JP7348145B2 - バッテリー熱交換構造 - Google Patents
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- JP7348145B2 JP7348145B2 JP2020119464A JP2020119464A JP7348145B2 JP 7348145 B2 JP7348145 B2 JP 7348145B2 JP 2020119464 A JP2020119464 A JP 2020119464A JP 2020119464 A JP2020119464 A JP 2020119464A JP 7348145 B2 JP7348145 B2 JP 7348145B2
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- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
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- H01M10/65—Means for temperature control structurally associated with the cells
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- H01M10/6555—Rods or plates arranged between the cells
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- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
- H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
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- H—ELECTRICITY
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- H01M10/6567—Liquids
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- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
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- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6569—Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
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- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
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Description
これによれば、所要の電池セルの側面に熱交換パネルの熱交換面を沿わせるようにして密接させることにより、熱交換パネル内の潜熱蓄熱材と電池セルとの間と、熱交換パネルを環流する冷媒と電池セルとの間で、高い熱交換効率で熱交換を行うことができる。更に、低温時には、潜熱蓄熱材の相変化による放熱との熱交換により、電池セルの過剰な温度低下を抑制することができ、出力電圧の低下や放電容量の低下が生じて一時的にバッテリー性能が低下することを防止できる。また、高温時には、熱交換パネルを環流する冷媒との熱交換により、電池セルの過剰な温度上昇を抑制することができ、バッテリー性能の恒久的な劣化、寿命の短命化を防止することができる。即ち、バッテリーの温度を適温範囲に制御することができる。
これによれば、熱交換パネルの熱交換面に対し、例えば熱伝導率が冷媒より低い潜熱蓄熱材等の潜熱蓄熱材の配置に対応する領域をより平準化して分布させることができると共に、冷媒の環流に対応する領域をより平準化して分布させることができ、低温時に過剰な温度低下を抑制する熱交換と、高温時に過剰な温度上昇を抑制する熱交換の双方をより確実に行うことができる。従って、バッテリーの温度を適温範囲により確実に制御することができる。また、潜熱蓄熱材がより平準化した分布で広範囲に或いは複数領域に配置されることになるから、例えば熱伝導率に劣る潜熱蓄熱材を用いた場合にも、潜熱蓄熱材の能力を最大限発揮させることができる。
これによれば、熱交換パネルと電池セルを並置方向に圧縮して押し当てるように弾性的に付勢することにより、熱交換パネル内の潜熱蓄熱材と電池セルとの間の熱交換効率と、熱交換パネルを環流する冷媒と電池セルとの間の熱交換効率を一層高めることができると共に、これらの熱交換の安定性を高めることができる。また、熱交換パネルと電池セルを並置方向に弾性的に付勢することにより、バッテリーの熱膨張や温度低下時の収縮に追随して、熱交換パネルと電池セルを並置方向に押し当てる状態を確保することができる。また、熱交換パネルと電池セルの並置方向における弾性的な付勢でバッテリーの熱膨張時の膨張量を吸収し、熱交換構造の内圧上昇による破損を防止し、安全性を向上することができる。
これによれば、バッテリー体を断熱容器に収容することにより、バッテリーに対する外部環境の温度の影響を低減し、外部環境が低温時に対応可能な低温の温度レベルと外部環境が高温時に対応可能な高温の温度レベルの範囲を拡張することができ、バッテリーの温度を適温範囲に制御可能な温度範囲を拡張することができる。また、バッテリー体に非常に高温時に出力規制する保護回路が搭載されている場合には、夏場の非常な高温時等に意図しない保護回路の作動を防止することができる。
これによれば、温度センサーの検出温度に応じて必要時に必要な温度の冷媒を環流させ、バッテリーの温度を低下させて適温範囲に自動的に制御することができる。
本発明による実施形態のバッテリー熱交換構造は、図1~図4に示すように、断熱容器本体2と断熱蓋体3で構成される二重壁の断熱容器1と、断熱容器1に収容されるバッテリー体4を備える。バッテリー体4では、後述するように、電池セル41と熱交換パネル42内の潜熱蓄熱材427との間、及び電池セル41と熱交換パネル42に流れる冷媒Fとの間で熱交換が行なわれる。
本明細書開示の発明は、発明として列記した各発明、実施形態の他に、適用可能な範囲で、これらの部分的な内容を本明細書開示の他の内容に変更して特定したもの、或いはこれらの内容に本明細書開示の他の内容を付加して特定したもの、或いはこれらの部分的な内容を部分的な作用効果が得られる限度で削除して上位概念化して特定したものを包含する。そして、本明細書開示の発明には下記変形例や追記した内容も含まれる。
Claims (4)
