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Electrolytes play a decisive role in determining the energy density, cycling life, safety, and temperature adaptability of lithium-ion batteries or any advanced battery chemistries. Here a "pseudoconcentrated electrolyte" combining advantages of both concentrated and diluted electrolytes is described as a brandnew approach for high-performance lithium-ion batteries. By designing a heterogeneous liquid structure for an electrolyte, we made it possible for Li + to form a solvation sheath structure that is only attainable in concentrated electrolytes while using a low salt concentration. Such a pseudoconcentrated electrolyte, with lithium bis(trifluoromethanesulfonyl imide) as lithium salt and carbonates as solvents, demonstrates high electrochemical oxidation resistance and a high anticorrosion capability toward an Al current collector, which are usually the characteristics of concentrated electrolytes, as well as high ionic conductivity and low viscosity, which are only available from diluted electrolytes. Thus, this innovative approach provides a brand-new avenue to tailor electrolyte properties for advanced battery chemistry applications.

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We demonstrated the B­(C6F5)3-catalyzed group transfer polymerization (GTP) of acrylate monomers with hydrosilane by the in situ formation of silyl ketene acetals (SKAs) as the initiator by the B­(C6F5)3-catalyzed 1,4-hydrosilylation of acrylate monomers and hydrosilane. In addition, this new GTP method was clarified in terms of the polymerization mechanism, scope and limitation of the acrylate monomers, the livingness of the polymerization, and the synthesis of statistic and block acrylate copolymers and ω-end-functionalized acrylate polymers. A mechanism involving six elementary reactions was proposed based on the specified analysis of the 1,4-hydrosilylation reaction and the usual GTP using a Lewis acid catalyst. The B­(C6F5)3-catalyzed GTP using Me2PhSiH was applicable for not only various alkyl acrylates, such as the methyl, 2-ethylhexyl, cyclohexyl, and dicyclopentanyl acrylates, but also functional acrylates, such as the 2-methoxyethyl, 2-(2-ethoxyethoxy)­ethyl, tetrahydrofurfuryl, allyl, triisopropylsilyl, and 2-(triisopropylsiloxy)­ethyl acrylates. On the other hand, the isobornyl, tert-butyl, 2-methyl-2-adamantyl, 2-(dimethylamino)­ethyl, and 2-oxotetrahydrofuran-3-yl acrylates were unsuitable GTP monomers because they showed low or even no polymerization property due to the deactivation of the B­(C6F5)3 catalyst or the in situ produced SKA initiator. The livingness for the GTP of suitable acrylates using Me2PhSiH was verified by the kinetic studies, which was applied to the random and block copolymerizations of two different acrylate monomers. Finally, the ω-end-functionalization of the nucleophilic propagating end of poly­(n-butyl acrylate) was performed using electrophiles, such as benzaldehyde, N-benzylidene­methylamine, and N-benzylidene­benzylamine, as terminators.

[Cu5(OH)4(H2O)2(A-α-SiW9O33)2]10− (1) was tested as a molecular catalyst for visible-light-driven H2 evolution and exhibited a high TON of 718.9. Many stability studies showed that 1 could maintain its structure intact during the catalytic process.