lithium-ion batteries

Development of Membranes Based on Polyvinylidene Fluoride for Lithium Batteries

Two methods for producing lithium-conductive polymer films based on polyvinylidene fluoride (PVDF) were studied: saturating a dielectric PVDF film with a lithium-conductive solution and incorporating a lithium-conductive solution into a PVDF solution, followed by the fabrication of a lithium-conductive film. A comprehensive set of electrophysical studies on the properties of the proposed gel-polymer electrolyte across a wide temperature range (20–70 ℃) and frequency range (0.1 Hz–32 MHz) was conducted.

MODELING OF THERMOELECTRIC PROCESSES IN A FAULTY LITHIUM-ION BATTERY WITH A LOST CELL

Wide range of malfunctions can occur during the operation of lithium-ion battery packs (BPs). However, most existing studies focus on internal short circuits and thermal runaway of the battery detection. The same statement also applies to the most common monitoring methods of BP operating parameters and their faults detection. Therefore, such methods may be incapable of identifying a malfunction such as degradation or a complete loss of electrical connection to a cell within the battery.