18650 rechargeable battery lithium 3.7v 3500mah
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18650 rechargeable battery lithium 3.7v 3500mah
18650 rechargeable battery lithium 3.7v 3500mah

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18650 lithium-ion battery

release time:2024-04-24 Hits:     Popular:AG11 battery

  What are the differences between 18650 lithium-ion battery and energy storage lithium batteries?

  In fact, 18650 lithium-ion battery are also the main power batteries used in pure electric vehicles. Due to its volume and weight limitations, as well as starting and acceleration requirements, 18650 lithium-ion battery have higher performance requirements than ordinary batteries. When the specific energy is high, the battery charges faster and the charge and discharge current is large, but the requirements for ordinary batteries are lower; according to this standard, the capacity of the power lithium battery is less than 80%, so it cannot be used anymore. For new energy vehicles. However, with slight modifications, it can also be used in energy storage systems.

  Depending on the application fields, 18650 lithium-ion battery are mainly used in pure electric vehicles, electric vehicles and other pneumatic tools, while energy storage lithium batteries are mainly used in peak regulation and frequency modulation power auxiliary services, renewable energy grids and microgrids.

  Due to different application fields, the requirements for battery performance are also different. First, as a mobile charger, power lithium battery, on the premise of ensuring safety factor, the greater its volume (quality) specific energy, the longer its service life. In addition, users also expect battery vehicles to be charged safely and quickly, so for safety reasons, power batteries have higher requirements for energy and power. Nowadays, batteries with a charge and discharge capacity of around 1C are widely used.

  Most energy storage devices do not need to be moved, so energy storage lithium batteries do not have direct specific energy requirements. Different energy storage methods have different power requirements.

  For user-side peak shaving, off-grid photovoltaic energy storage or peak time difference energy storage, the battery generally needs to be charged or discharged for more than 2 hours, so it is suitable to use volumetric rechargeable batteries, and the battery charging speed is ≤≤. In energy storage technology sites where DC deployment or renewable resources are less uncertain, energy storage batteries must be charged quickly within seconds to minutes, so they are suitable for ≥-2C power lithium battery applications. For some applications that require simultaneous broadcasting and peak shaving, it is more suitable to use energy batteries. Of course, in this case, volumetric rechargeable batteries can also be used.

  Energy storage lithium batteries have higher service life requirements than 18650 lithium-ion battery. The service life of new energy vehicles is generally 5-8 years, while the service life of energy storage technology projects is generally more than ten years. The service life of the power lithium battery cycle system reaches 1,000 to 2,000 times, while the energy storage lithium battery generally reaches 3,500 times.

  In terms of cost, 18650 lithium-ion battery will face competition from traditional fuel switching power supplies, while energy storage lithium batteries will face competition from traditional peak and frequency modulation technologies. In addition, because the operating scale of energy storage power stations is mostly above megawatts or even gigawatts, energy storage lithium batteries are more cost-effective and safer than 18650 lithium-ion battery.


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