Which is the best lithium battery for marine?
Marine Lithium Battery will use different batteries according to the type of electric ship, so it cannot be generalized which type of electric ship lithium battery is better. It is necessary to compare the applications of the same type of electric ship. There are many types of electric boats, such as electric fishing boats, electric sightseeing boats, electric kayaks, etc., but overall they are mainly divided into two categories: unmanned model electric boats and manned practical electric boats.
1. Unmanned Model Electric Boat
There are many types of model electric boats, generally divided into high-speed model electric boats and constant speed stable electric boats, which use different types of electric boat lithium batteries.
The lithium batteries used in high-speed model electric boats belong to high rate batteries that support high current discharge. This type of lithium battery can provide strong explosive power to electric boats and is mostly used in entertainment, racing or competitive fields. The performance requirements for lithium batteries in electric boats are relatively high, and they are also sensitive to battery weight. Therefore, the batteries commonly used are high-performance soft pack polymer lithium batteries. Constant speed stable electric boats do not have very high requirements for battery discharge, as long as they can meet certain working or entertainment conditions. Of course, the weight of the battery is also important, so ordinary soft pack lithium batteries can be used.
That is to say, the lithium batteries used in unmanned model electric ships are only soft pack lithium batteries. As for lithium batteries such as steel shell 18650 lithium batteries or square aluminum shell lithium batteries, they are not suitable for use due to their heavy weight.
2. Practical electric ship for manned use
The batteries used in practical electric ships for manned use are power based, and the lithium batteries used in electric ships are also relatively large single cell lithium battery packs. Of course, like model electric ships, the larger the battery capacity and the lighter the weight, the better. Therefore, it is better to choose soft pack lithium batteries. However, there are several types of soft pack lithium batteries, generally including ordinary soft pack polymer lithium batteries, soft pack high rate polymer lithium batteries, soft pack iron phosphate lithium batteries, soft pack high rate iron phosphate lithium batteries, etc. Of course, they can also be divided into room temperature lithium batteries for room temperature applications and low-temperature lithium batteries for low-temperature applications. Mainly based on the practical application needs of manned electric ships, different soft pack lithium batteries are used.
Ordinary and stable manned practical electric boats, such as electric sightseeing boats and electric fishing boats, are more sensitive to price and seek economic benefits. Therefore, using lithium iron phosphate batteries for electric boats is better because lithium iron phosphate batteries are relatively cost-effective in terms of price and service life. At the same time, lithium iron phosphate batteries can meet the needs in terms of power supply and endurance.
The batteries used in practical electric boats for high-speed passenger transportation first require high current discharge performance. Therefore, the number of lithium batteries used in electric boats belongs to specialized high rate batteries, and there are two types of high rate lithium batteries: polymer lithium batteries and lithium iron phosphate batteries. These two types of batteries have better high rate discharge performance than lithium iron phosphate batteries, providing stronger power. Of course, the price is also the most expensive, so it depends on the speed requirements of electric boats for high-speed travel.
The above is some knowledge sharing about which
lithium battery is good for electric ships, hoping to be helpful to everyone.
