Abstract: Embodiments of this application provide a solid-state electrolyte. The solid-state electrolyte includes a porous coordination polymer having an unsaturated metal site, an anionic group coordinated with and grafted on the unsaturated metal site, and a cation bound with the anionic group. The anionic group includes one or more substituted carboxylate anionic groups and/or one or more substituted sulfonate anionic groups. The cation includes one or more of a lithium ion, a sodium ion, a potassium ion, a magnesium ion, a zinc ion, and/or an aluminum ion.

Abstract: Disclosed is a metal anode, including a metal anode body (10) and a protective layer (11) formed on one or two side surfaces of the metal anode body (10). The protective layer (11) includes a coordination polymer having an unsaturated metal site or a complexation product formed by complexation between the coordination polymer having the unsaturated metal site and anions of battery electrolyte salt. The coordination polymer uses zirconium, aluminum, or iron as a center and uses R—Xn as an organic ligand, R is n-valent hydrocarbyl, substituted hydrocarbyl, or hydrocarboxy, n is an integer in a range of 1 to 4, X is an oxygen-containing functional group capable of forming metal-oxygen chemical bond with the metal anode body (10), and the metal-oxygen chemical bond is formed between metal atoms on a surface of the metal anode body (10) and oxygen atoms in the X group.anodeanode.

Abstract: A fuel cell includes: 1) an anode; 2) a cathode; and 3) an ion conducting membrane disposed between the anode and the cathode, wherein the anode includes a tungsten oxide-containing layer.

Abstract: A sulfone polymer composition and preparation method thereof, and thermoplastic molding composition therefrom, comprising: (A) at least one aromatic sulfone polymer; (B) one compound of 4,4?-dichlorodiphenyl sulfone; wherein, based on the total weight of the sulfone polymer composition, 4,4?-dichlorodiphenyl sulfone weight content is less than 600 ppm. In the preparation method, tetramethylene sulfone is used as a solvent, 4,4?-dichlorodiphenyl sulfone and 4,4?-Dihydroxydiphenyl sulfone or 4,4?-dihydroxy biphenyl are used as reactive monomers, while the mixed salt of sodium carbonate and potassium carbonate is used as salt-forming agent, the composition may be obtained by polymerization with solution polymerization techniques; wherein the molar ratio of the said potassium carbonate and sodium carbonate is 0.1: 100-5: 100.