Underwater submarine is an important underwater combat platform. As one of the core components of submarine, its battery power system directly affects the performance and operational efficiency of submarine. Abroad, a lot of researches and applications have been carried out in the battery power system of underwater submarine, continuously improving the submarine time, speed and combat capability. This article will analyze the technical principle, design features and application cases of the battery power system of underwater submarine abroad.

1. Technical principles

foreign underwater submarine battery power the system usually uses lithium ion battery as the energy storage device, and provides power support for the submarine through the charging and discharging process of the battery. When the submarine is running, the battery releases the stored electric energy and converts it into mechanical energy through the motor to push the submarine forward. Meanwhile, the battery system of the submarine also includes charging management system, battery protection system, etc. to ensure the safe and stable operation of the battery.

2. Design features

• high energy density: Foreign underwater submarine battery systems usually have high energy density, which can provide long-term submarine capability for underwater vehicles.
• Lightweight design: in order to reduce the weight of the submarine, the battery system usually adopts lightweight design to improve the speed and mobility of the submarine.
• Intelligent management: The battery system is equipped with an intelligent management system, which can monitor and control the charging and discharging process of the battery and prolong the battery life.
• Security Assurance: The battery system has multiple protection devices, including overcharge protection, overdischarge protection, short circuit protection, etc., to ensure the safe operation of the battery.

3. Application cases

• Bluefin Robotics Bluefin-21: this is an underwater submarine developed by Bluefin Robotics company in the United States, equipped with advanced lithium-ion battery power system, which can realize long-distance underwater operation tasks.
• Kongsberg HUGIN: this is an underwater submarine produced by Norway Kongsberg company. It adopts high-energy-density lithium-ion batteries. It has the characteristics of high speed and long voyage, and is widely used in marine survey, underwater search and other fields.

4. Technology Development Trend

• new battery technology: in the future, foreign underwater submarine battery systems may adopt more advanced battery technologies, such as solid-state batteries and metal air cell, to improve energy density and safety.
• Intelligent management: the battery system will be more intelligent and realize intelligent management and optimal control of the battery through technologies such as artificial intelligence and big data.
• Environmental protection and energy saving: future battery systems may tendIn the form of more environmentally friendly and renewable energy, reduce the impact on the environment.

As the key component of underwater submarine, the battery power system of overseas underwater submarine plays a vital role in the performance and operational efficiency of underwater submarine. Through continuous research and application, foreign underwater submarine battery systems have continuously improved their technical level in energy density, safety, intelligent management, etc, it provides reliable power support for underwater combat, marine survey and other fields.