Safety issues of new energy vehicle batteries
Hidden dangers during charging: When the battery is charged, the chemical reaction that occurs internally is the reduction of lithium ions into metallic lithium in this process. , lithium has a certain It is possible to form branch-shaped lithium dendrites and pierce the separator that separates the positive and negative electrodes, causing a short circuit. At the same time, lithium metal itself is also a very active metal and reacts with air, electrolytes, etc.
External collision or extrusion: Vehicle collisions and extrusions can damage the battery. If the chassis is bumped, you should go to the 4S store for inspection in time.
Long-term exposure to humid and high temperature environments: In humid and high temperature environments, lithium batteries will also experience adverse effects.sudden increases in internal pressure. When heat builds up locally in the battery, internal chemicals will. break down, causing the diaphragm to melt, causing an internal short circuit. The consequence is that the explosion-proof membrane of the battery core ruptures, causing combustion and fire.
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