What Are the Winter Range Issues of New Energy Vehicles?
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In cold climates, the rapid decline in battery capacity significantly affects the range of electric vehicles. Although the range of electric vehicles is increasing, it is still difficult to withstand the substantial reduction in battery performance during cold weather. Additional information: The impact of low-temperature environments on the activity of the electrolyte inside the battery: In low temperatures, the diffusion and movement capabilities of charged ions in the positive and negative electrode materials deteriorate, making it more difficult for them to pass through the passivation film between the electrodes and the electrolyte, thereby reducing the transfer speed. Even after lithium ions reach the negative electrode, their diffusion within the material becomes less smooth, and lithium may even condense on the negative electrode.