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The sluggish kinetic of Na+ in anode limits the rate capability of sodium ion batteries (SIBs). Herein, pyrophosphate, as a Na+ pump in cell membrane, is integrated with cobalt redox...

The formation of lithium dendrites during cycling because of the uneven distribution of Li+ causes shortened lifespan and even safety hazards, which seriously hinder the practical application of lithium metal batteries. Here, a class for commercially available low-cost zeolite as electrolyte additives is proposed. Relying on its huge specific surface area and ion exchange capability, zeolite is a suitable “Li+-carrier” to deliver uniform Li+ distribution for dendrite-free Li deposition. Resultantly, Coulombic efficiency of the Li||Cu cell in an electrolyte with ultrastable Y zeolite addition is more than 98% even at a high current density of 5 mA cm–2. The as-prepared electrolyte prolonged the cycle life to 1100 h for the Li||Li symmetric cell and enabled a high specific capacity of 123.4 mA h g–1 at 3.2 C for the Li||LiFePO4 cell, respectively. This research provides ideas to accelerate the development of high energy density lithium metal batteries.