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What Is Grade, Class in Lithium-Ion Batteries?
The concept of Grade (class) is a term often misunderstood and misused in the lithium-ion battery industry. Manufacturers usually add classification codes such as A Grade, B Grade, or C Grade on cell labels to indicate the quality and performance level of the cells. In...
The Importance of Cell Sorting Process
For lithium-ion batteries to be used safely, protection circuits are essential. One of the crucial functions of protection circuits is to balance the cells. In batteries with multiple cells connected in series, differences in electrochemical characteristics can lead to voltage imbalances during charge and discharge...
Li-ion Cell Spot Welding Processes
To create a battery pack, it's necessary to connect the battery cells with conductors. Typically, this connection is achieved through a process called spot welding or spot soldering. Spot welding involves passing a high current through the conductive material for a brief moment. During this process,...







