JP7441868B2 - 充放電制御システム及び充放電制御方法 - Google Patents
充放電制御システム及び充放電制御方法 Download PDFInfo
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Description
また、本発明は、液体系電池により構成される電池(例えば、後述の円筒形リチウムイオン電池100、渦巻式電極の角型電池100A、角型リチウムイオン二次電池100B、コイン形リチウム電池100C)の内部に配置され前記電池の内部の画像を撮像する画像取得部(例えば、後述の画像取得部10)と、前記画像取得部により撮像された画像のデータ及び制御信号を転送する転送部(例えば、後述の転送部30)と、前記転送部からの前記画像のデータに基づいて前記電池に対する充電及び放電の制御を行う制御部(例えば、後述のECU50、制御回路14)と、を備える電池の充放電制御システム(例えば、後述の充放電制御システム1)を提供する。
また、本発明は、電池(例えば、後述の円筒形リチウムイオン電池100、渦巻式電極の角型電池100A、角型リチウムイオン二次電池100B、コイン形リチウム電池100C)の内部の画像を撮像する工程と、撮像された前記画像のデータを転送する工程と、前記画像のデータに基づいて、前記電池の状態をリアルタイムで判定し、前記判定の結果の制御信号を転送する工程と、前記制御信号に基づいて前記電池に対する充電及び放電の制御を行う工程と、を有する電池の充放電制御システム及び充放電制御方法を提供する。
上記構成により、全固体電池、液体系電池により構成される電池を非破壊で高解像度で実動作中のその場内部観察ができ、内部状況を判定して外部から制御を加えることができる。
さらに、画像取得部は、光源(例えば、後述の光源12)及び撮像素子(例えば、後述の撮像素子11)を有し、前記光源及び前記撮像素子は、前記隔離部材における光を透過可能な部分(例えば、後述の光学先端カバー152)に覆われている。
本実施形態では、充放電制御システム1は、円筒形リチウムイオン電池100の内部に配置され円筒形リチウムイオン電池100の内部の画像を撮像する画像取得部10と、画像取得部10により撮像された画像のデータ及び制御信号を転送する転送部30と、転送部30からの画像のデータに基づいて円筒形リチウムイオン電池100に対する充電及び放電の制御を行う制御部(制御回路14、ECU50)と、を備える。
また、本実施形態では、充放電制御方法は、電池の内部の画像を撮像する工程と、撮像された画像のデータを転送する工程と、画像のデータに基づいて、電池の状態をリアルタイムで判定し、判定の結果の制御信号を転送する工程と、制御信号に基づいて電池に対する充電及び放電の制御を行う工程と、を有する。
これにより、円筒形リチウムイオン電池100を非破壊で高解像度で実動作中のその場内部観察ができ、内部状況を判定して外部から制御を加えることができる。
ECUには、事前に、画像を含む各種データから構築された電池の状態推定モデルが格納されており、実車動作中の取得したデータをもとに、そのモデル、あるいは外部のモデルが進化し精度向上する仕組みがあってもよい(上述)。これにより、電池パック、電池毎の劣化状態に合わせたより精度の高い制御が実現できる。
負極106Cは、負極封口板101Cのフラット部110Cの内面に圧着されており、負極106Cにはセパレータ104C、正極105Cが載置され、電解液が含浸されている。また、負極封口板101Cの周縁部には、ガスケット103Cを装着されており、負極封口板101Cと正極ケース102Cとが組合されている。
また、液体系電池には、電解液の一部あるいは全部がゲル状の、いわゆるポリマー電池も含まれてもよい。
また、ケース15を構成する隔離部材は薄膜により構成されたが、これに限定されない。隔離部材は、例えば、イオン液体層により構成されてもよい。
10…画像取得部
11…撮像素子
12…光源
14…制御回路(制御部、電池内制御部)
15…ケース
30…転送部
31…電波送受信部
50…ECU(制御部、電池外制御部)
100…円筒形リチウムイオン電池
100A…渦巻式電極の角型電池
100B…角型リチウムイオン二次電池
100C…コイン形リチウム電池
120…円筒形缶(筐体)
140…キャップ組立体(筐体)
Claims (10)
- 全固体電池により構成される電池の内部に配置され前記電池の内部の画像を撮像する画像取得部と、
