Low Self-Discharge 12V 200Ah Lifepo4 Customer Made Battery Pack

Why is resistance a good barometer for estimating battery life?

It can indicate how much lithium fuses with a liquid electrolyte, which transports ions from one electrode to another within the battery. This bonding layer, known as the solid electrolyte interphase, protects the surface of the electrode and makes it last longer.

The amount of lithium entering the solid electrolyte interphase is often difficult to measure. However, in the low state of charge, the internal resistance of the battery is closely related to the amount of lithium entering the solid electrolyte interphase. This provides a quick measurement of this protective layer, as well as a measurement of the battery's operating capacity with a common device.

MIT's research provides a useful tool for automakers, as most automakers are rapidly shifting their product lines from internal combustion technology to hybrid and electric transportation. This shift has the industry competing in lithium-ion battery materials, seeking to increase productivity and reduce costs – all at the same time.

Everwin Tech Co., Limited was established in 2009 and is a professional battery manufacturer specializing in reserach design and producing power solutions for all kinds of market . EWT Battery provide ODM, OEM battery solutions for medical, solar lighting, smart metering  low speed vehicle and solar power storage system for customers all over the world.

Our products are widely used in various fields such as electric bicycles, electric motorcycles, electric scooters, electric forklifts, outdoor and home energy storage, electric tools, wireless vacuum cleaners, smart homes, security, medical and other fields. We provide a full range of intelligent manufacturing and services, including project evaluation, scheme design, battery pack structure design,  battery pack production, as well as product inspection and after-sales service, aiming to efficiently provide customers with the most competitive lithium battery solutions.