As an important part of new energy vehicles, the choice of battery technology of electric ships has an important influence on the performance, endurance and environmental protection of ships. This article will start from the technical route of new energy batteries such as lithium batteries, fuel cells and supercapacitors, and discuss which technical route is more suitable for the application scenario of electric ships.

1. Lithium battery technical route

lithium battery is one of the most widely used battery technologies at present, which has the advantages of high energy density and long cycle life. In the field of electric ships, lithium battery technology route has the following advantages:

• high energy density: lithium battery can provide higher energy density, which is conducive to improving the endurance of the ship;
• high charge and discharge efficiency: lithium battery has high charge and discharge efficiency and can provide stable power output;
• mature and stable: lithium battery technology has been relatively mature, with high safety and reliability.

2. Fuel cell technology route

fuel cell is a kind of battery technology that uses hydrogen as fuel and generates electric energy through biochemical response of hydrogen and oxygen in electrolyte membrane. In the field of electric ships, the fuel cell technology route has the following advantages:

• zero emission: fuel and electricityThe only by-product produced by the battery is water, which has the environmental protection advantage of zero emission;
• endurance: The fuel cell can provide continuous and stable electric energy output, which is conducive to improving the endurance of the ship;
• fast charging: The fuel cell charges fast, which can improve the operating efficiency of the ship.

3. Super capacitor technology route

super capacitor is a kind of energy storage equipment with high energy density and high power density, which has the advantages of fast charging and discharging, long cycle life and so on. In the field of electric ships, the super capacitor technology route has the following advantages:

• fast charging: Super capacitor has the characteristics of fast charging and discharging, which is suitable for electric ships sailing in short distance;
• high power output: Super capacitor can provide high power output, which is conducive to improving the acceleration performance of the ship;
• long cycle life: the super capacitor has a long cycle life and is not easily affected by the number of charge and discharge times.

4. Consideration factors of technical route selection

in choosing suitable for electric ships new energy battery the following factors need to be taken into account in the technical route:

In the field of electric ships, new energy battery technology routes such as lithium batteries, fuel cells and supercapacitors all have their own advantages and applicable scenarios. When choosing a technical route suitable for electric ships, it is necessary to comprehensively consider factors such as ship type, endurance demand, charging facilities and cost, and select the most suitable technical route, in order to realize efficient and environmentally friendly operation of electric ships.