Exceptional water production yield enabled by batch-processed portable water harvester in semi-arid climateShan, He (Avtor) Li, Chunfeng (Avtor) Chen, Zhihui (Avtor) Ying, Wenjun (Avtor) Poredoš, Primož (Avtor) Ye, Zhanyu (Avtor) Pan, Quanwen (Avtor) Wang, Jiayun (Avtor) Wang, Ruzhu (Avtor) atmospheric water harvestingnanocomposite sorbentsporous stucturesadvanced thermal engineeringfield testsSorption-based atmospheric water harvesting has the potential to realize water production anytime, anywhere, but reaching a hundred-gram high water yield in semi-arid climates is still challenging, although state-of-the-art sorbents have been used. Here, we report a portable and modularized water harvester with scalable, low-cost, and lightweight LiCl-based hygroscopic composite (Li-SHC) sorbents. Li-SHC achieves water uptake capacity of 1.18, 1.79, and 2.93 g g−1 at 15%, 30%, and 60% RH, respectively. Importantly, considering the large mismatch between water capture and release rates, a rationally designed batch processing mode is proposed to pursue maximum water yield in a single diurnal cycle. Together with the advanced thermal design, the water harvester shows an exceptional water yield of 311.69 g day−1 and 1.09 g gsorbent−1 day−1 in the semi-arid climate with the extremely low RH of ~15%, demonstrating the adaptability and possibility of achieving large-scale and reliable water production in real scenarios.20222023-04-13 14:21:22Članek v reviji145244sl