{
  "$type": "site.standard.document",
  "description": "In order to overcome the problem of an existing secondary battery being difficult to achieve a balance among energy density, cycle performance and fast charging performance, the present invention provides a non-aqueous electrolyte solution, which comprises an electrolyte salt, a non-aqueous organic…",
  "path": "/patents/1387992",
  "publishedAt": "2026-05-06T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C07D327/10",
    "SHENZHEN CAPCHEM TECHNOLOGY CO LTD [CN]"
  ],
  "textContent": "In order to overcome the problem of an existing secondary battery being difficult to achieve a balance among energy density, cycle performance and fast charging performance, the present invention provides a non-aqueous electrolyte solution, which comprises an electrolyte salt, a non-aqueous organic solvent and an additive, wherein the non-aqueous organic solvent comprises a carboxylic ester; the additive comprises a compound as represented by structural formula 1: Formula I, where n is 0 or 1, A is selected from C or O, X is selected from II or III, R and R are each independently selected from H, IV or V, R and R are not selected from H at the same time, and X, R and R at least contain one sulfur atom; and the non-aqueous electrolyte solution satisfies the following conditions: 0.02 ≤ an/m ≤ 9, 0.01% ≤ a ≤ 5%, 5% ≤ m ≤ 70%, and 8% ≤ n ≤ 25%. Moreover, the present invention further discloses a secondary battery comprising the above non-aqueous electrolyte solution. According to the non-aqueous electrolyte solution provided in the present invention, the internal resistance of the battery is effectively reduced and the fast charging performance and the cycling performance of the battery are improved by limiting the content relation of the compound as represented by structural formula 1, the carboxylic ester and the electrolyte salt.",
  "title": "NON-AQUEOUS ELECTROLYTE SOLUTION AND SECONDARY BATTERY"
}