- 電池セルの側面に熱交換パネルの熱交換面を沿わせるようにして前記電池セルと前記熱交換パネルが密接して並置され、
前記熱交換パネル内に、前記熱交換面に沿って冷媒を環流する流路を画定する流路壁が設けられ、
前記流路壁で囲まれる収容空間に冷媒供給時の冷媒の温度よりも低い温度で相変化する潜熱蓄熱材が充填されていると共に、
前記流路の分岐流路が3経路以上で形成され、
前記分岐流路のそれぞれが前記熱交換面に沿って冷媒を環流するように設けられ、
少なくとも、前記分岐流路相互の間毎に、前記潜熱蓄熱材が充填された前記収容空間が設けられていることを特徴とするバッテリー熱交換構造。 - 前記熱交換パネルと前記電池セルが並置される方向に圧縮されるように弾性的に付勢されて設けられていることを特徴とする請求項1記載のバッテリー熱交換構造。
- 前記電池セルと前記熱交換パネルで構成されるバッテリー体と、前記バッテリー体を支持する支持部が断熱容器に収容されていることを特徴とする請求項1又は2記載のバッテリー熱交換構造。
- 前記電池セルの温度を検出する温度センサーを前記電池セルに近接して設け、
前記温度センサーの検出温度に応じて冷媒制御部が所要温度の冷媒を供給することを特徴とする請求項1~3の何れかに記載のバッテリー熱交換構造。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020119464A JP7348145B2 (ja) | 2020-07-10 | 2020-07-10 | バッテリー熱交換構造 |
CN202180046382.XA CN115836430A (zh) | 2020-07-10 | 2021-06-10 | 蓄电池热交换构造 |
PCT/JP2021/022224 WO2022009603A1 (ja) | 2020-07-10 | 2021-06-10 | バッテリー熱交換構造 |
US18/015,184 US20230198048A1 (en) | 2020-07-10 | 2021-06-10 | Battery heat exchange structure |
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JP2020119464A JP7348145B2 (ja) | 2020-07-10 | 2020-07-10 | バッテリー熱交換構造 |
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JP2022016153A JP2022016153A (ja) | 2022-01-21 |
JP2022016153A5 JP2022016153A5 (ja) | 2023-06-19 |
JP7348145B2 true JP7348145B2 (ja) | 2023-09-20 |
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US (1) | US20230198048A1 (ja) |
JP (1) | JP7348145B2 (ja) |
CN (1) | CN115836430A (ja) |
WO (1) | WO2022009603A1 (ja) |
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CN114614141B (zh) * | 2022-02-24 | 2024-03-19 | 智己汽车科技有限公司 | 一种电池混合热交换装置及电池组 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013516742A (ja) | 2010-01-08 | 2013-05-13 | ダウ グローバル テクノロジーズ エルエルシー | 熱伝達流体と相変化材料の組み合わせによる電気化学セルの熱管理法 |
JP2013101926A (ja) | 2011-10-21 | 2013-05-23 | Avl North America Inc | バッテリー冷却板及び冷却装置 |
JP2014535140A (ja) | 2011-10-28 | 2014-12-25 | ニュークリアス サイエンティフィック, インコーポレイテッド | マルチセルバッテリアセンブリ |
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JP2559719Y2 (ja) * | 1993-03-29 | 1998-01-19 | 日本碍子株式会社 | 冷却機構付き単電池集合体 |
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- 2020-07-10 JP JP2020119464A patent/JP7348145B2/ja active Active
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2021
- 2021-06-10 US US18/015,184 patent/US20230198048A1/en active Pending
- 2021-06-10 WO PCT/JP2021/022224 patent/WO2022009603A1/ja active Application Filing
- 2021-06-10 CN CN202180046382.XA patent/CN115836430A/zh active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2013516742A (ja) | 2010-01-08 | 2013-05-13 | ダウ グローバル テクノロジーズ エルエルシー | 熱伝達流体と相変化材料の組み合わせによる電気化学セルの熱管理法 |
JP2013101926A (ja) | 2011-10-21 | 2013-05-23 | Avl North America Inc | バッテリー冷却板及び冷却装置 |
JP2014535140A (ja) | 2011-10-28 | 2014-12-25 | ニュークリアス サイエンティフィック, インコーポレイテッド | マルチセルバッテリアセンブリ |
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Publication number | Publication date |
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CN115836430A (zh) | 2023-03-21 |
WO2022009603A1 (ja) | 2022-01-13 |
US20230198048A1 (en) | 2023-06-22 |
JP2022016153A (ja) | 2022-01-21 |
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