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Commercial lithium-ion phosphate batteries were tested to investigate their responses to overcharge and overdischarge conditions. During overcharge tests, cells were charged at 1C successively until certain visual symptom such as gas release or vent burst occurred. While during overdischarge tests, cells were discharged and kept at 0V or even negative polarity. Parameters such as internal temperature,...
In recent years much attention has been focused upon performance degradation for lithium-ion batteries due to safety issues. Although SOH diagnosis and remaining life predication for individual cell is relatively sophisticated, module diagnosis especially for electric vehicle(EV) has rarely been reported and applied due to complexity of system. This paper focused on the performance degradation of...
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