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What is the relationship between new energy vehicle range and battery life?

What is the relationship between new energy vehicle range and battery life?缩略图

  What is the relationship between range and battery life in new energy vehicles? There is a close and dynamic correlation between the range of new energy vehicles and battery life, which runs through the entire life cycle of the vehicle and is affected by multiple factors such as technology, usage habits and the environment.

  From a technical point of view, the energy density and capacity of the battery directly determine the initial range of the vehicle. Batteries with higher energy density can store more power in the same volume, thus extending the driving range after a single charge. A larger battery capacity provides the foundation for a longer range by increasing the amount of power available. Over time, battery chemistry degrades as maximum capacity decreases and internal resistance increases.

  Intense driving behaviours, such as frequent hard acceleration and hard braking, force the battery to output or absorb high currents in a short period of time, accelerating the consumption of internal chemicals and leading to faster capacity degradation. Unreasonable charging habits, such as overcharging, over-discharging or long-term use of fast charging, will also exacerbate battery aging.

  High temperatures accelerate chemical reactions within the battery, leading to capacity degradation and shorter life. Low temperatures increase the viscosity of the electrolyte, slowing down the diffusion of ions, reducing the charging and discharging efficiency of the battery, and reducing the range of the battery. Self-discharge of the battery caused by long-term parking will also indirectly affect the battery health and range.

  What is the relationship between new energy vehicle range and battery life? The extension of battery life lies in the comprehensive benefits achieved through technology iteration and usage optimisation. Advanced battery management system can accurately monitor the battery status, dynamically adjust the charging and discharging strategy, and slow down the decay rate while ensuring safety. Vehicle optimisation measures such as lightweight body design and low wind resistance can reduce energy consumption, indirectly improving range performance and reducing the burden on the battery.

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