{
  "$type": "site.standard.document",
  "coverImage": {
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  "description": "A battery pack (70) is provided which can be suitably used in a case where charging of a dedicated secondary battery (20) in a portable terminal device (10) is difficult. The battery pack (70) is mounted in a battery mounting section (11) in a portable cellular phone (portable terminal device (10))…",
  "path": "/patents/1093010",
  "publishedAt": "2003-09-24T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M16/00",
    "NEC TOKIN CORP [JP]"
  ],
  "textContent": "A battery pack (70) is provided which can be suitably used in a case where charging of a dedicated secondary battery (20) in a portable terminal device (10) is difficult. The battery pack (70) is mounted in a battery mounting section (11) in a portable cellular phone (portable terminal device (10)) proper. In the battery pack (70), alkaline accumulators (71, 72) are connected in series. Alkaline accumulators (71, 72) generate electromotive forces having a voltage (3V) being lower than that of the dedicated secondary battery (20). A power source circuit (73) has a boosting-type DC/DC converter (73b) which boosts a voltage of the alkaline accumulators (71, 72) being connected in series at a level being same as that of the dedicated secondary battery (20) (for example, 4. 5V), and outputs the boosted voltage. An electrical double layer capacitor (74) has a capacity to feed stable power to an internal circuit (50) in which power consumption increases or decreases in a burst manner and is charged by application of an output of the power source circuit (73) and stores the power. (See Fig. 2)",
  "title": "Battery pack"
}