前記画像取得部により撮像された画像のデータ及び制御信号を転送する転送部と、
前記転送部からの前記画像のデータに基づいて前記電池に対する充電及び放電の制御を行う制御部と、を備える電池の充放電制御システム。 - 液体系電池により構成される電池の内部に配置され前記電池の内部の画像を撮像する画像取得部と、
前記画像取得部により撮像された画像のデータ及び制御信号を転送する転送部と、
前記転送部からの前記画像のデータに基づいて前記電池に対する充電及び放電の制御を行う制御部と、を備える電池の充放電制御システム。 - 前記画像取得部及び前記転送部は、前記電池を構成する電解液に対する耐性を有し且つ伝送電波を透過可能な隔離部材により、前記電池の内部において前記電解液から隔離されている請求項2に記載の電池の充放電制御システム。
- 前記画像取得部は、光源及び撮像素子を有し、
前記光源及び前記撮像素子は、前記隔離部材における伝送電波を透過可能な部分に覆われている請求項3に記載の充放電制御システム。 - 前記隔離部材の全体は、薄膜ラミネートにより覆われ、前記伝送電波を透過可能な部分には、ポリエチレン、変性ポリエチレン、ポリプロピレン、変性ポリプロピレン、アイオノマーのうちのいずれかが配置されて構成され、
前記電池に電気的に接続される接続部分は、熱溶着で接続されて前記隔離部材よりも前記光源及び前記撮像素子の側への前記電解液の侵入を防ぐ構造により構成される請求項4に記載の電池の充放電制御システム。 - 前記画像取得部、前記転送部、及び、前記制御部には、前記電池から電力が供給される請求項1~請求項5のいずれかに記載の電池の充放電制御システム。
- 前記転送部は、電池の内部に配置された電池内送受信部を有し、
前記電池は、厚肉部と薄肉部とを有する筐体を有し、
前記電池内送受信部は、前記薄肉部の近傍に配置される請求項1~請求項6のいずれかに記載の電池の充放電制御システム。 - 前記制御部は、前記電池の内部に配置された電池内制御部と、前記電池の外部に配置された電池外制御部とを有し、
前記転送部は、前記画像取得部により撮像された画像のデータを前記電池の外部に転送し、前記電池外制御部では、前記画像のデータに基づき判定した制御信号を、前記転送部を用いて前記電池の内部に転送し、前記制御信号を受け取った前記電池内制御部は、前記制御信号に基づいて前記電池に対する充電及び放電の制御を行う請求項1~請求項7のいずれかに記載の電池の充放電制御システム。 - 電池の内部において前記電池の内部の画像を撮像する工程と、
前記電池の内部において前記電池の内部の画像を撮像する工程において撮像された前記画像のデータを転送する工程と、
前記画像のデータを転送する工程において転送された前記画像のデータに基づいて、前記電池の状態をリアルタイムで判定し、前記判定の結果の制御信号を転送する工程と、
前記判定の結果の制御信号を転送する工程において転送された前記制御信号に基づいて前記電池に対する充電及び放電の制御を行う工程と、を有する電池の充電方法。 - 前記判定は、車両のECUにより行われる請求項9に記載の電池の充電方法。
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WO2008016152A1 (en) | 2006-08-04 | 2008-02-07 | Gs Yuasa Corporation | Lead acid battery |
JP2015230208A (ja) | 2014-06-04 | 2015-12-21 | 株式会社東海理化電機製作所 | バッテリ状態測定装置及びそれを備えたバッテリ |
JP2016024845A (ja) | 2014-07-16 | 2016-02-08 | 株式会社東海理化電機製作所 | バッテリ監視装置 |
JP2016126943A (ja) | 2015-01-06 | 2016-07-11 | 株式会社日立製作所 | 蓄電装置および蓄電システム |
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WO2008016152A1 (en) | 2006-08-04 | 2008-02-07 | Gs Yuasa Corporation | Lead acid battery |
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