A Protophilic MOF Enables Ni‐Rich Lithium‐Battery Stable Cycling in a High Water/Acid Content

O or 1107 ppm acidic impurity. This tenfold longer battery lifespan relative to those for batteries with conventional standard separators demonstrates its excellent electrochemical cycling performance. The results reveal that the rational use of unique nanoporous features of MOFs can provide new possibilities for long-standing challenges in the lithium-battery industry.