High‑performance wide‑temperature zinc‑ion batteries with K+/C3N4 co‑intercalated ammonium vanadate cathodes
As demand for safe and low-cost energy storage grows, aqueous zinc-ion batteries (AZIBs) have emerged as promising candidates. However, their practical application is hindered by cathode instability and poor low-temperature performance. Now, researchers from The Hong Kong Polytechnic University and Shenzhen University, led by Professor Zijian Li, have developed a novel K⁺ and C3N4 co-intercalated NH4V4O10 (KNVO-C3N4) cathode that delivers exceptional performance across a wide temperature range.
Why K⁺/C3N4 Co-Intercalation ...