With the deepening of the concept of green environmental protection, the utilization rate of lithium batteries is getting higher and higher. Electric lithium bicycle batteries are non-polluting, lightweight, and have long battery life, and are well received by the market. How many types of electric bicycle lithium batteries are there? How to choose electric bicycle lithium batteries? At present, there are three types of lithium batteries for electric bicycles: lithium manganate, lithium iron phosphate, and ternary material batteries. The following is an introduction to the purchase knowledge of lithium batteries for electric bicycles.
How many types of lithium batteries are there for electric bicycles?
Electric bicycle lithium batteries are mainly divided into ternary lithium batteries, lithium manganate batteries, and lithium iron phosphate batteries. Different types of batteries use different cathode materials. The ternary lithium battery uses nickel diamond lithium manganese oxide or nickel diamond lithium aluminate as the ternary positive electrode material, the lithium manganate battery is a battery whose positive electrode uses lithium manganate material, and the positive electrode material of the lithium iron phosphate battery is lithium iron phosphate. In terms of application scenarios, ternary lithium batteries and lithium manganate batteries are widely used in two-wheel and three-wheel electric vehicles. Although lithium iron phosphate batteries are cheap, they take up a lot of space, so they are more widely used in electric buses.
So which of these three batteries is better?
First, acupuncture experiments were performed on the cells of three types of qualified lithium battery products on the market. Through this experiment, the situation when the lithium battery has an internal short circuit can be simulated. Through experiments, we can see that the ternary lithium battery burst into flames at the moment when the needle penetrated, and although the lithium manganate battery and the lithium iron phosphate battery had white smoke rising, there was no open flame burning. Next, we performed a squeeze test on the three types of batteries, and the result was still that the ternary lithium battery caught fire, while the lithium manganate battery and the lithium iron phosphate battery did not catch fire.
Are ternary lithium batteries inferior to lithium manganate batteries and lithium iron phosphate batteries? Experts said that although batteries have certain fire hazards, in terms of materials themselves, lithium manganate batteries and lithium iron phosphate batteries are more stable, and the probability of fire is much lower than that of ternary lithium batteries. Therefore, from a safety point of view, lithium manganate batteries and lithium iron phosphate batteries will be more stable.
How to choose an electric bicycle lithium battery?
1.Choose the specifications
First, determine what specifications of lithium batteries we need. Two-wheeled electric vehicles are generally 48V, and three-wheeled and four-wheeled are 60V or 72V.
2.Choose the capacity
The capacity of the battery is determined based on the cruising range and the size of the motor. It can be roughly calculated according to this formula: lithium battery voltage (lithium battery capacity/motor wattage) * average speed of electric vehicle = cruising range.
The above is the whole content of this article, I hope it can help you. If you want to know more about electric bicycles, welcome to read other articles on this site, thank you for reading.