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Battery and electronic apparatus

外国特許コード F190009726
掲載日 2019年3月29日
出願国 欧州特許庁(EPO)
出願番号 16881451
公報番号 3399573
出願日 平成28年3月10日(2016.3.10)
公報発行日 平成30年11月7日(2018.11.7)
国際出願番号 JP2016057496
国際公開番号 WO2017115471
国際出願日 平成28年3月10日(2016.3.10)
国際公開日 平成29年7月6日(2017.7.6)
優先権データ
  • 特願2015-255668 (2015.12.28) JP
  • 2016JP57496 (2016.3.10) WO
発明の名称 (英語) Battery and electronic apparatus
発明の概要(英語) A battery includes a main body (2) having a space (SP1) therein, and including a channel communicating between an outside and the space (SP1); a pair of electrodes (213, 214) adjoining the space (SP1); and a valve (215, 216, 217) that closes the channel responsive to pH.
従来技術、競合技術の概要(英語) BACKGROUND ART
Batteries are known, which are introduced to the digestive tract of a living body where a fluid in the digestive tract functions as an electrolyte, to generate electric power. For example, the battery disclosed in Patent Document 1 includes a space to which a fluid is to enter, and a channel communicating between the space and the outside of the battery. The gastric fluid are used as a fluid acting as an electrolyte.
Prior-Art Document
Patent Document
[Patent Document 1] Japanese Laid-open Patent Publication No. 2010-508293
特許請求の範囲(英語) [claim1]
1. A battery comprising:
a main body having a space therein, and having a channel communicating between an outside and the space;
a pair of electrodes adjoining the space; and
a valve that closes the channel responsive to pH.
[claim2]
2. The battery according to claim 1, wherein the valve comprises:
a valve seat;
a support that is dissolved responsive to pH; and
a valve member that is biased toward the valve seat and supported by the support at a location distant from the valve seat, and closes the channel by contacting the valve seat upon the dissolution of the support.
[claim3]
3. The battery according to claim 1, wherein the valve comprises:
a valve seat;
a volume changing body that undergoes a volume change responsive to pH; and
a valve member that is supported by the main body with contacting the volume changing body, and closes the channel by contacting the valve seat upon the volume change of the volume changing body.
[claim4]
4. The battery according to claim 1, wherein the valve is disposed at the channel, and comprises a volume changing body that closes the channel by undergoing a volume increase responsive to pH.
[claim5]
5. The battery according to claim 4, wherein at least a part of the main body is made from optically transmissive material such that the volume changing body is irradiated with light through the at least a part of the main body.
[claim6]
6. The battery according to any one of claims 1-5, wherein the valve closes the channel when pH external to the space is higher than a predetermined threshold.
[claim7]
7. The battery according to any one of claims 1-5, wherein the valve closes the channel once a fluid has been introduced to the space through the channel, when pH external to the space is lower than a predetermined threshold.
[claim8]
8. The battery according to any one of claims 1-7, further comprising a film that coats at least a part of the main body, and is dissolved responsive to pH.
[claim9]
9. An electronic device comprising:
a battery that generates electric power; and
a circuit that is energized by the generated electric power,
the battery comprising:
a main body having a space therein, and having a channel communicating between an outside and the space;
a pair of electrodes adjoining the space; and
a valve that closes the channel responsive to pH.
[claim10]
10. The electronic device according to claim 9, wherein the battery is disposed at a first layer, and
the circuit is disposed at a second layer different from the first layer.
[claim11]
11. The electronic device according to claim 10, further comprising a second battery different from the battery as a first battery,
the second battery being disposed at a third layer that is disposed opposite to the first layer relative to the second layer, and is different from the first layer and the second layer.
  • 出願人(英語)
  • TOHOKU UNIVERSITY
  • 発明者(英語)
  • YOSHIDA, Shinya
  • NAKAMURA, Tsutomu
  • HYODO, Hiroshi
  • HONMA, Itaru
国際特許分類(IPC)
指定国 Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Extension States: BA ME
参考情報 (研究プロジェクト等) COI STREAM(COITOHOKU)

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