Industry News

In the fast-evolving world of new energy, reliable and efficient battery module testing is more critical than ever. Hongda New Energy brings you a state-of-the-art Module Test System designed to simplify testing workflows while ensuring accuracy and safety...

Shenzhen Hongda New Energy Co., Ltd., a deep player in the new energy battery testing field, has launched a professional testing solution focusing on the cell-module/PACK core links, tailored precisely to the application characteristics and industry pain point...

Why are lithium battery packs for electric vehicles bulky and heavy, while those for mobile phones are as thin and light as a card? Why can battery cabinets in energy storage power stations operate stably for a decade, yet some batteries in electric toys bulge...

Why don't new energy vehicles, power banks, or energy storage stations we use daily adopt exposed battery cells, but instead use neat "boxes"? This key step of transforming battery cells into practical products is PACK – battery system integration. It ...

The essence of lithium battery aging is a performance degradation process of the chemical system under cyclic charging/discharging or high-temperature environments, involving electrode material structure damage, electrolyte decomposition, SEI film thickening...

In the Era of New Energy: Battery Testing as the Key to Performance and Safety In the age of new energy, batteries are not just power sources; they are the foundation of safety and efficiency. Charge-discharge testing is the critical technology that unlocks...

In the battery industry, cells are classified into A-grade and B-grade based on production standards, performance parameters, and quality control. These two grades differ significantly in performance stability, consistency, safety, and application scenarios. B...

As the two core technical routes in the energy storage sector, lithium iron phosphate (LFP) and ternary lithium (NCM/NCA) have distinct performance characteristics that directly dictate their suitability for different energy storage scenarios. Lithium iron pho...

The straightforward answer is no​ – even when equipped with a BMS (Battery Management System), a lithium battery cannot achieve absolute 100% safety.

 Acting as the "intelligent brain" and "safety guard" of a lithium battery, the BMS is the core system ensuring its safe operation. It can instantly cut off the charging circuit when the cell voltage approaches the upper limit of 4.2V, preventing lithium plating and potential thermal runaway. It also stops discharge when the voltage drops below the lower limit of 2.5V to avoid irreversible damage. Furthermore, the BMS detects abnormal high currents and interrupts the circuit within milliseconds to mitigate short-circuit risks. When the temperature deviates from the safe operating range (typically 15-35°C), it limits power output or activates thermal management systems. Additionally, through cell balancing, the BMS ensures voltage consistency among individual cells in a pack, eliminating the root cause of local overcharging or over-discharging.

The core reason for lithium battery swelling (also known as expansion) is the accumulation of gas inside the cell. This phenomenon stems from several key causes, each directly linked to damage within the battery's internal structure.