{
  "$type": "site.standard.document",
  "description": "Provided are a battery and a battery module. The battery includes a housing, a core, a first connection piece, and a plate. The core is disposed in the housing. The first connection piece is disposed on one end of the housing. The first connection piece is connected to the core. The plate is…",
  "path": "/patents/1395215",
  "publishedAt": "2025-08-27T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M50/105",
    "EVE POWER CO LTD [CN]"
  ],
  "textContent": "Provided are a battery and a battery module. The battery includes a housing, a core, a first connection piece, and a plate. The core is disposed in the housing. The first connection piece is disposed on one end of the housing. The first connection piece is connected to the core. The plate is disposed on the side of the first connection piece facing away from the core. The side surface of the plate facing away from the first connection piece is provided with at least two concave arc-shaped grooves at intervals. All of the arc-shaped grooves are uniformly disposed annularly along the center of the plate. Groove bottoms of the arc-shaped grooves are welded to the first connection piece. According to the battery, the welding effect between the first connection piece and the plate is improved by disposing arc-shaped grooves on the plate.",
  "title": "BATTERY AND BATTERY MODULE"
}