[Solid-state battery: De'er's solid-state battery uses ternary cathode material or LFP for the cathode] On July 17, 2025, De'er Corporation disclosed the main materials of its solid-state battery when answering questions from surveyors. The cathode of De'er's solid-state battery can use ternary cathode material or LFP; the anode can use graphite or silicon carbon anode. Lithium metal anode batteries are also under R&D. The specific solutions for the company's cathode and anode materials can be customized according to different technical requirements of customers. The electrolyte is added to the battery cell through a coating process, without the liquid injection step, which is the biggest difference from the production process of liquid batteries.