▎ 摘　　要

NOVELTY - Naphthyl polycarboxylic acid salt organic material comprises naphthyl compound (I) and carbon-based material crosslinked with naphthyl compound, where naphthyl compound includes alkali metal salt of 1,3,5-naphthalenetricarboxylic acid, 1,4,5-naphthalenetricarboxylic acid, 1,5,8-naphthalenetricarboxylic acid, 1,3,5,7-naphthalene tetracarboxylic acid, 1,4,6,7-naphthalene tetracarboxylic acid, 1,4,5,8-naphthalene tetracarboxylic acid, 1,2,3,4,6-naphthalenepentacarboxylic acid, 1,2,3,5,8-naphthalenepentacarboxylic acid, 1,2,4,5,8-naphthalenepentacarboxylic acid, 1,2,4,5,6,8-naphthalene hexacarboxylic acid, 1,2,3,4,5,8-naphthalene hexacarboxylic acid, 1,2,3,4,6,7-naphthalene hexacarboxylic acid, and 1,2,3,4,5,6,7,8-naphthalene octacarboxylic acid. USE - The organic material is useful for pole piece, metal ion battery and electrical device (all claimed). ADVANTAGE - The organic material: has carboxylate active sites, excellent specific capacity, long cycle performance and stability; stores metal ions and improves the capacity of storing metal ions, and chemical stability; and helps to enhance the electronic conductivity. DETAILED DESCRIPTION - Naphthyl polycarboxylic acid salt organic material comprises naphthyl compound of formula (I) and carbon-based material crosslinked with naphthyl compound, where naphthyl compound includes alkali metal salt of 1,3,5-naphthalenetricarboxylic acid, 1,4,5-naphthalenetricarboxylic acid, 1,5,8-naphthalenetricarboxylic acid, 1,3,5,7-naphthalene tetracarboxylic acid, 1,4,6,7-naphthalene tetracarboxylic acid, 1,4,5,8-naphthalene tetracarboxylic acid, 1,2,3,4,6-naphthalenepentacarboxylic acid, 1,2,3,5,8-naphthalenepentacarboxylic acid, 1,2,4,5,8-naphthalenepentacarboxylic acid, 1,2,4,5,6,8-naphthalene hexacarboxylic acid, 1,2,3,4,5,8-naphthalene hexacarboxylic acid, 1,2,3,4,6,7-naphthalene hexacarboxylic acid, and 1,2,3,4,5,6,7,8-naphthalene octacarboxylic acid. R and R' = H, halo, hydroxy, amino, nitro, cyano, mercapto, aldehyde, carbonyl, sulfonic acid, optionally substituted 1-3C alkyl or alkoxy (substituted by halo, hydroxy, amino, nitro, cyano, mercapto, aldehyde, carbonyl or sulfonic acid); x and y = 0-4, preferably 1-3; M1 and M2 = H and alkali metal; and R and R' = H. INDEPENDENT CLAIMS are also included for: Preparing naphthyl polycarboxylic acid salt organic material; Pole piece; Metal ion battery; and Electrical device.