JP2021520027A - 加熱によって支援されたバッテリ充電のシステムおよび方法 - Google Patents
加熱によって支援されたバッテリ充電のシステムおよび方法 Download PDFInfo
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- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/443—Methods for charging or discharging in response to temperature
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Abstract
Description
本出願は、2018年4月16日に出願された米国特許仮出願第62/658,176号明細書の利益を主張するものであり、その開示全体が参照により本明細書に組み込まれる。
24 スイッチ−ヒータ組立体
26 加熱要素
28 スイッチ
30 外部充電器、外部バッテリ充電器または外部電源
Claims (20)
- バッテリを充電するための充電方法であって、前記充電方法は、
バッテリセルが所定の充電温度(T2)未満である場合、少なくとも5℃/分の速度で前記バッテリセルを加熱することを含む第1の動作と、
前記バッテリセルがT2以上である場合、充電器で前記バッテリセルを充電することを含む第2の動作と
を含む、充電方法。 - 前記第1の動作が、前記バッテリのバッテリセルと熱接触する加熱要素に対し、前記充電器により電力を供給することによって、前記バッテリセルを加熱することを含む、請求項1に記載の充電方法。
- 前記第1の動作が、定電流、定電圧、定電力または可変電力で、前記充電器により前記加熱要素に電力を供給することによって、前記バッテリセルを加熱することを含む、請求項2に記載の充電方法。
- 前記第1の動作が、少なくとも10℃/分の速度で前記バッテリを加熱することを含む、請求項1に記載の充電方法。
- T2が少なくとも40℃である、請求項1から4のいずれか一項に記載の充電方法。
- 前記第2の動作が、電圧上限に達するまで定電流で、続いて、所定の電流が達せられるまでセル電圧の前記上限での定電圧で、外部電源により前記バッテリを充電することを含む、請求項1から4のいずれか一項に記載の充電方法。
- 前記充電方法が、前記バッテリセルの温度を決定することと、前記温度がT2未満である場合、前記バッテリセルを加熱するために前記第1の動作を開始することと、前記温度がT2以上である場合、前記バッテリセルを充電することとをさらに含む、請求項1から4のいずれか一項に記載の充電方法。
- 統合型加熱バッテリシステムであって、
少なくとも1つのバッテリセルを含む再充電可能バッテリと、
前記少なくとも1つのバッテリセルと熱接触する加熱要素であって、スイッチ−ヒータ組立体を形成するために、スイッチに直列に電気的に接続された加熱要素とを含み、
前記スイッチ−ヒータ組立体が、前記バッテリに並列に電気的に接続されて、バッテリ−スイッチ−ヒータ回路を形成し、
前記バッテリ−スイッチ−ヒータ回路が、充電器に直接電気的に連結されるように構成され、
前記加熱要素が、主として、前記充電器によって電力を供給され、そして、前記加熱要素が、主として、前記充電器によって電力を供給されるとき、前記少なくとも1つのバッテリセルに電気的に接続されている、統合型加熱バッテリシステム。 - 前記少なくとも1つのバッテリセルが、リチウム金属を含むアノードを含む、請求項8に記載の統合型加熱バッテリシステム。
- 前記少なくとも1つのバッテリセルが、ケイ素またはケイ素−炭素複合材料を含むアノードを含む、請求項8に記載の統合型加熱バッテリシステム。
- 前記少なくとも1つのバッテリセルが、アノードおよびカソードを含み、前記アノードが、リチウム金属を含み、前記カソードが、空気で動作するように構成される、請求項8に記載の統合型加熱バッテリシステム。
- 前記少なくとも1つのバッテリセルが固体電解質を含む、請求項8から11のいずれか一項に記載の統合型加熱バッテリシステム。
- 前記少なくとも1つのバッテリセルが、1リットル当たり4モルを超える濃度の塩を含有する電解質を含む、請求項8から11のいずれか一項に記載の統合型加熱バッテリシステム。
- 前記加熱要素が、前記少なくとも1つのバッテリセルの内部に配置されるか、または前記少なくとも1つのバッテリセルの外面に接触して配置される、請求項8から11のいずれか一項に記載の統合型加熱バッテリシステム。
- 前記加熱要素が、抵抗体シートを含み、前記抵抗体シートが、2つの主表面と、1〜200マイクロメートルの厚さとを有する、請求項8から11のいずれか一項に記載の統合型加熱バッテリシステム。
- 前記抵抗体シートが、グラファイト、高配向パイログラファイト(HOPG)、ステンレス鋼、ニッケル、クロム、ニクロム、銅、アルミニウム、チタン、またはそれらの組合せを含む、請求項15に記載の統合型加熱バッテリシステム。
- 前記スイッチが、電気機械リレーおよび温度コントローラ、温度センサをもつ固体リレー、温度センサをもつパワーMOSFET、温度センサをもつ大電流スイッチ、絶縁ゲートバイポーラトランジスタ、またはバイメタルスイッチを含む、請求項8から11のいずれか一項に記載の統合型加熱バッテリシステム。
- 前記スイッチが、前記少なくとも1つのバッテリセルの内部に配置される、請求項8から11のいずれか一項に記載の統合型加熱バッテリシステム。
- 前記スイッチが、充電動作中に時間とともにパルスを発するように構成される、請求項8から11のいずれか一項に記載の統合型加熱バッテリシステム。
- 前記加熱要素と前記スイッチの両方が、前記バッテリセルの内部に配置される、請求項8から11のいずれか一項に記載の統合型加熱バッテリシステム。
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