system identifies a voltage imbalance, it enters the active mode. In this state, this advanced BMS actively works to balance the cells by redirecting energy from higher-voltage cells to lower-voltage ones. This way, the advanced BMS ensures that no single cell bears an uneven load, which could cause premature wear or reduce overall efficiency.
l Off State: If no imbalances are detected, or if the system has completed a balancing cycle and the voltage levels are consistent across cells, the BMS lithium battery switches to the off state. In this mode, the balancing process is temporarily halted, and the system conserves energy while remaining ready to resume balancing when necessary.
1. Advantages of ATESS Active Balancing Technology
ATESS active balancing technology brings numerous advantages to energy storage systems, such as:
l Reduced Maintenance Costs: By keeping the battery cells balanced and operating optimally, the need for constant repairs or replacements is minimized, which directly translates into reduced maintenance costs.
l Improved System Stability and Reliability: ATESS advanced BMS ensures that the voltage levels of individual cells are kept within safe limits. This heightened stability not only extends the life of the battery pack but also enhances the overall reliability of the energy storage system, preventing sudden failures or unexpected shutdowns.
l Enhanced Load Adaptability: Another critical advantage of ATESS active balancing is its ability to handle different load conditions more effectively. In systems where battery cells are not correctly balanced, weaker cells can limit the system’s ability to handle higher loads. However, ATESS technology keeps cells balanced and allows the system to adapt to heavier loads without compromising performance.
3. Applications in Large-Scale Energy Storage Systems
The benefits of ATESS active balancing technology are particularly evident in large-scale battery energy storage systems. These systems are often used to support power grids or store renewable energy, requiring reliable and efficient energy storage to avoid costly disruptions. Meanwhile, by actively balancing the battery cells, ATESS technology can ensure that the energy storage system responds quickly and accurately to grid fluctuations, providing the necessary support to maintain grid stability.
Wrapping-Up
When evaluating active balancing vs passive balancing, active balancing proves to be more efficient, as it redistributes energy among batteries, ensuring the battery system operates at optimal performance at all times.
ATESS, a global leader in industrial energy storage solutions, is dedicated to maximizing energy efficiency and reducing dependence on traditional power sources. Established in 2017, this company has provided innovative energy storage technologies to over 100,000 users in more than 85 countries. Contact ATESS now to learn how you can optimize your energy storage solutions with advanced BMS technology.
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