DedicatedtoProfessor Reshef Tenne on the occasion of his 75th birthdayRechargeable seawater batteries have gained recognition as key sustainable electrochemical systems by employing the near-infinite and eco-friendly catholyte seawater.H owever, their practical applications have been limited owing to the low chemicala nd electrochemical stabilityo ft he anode component. Herein, as tability-secured approach was developed by using sodium-biphenyl-dimethoxyethane solution as ar edoxactive functional anolytef or high-performances eawater batteries. This anolyte system shows high electrochemical stability, superior cycle performance, and cost-effectiveness over conventional electrolyte systems. Figure 2. Voltage profiles of Na-BP-DME upondesodiation/sodiation processes in (a) Na-BP-DME electrode j Na metal cell and (b) SWB full cell at 0.5 mA cm À2 . Figure 4. Cycle performance of as eawater coin cellwith (a) Na-BP-DMEa nd (b) NaTf-TEGDME at acurrent density of 1mAcm À1 .Insitu DEMSd ata of (c) SUS mesh/Na-BP-DME/seawater and (d) SUS mesh/NaTf-TEGDME/seawater DEMSc ell. (e) 1 HNMR (400 MHz, CDCl 3 )s pectra of desodiated BP-DME.

Ni(COD) 2 -catalyzed cycloaddition reactions to access pyridines have been extensively studied. However, this catalyst typically requires drying procedures and inert-atmosphere techniques for the reactions. Herein, we report operationally simple nickel(0) catalysis to access substituted pyridines from various nitriles and 1,6-diynes without the aid of air-free techniques. The Ni-Xantphos-based catalytic manifold is tolerant to air, moisture, and heat while promoting the [2 + 2 + 2] cycloaddition reactions with high reaction yields and broad substrate scope. In addition, we disclose that not only the steric effect but also the frontier molecular orbital interactions can play a critical role in determining the regiochemical outcome of nickel-catalyzed [2 + 2 + 2] cycloaddition for the synthesis of substituted pyridines.