As a new generation of rechargeable power, the lithium ion battery has the advantages of large energy density, high operating voltage, wide operating temperature range, long cycle life, high safety performance, is the mainstream development direction of current rechargeable batteries. It also has the characteristics of low maintenance requirements and non-memory effects. It can charge and discharge at any time, and almost no warfield maintenance is required, reduce the logistics burden, therefore attaches and develops from the national army.
. In recent years, the lithium-ion battery has been widely used in the system, drone, aerial aircraft and other equipment, exhibition in the land, sea, empty, and sky fields..
Advantages can not replace lithium-ion batteries is a new generation of rechargeable batteries after traditional batteries such as NiCH, and Sony Sony has successfully developed in 1990.. Lithium-ion battery work is simple, with better safety and longer charge and discharge life, is considered the first choice for new power sources.
. Lithium-ion batteries have the following advantages in applications. High working voltage.
The discharge voltage of a lithium-ion battery is equivalent to three conventional batteries, and under the same conditions of use, it greatly reduces battery usage.. High energy density.
It is 2 to 3 times that of ordinary batteries, plus small size, light weight, irreplaceable advantages in the field portable electronic equipment.. Circular service life.
Upper service life is 10 to 15 years, and it reduces the impact of high cost compared to traditional batteries for 7 to 8 years.. No environmental pollution.
Does not contain lead, mercury, etc., is a clean “green” energy. No memory effect.
It can be charged with discharge, especially in the war and emergency situations.. Low maintenance rate.
Almost don’t have any maintenance, reduce the logistics burden on the battle. In addition, there are advantages such as high security performance and wide working temperature range..
In recent years, countries have vigorously developed lithium-ion batteries as a new battery that replaces traditional batteries, and new lithium-ion batteries have many features, and there are irreplaceable advantages in portable electronic equipment applications.. Tend to be bent lightweight.
With the increasing amounts of miniaturization, portable, wearable electronic equipment, requirements and adapted power supply have the characteristics of light weight, small size, high than energy, arbitrary variation, and lithium-ion batteries have become the preferred by the above electronic equipment with excellent performance. power supply. In 2013, the US military developed a stretchable lithium-ion battery, which can be powered by a built-in watch wristband.
. Japan has introduced a flexible ultra-thin lithium-ion battery, still maintaining a stable power output after bending..
Another technical highlight of the battery is to use wireless charging techniques to make wearable devices do not need to design a battery installation area.. Energy density continues to improve.
A major factor in promoting the development of lithium-ion batteries is the application of emerging battery materials. In recent years, with the use of a variety of new electrode materials, key performance such as energy density, cycle life and stability of lithium-ion batteries are greatly enhanced..
In addition, the manufacturing process of lithium-ion batteries has also achieved a number of technological breakthroughs.. Japan’s new high-temperature full solid-state lithium ion battery, still has good conductive properties in a high temperature environment of 150 ° C, which expands the application range of lithium-ion batteries.
The United States uses a spray process to produce a large area of a lithium-ion battery, which can also form a battery on all objects to further improve the security capacity of battlefield energy.. Safety performance has achieved technical breakthrough.
High security is to equip the rigidity requirements of lithium-ion batteries to ensure that the battery is absolutely safe when it is high-intensity strike and impact, and it is important to achieve high security materials and optimize battery structures.. In January 2017, Stamford University, Stamford, USA, developed a micro “intelligent” fiber containing flame retardants, between the electrodes of the battery, preventing battery short circuit from fire.
In the test, when the lithium ion battery temperature reaches 160 ° C or more, the flame retardant is released into the electrolyte to ensure battery safety.. The main election of the future equipment is used as a power source.
In recent years, it has been widely used in electronic equipment, drone, showing good use performance, and gradually become an important energy for equipment.. System preferred power supply.
The lithium-ion battery is the best battery battery, which can not only supply a long-lasting stable power supply on the battlefield, but also greatly reduce weight, enhanced flexibility and mobile, becoming the preferred power supply for future equipment.. The “Soldier Snow Battery” developed by the US Army is a wearable lithium-ion polymer battery, thin shape, arrangement on the bulletproof board wearing soldier, reducing soldiers load.
The British department will use the lithium-ion battery as a system to replenish energy, and the bag-shaped lithium-ion battery developed has an ultra high ratio energy.. In addition, most of the future soldiers systems developed by the military in the world use lithium-ion batteries as a power source, such as the US “Land Warrior” system and Germany’s “future soldiers” system use lithium ion batteries.
. “Energy New Pet” in the sea. Lithium-ion batteries are used as power sources, which can greatly improve the speed, endurance mileage, survivability, reduce maintenance costs.
. In recent years, the multinational naval uses a lithium-ion battery in miniature, while developing a lithium-ion battery suitable for medium remote..
For example, the French Scorpio is equipped with a new generation of lithium-ion batteries that can withstand high current charging, making the charging time significantly, and the water is doubled.. Lithium-ion batteries are used to significantly reduce the volume and weight of the power part, and can be repeatedly used in training to meet the training needs.
. At present, the French Navy has successfully developed lithium-ion batteries, run more than 50 sections (92.5 km / h), and the battery life is more than 1 hour, reliability and security meet performance requirements.
. In addition, the foreign army also explores the power system for useing a lithium-ion battery as a water surface ship..
“Third Generation Power” of the aerospace. Lithium-ion batteries are referred to as third-generation space power supplies, in recent years, it is gradually applied to various space equipment..
For example, new lithium-ion batteries have been used as an international space station power supply. In the field, lithium-ion batteries are important to small, micro-drones. The “Longan” unmanned in the US military in the Afghan war, using a lithium-ion battery as a power source, has been inspected.
However, overall, the application of lithium-ion batteries in this field is still in its infancy, and the important constraints are insufficient miniaturization, and the driving force is not enough.. Large-scale power source.
In the ground equipment, the lithium-ion battery is important to use in unmanned ground vehicles, robots, mixed electric battles, etc.. For ground chariots that use oil-electric hybrid-driven, using lithium-ion batteries can not only reduce fuel consumption, reduce logistics burden, but also improve the mechanical power and survivability of tactical vehicles.
. At present, the foreign army actively develops lithium-ion battery module for mixed electric drive chariots, unmanned vehicles, ground robots. However, for large terrestrial equipment, lithium-ion battery power is weak is an important factor constraints.
. Therefore, in the future, we must continue to develop high-specific power, low-cost lithium-ion batteries to meet the task requirements of ground equipment.