Lithium-ion batteries: Opportunities and challenges in underwater military applications-Puhang Electronic Equipment Military Civilian Innovation Company

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Lithium-ion batteries: Opportunities and challenges in underwater military applications

2021-09-28

In the past twenty years, lithium-ion battery technology has been used in underwater applications in the defense sector, such as conventional submarines, special forces transport vehicles, submersibles, and torpedoes. Despite its widespread use in various applications, lithium-ion batteries can be described as a relatively immature energy storage technology. Lithium-ion battery technology has been improved and has become a truly emerging technology across various civilian and defense applications. Global data indicates that the following are the main opportunities and challenges for lithium-ion batteries in underwater applications: 1. Potential alternative to lead-acid batteries. Lithium-ion batteries are a potential alternative to lead-acid batteries, which are the primary power source for submarines. Compared to lead-acid batteries, LIBs have higher energy density, improved charge and discharge dynamics, and a longer overall lifespan, typically more than twice that of lead-acid batteries. All diesel-powered submarines use batteries to operate silently underwater. The batteries are charged by diesel engines, which require oxygen to operate. This necessitates that submarines surface or at least snorkel to expose the periscope, air intake, and exhaust above the water surface. Using lithium-ion batteries, submarines can stay submerged for longer periods, and the energy stored in an entire battery pack can power a small town for several hours. The design of lithium-ion batteries allows them to be installed in any submarine with slight technical modifications, thereby directly replacing lead-acid batteries.

General Aviation Electronics

Over the past two decades, lithium-ion battery technology has been used in underwater applications in the defense sector, such as conventional submarines, special forces transport vehicles, submersibles, and torpedoes. Despite its widespread use in various applications, lithium-ion batteries can be described as a relatively immature energy storage technology. Lithium-ion battery technology has improved and has become a truly emerging technology across various civilian and defense applications. Global data indicates that the following are the main opportunities and challenges for lithium-ion batteries in underwater applications:

1. Potential Replacement for Lead-Acid Batteries

Lithium-ion batteries are a potential replacement for lead-acid batteries, which are the primary power source for submarines. Compared to lead-acid batteries, LIBs have higher energy density, improved charge and discharge dynamics, and a longer overall lifespan, typically more than twice that of lead-acid batteries. All diesel-powered submarines use batteries to operate silently underwater. The batteries are charged by diesel engines, which require oxygen to operate. This necessitates that submarines surface or at least snorkel to expose the periscope, air intake, and exhaust above the water surface. Using lithium-ion batteries, submarines can remain submerged for longer periods, and the energy stored in an entire battery pack can power a small town for several hours. The design of lithium-ion batteries allows them to be installed in any submarine with slight technical modifications, directly replacing lead-acid batteries.

Key words:

Lithium battery manufacturers explain the characteristics and applications of military special lithium battery products

Are lithium batteries afraid of low temperatures? Military low-temperature lithium battery standards

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