For the first time, Vietnam has manufactured thermally activated batteries.
Co-authors, Dr. Pham Manh Thao, Military Technical Academy and Dr. Doan Anh Tu, Vietnam-Russia Tropical Center (Ministry of National Defense) successfully researched and manufactured thermally activated batteries for the first time in Vietnam.
This type of battery has been applied at the General Department of Defense Industry.
Thermal batteries are non-transferable products in the Igla low-altitude air defense missile manufacturing chain. Manufacturing thermal batteries domestically helps Vietnam take the initiative in missile research and manufacturing, reducing costs due to having to import them, contributing to ensuring combat readiness of a large number of A72 and A87 low-altitude air defense missiles currently in service with the military, whose accompanying thermal power sources have expired.
Dr. Pham Manh Thao said an important discovery was that the team found a solution to melt, cast and roll calcium metal in sheet form from granular raw materials. This is the first time this technique has been researched and applied in Vietnam.
The results achieved are the premise for researching and manufacturing other types of thermal batteries used in missile technology such as Uran-E anti-ship missiles..., rockets, artillery shell fuses, bomb delay fuses, false target systems, trajectory adjustment systems, parachute seats in the aerospace industry...
In terms of innovation, the team has applied a number of technological and design improvements in the research and manufacture of thermoelectric batteries. Using nickel-plated stainless steel mesh as the anode carrier reduces the cost of thermoelectric batteries and at the same time diversifies the materials used to manufacture thermoelectric batteries.
Accordingly, the carrier for the active substance of the anode is not only limited to the mesh of metals such as nickel or silver, but can also use nickel-plated stainless steel mesh. The separator consists of two layers of thin glass cloth, instead of the traditional one layer, which helps the cathode not react with the electrolyte during the thermal battery storage process, and avoids the phenomenon of short circuit due to the formation of metallic lithium and Li-Ca alloy when the battery is working.
Creating a passivation layer on the calcium surface in the author's solution has the effect of protecting the cathode surface during the fabrication and assembly of thermal batteries, reducing the corrosive effects of the environment; prolonging the storage time of the thermal battery before use./.
According to (TTXVN) - VT
