Yifan Wu, Tianye Xie, Xincan Cai, Weiyi Lin, Pu Yan, Nana Li, Rongliang Shang, Qing Zhang, Yingdong Deng, Guohui Zhong, Wenge Yang, Hongliang Dong, Fan Zheng, Jin Xie
O, we reveal a unique synergistic effect between Al and W: whereas W alone tends to segregate at the particle surface, the presence of Al facilitates its lattice incorporation. Notably, lattice-incorporated W significantly enhances rate capability and high-voltage cycling stability, attributed to robust W-O bonding within the host lattice. This ALD-based model system provides a versatile and broadly applicable platform for elucidating fundamental doping mechanisms in solid-state synthesis, offering critical insights into complex multidopant interactions.