According to The Elec, LG New Energy set the goal of mass production of “lithium-sulfur batteries” as early as three years. Industry sources said LG New Energy is allegedly planning to commercialize lithium-sulfur batteries as early as 2027, and aviation will be the first application area to be considered.
Lithium-sulfur batteries are currently considered to replace lithium-ion batteries, the energy density per unit weight of the battery is about twice the traditional battery. That is, with the same battery, the new electric car range can be increased from 400 km to more than 700 km.
On top of that, it has the added advantage of being able to be used in cold environments without degrading performance, something that is still a big problem for the widely used lithium ternary and lithium-ion batteries.
Unlike ternary batteries that use nickel, cobalt, manganese, or aluminum, lithium-sulfur batteries use a sulfur-carbon composite as the cathode material. In the battery, sulfur gradually transfers ions from the anode to the cathode under the action of the reduction reaction, while charging is used to convert lithium sulfide to sulfur.
Of course, this kind of battery also has disadvantages, at present, mainly when repeatedly charging and discharging the problem of life declines, after all, sulfur itself has low conductivity, and energy transfer efficiency and low, so the amount of electrolyte must be increased.
An industry source said, “All-solid-state batteries still have many challenges to overcome, as well as cost issues, so next-generation products such as lithium-sulfur have more advantages in commercialization.”
