{
  "$type": "site.standard.document",
  "description": "A lead acid storage battery having a positive electrode , a negative electrode , a separator , and a porous membrane , in which the separator and the porous membrane contain a glass fiber and are disposed between the positive electrode and the negative electrode , the porous membrane is disposed in…",
  "path": "/patents/1426799",
  "publishedAt": "2026-06-25T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M50/449",
    "Energywith Co., Ltd."
  ],
  "textContent": "A lead acid storage battery having a positive electrode , a negative electrode , a separator , and a porous membrane , in which the separator and the porous membrane contain a glass fiber and are disposed between the positive electrode and the negative electrode , the porous membrane is disposed in at least one of a position between the positive electrode and the separator and a position between the negative electrode and the separator , and a void ratio of the porous membrane as obtained by X-ray CT measurement is 18.0% or more.",
  "title": "LEAD ACID STORAGE BATTERY AND METHOD FOR PRODUCING SAME"
}