JP7393213B2 - 緩衝材及び緩衝材の製造方法 - Google Patents
緩衝材及び緩衝材の製造方法 Download PDFInfo
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
- Polyurethanes Or Polyureas (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Description
図1(A)に示されるように、本実施形態の緩衝材10は、例えば平面視略長方形のシート状をなし、多孔質体からなる緩衝層の表裏に金属層21が積層された積層構造となっている。
を促進して炭酸ガスを発生させる触媒である。泡化触媒は限定されるものではなく、例えば、トリエチルアミン、ジメチルアミノエトキシエタノール、N,N,N'-トリメチルアミノエチル-エタノールアミン、N,N,N',N",N"-ペンタメチルジエチレントリアミン、ビス(2-ジメチルアミノエチル)エーテル等のアミン系触媒を挙げることができる。
(1)上記第1実施形態の緩衝材10には、金属層21が設けられていたが、図8(A)及び図8(B)に示す緩衝材10Vのように、金属層21が設けられていなくてもよい。緩衝材10Vは、発泡樹脂層11からなり、高密度層12(スキン層14又は溶融皮膜層15)が最外層となっている。この構成によっても、高密度層12が内層部13よりも高密度となっていることで、単電池51と緩衝材10の密着性を向上させることが可能となる。この緩衝材10Vも、厚み方向(即ち、単電池51同士に挟まれる方向)と直交する方向に通気性を有するので、単電池51の温度の調整が容易となる。なお、緩衝材10Vは、上記実施形態の緩衝材10の発泡樹脂層11(発泡シート11S)と同様にして製造することができる。
11 発泡樹脂層
12 高密度層
13 内層部
14 スキン層
15 溶融皮膜層
21 金属層
50 組電池
51 単電池
Claims (7)
- 組電池を構成する単電池の間に挟まれるシート状の緩衝材であって、
厚み方向と直交する方向に通気性を有し、
連続気泡構造をなし、厚み方向と直交する方向に通気性を有する発泡樹脂層を含み、
前記発泡樹脂層の表裏の最外部には、前記最外部より内側の内層部に比べて密度が高くなった高密度層が形成されている、緩衝材。 - 表裏の少なくとも一方には、前記高密度層上に金属層が積層されている、請求項1に記載の緩衝材。
- 前記高密度層は、スキン層又は溶融皮膜層である、請求項1又は2に記載の緩衝材。
- 前記発泡樹脂層は、前記スキン層を表裏に有し、外周部に切断面を有するモールド成形品からなる、請求項3に記載の緩衝材。
- 前記発泡樹脂層の前記内層部では、密度が30~70kg/m 3 、セル数が4~30個/25mm、熱伝導率が0.039~0.050W/m・Kとなっている、請求項1から4の何れか1の請求項に記載の緩衝材。
- 組電池を構成する単電池の間に挟まれるシート状の緩衝材であって、
厚み方向と直交する方向に通気性を有し、
前記単電池のうち前記緩衝材との対向面に形成された突部又は凹部に対応した形状となった対向凹部又は対向突部を有する、緩衝材。 - 請求項4に記載の緩衝材を製造する製造方法であって、
前記モールド成形品のシートの表裏の前記スキン層の少なくとも一部を残しておくと共に、前記シートの外周部のスキン層を切除して、厚み方向と直交する方向に通気性を有する前記発泡樹脂層を形成する、緩衝材の製造方法。
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WO2022118974A1 (ja) * | 2020-12-03 | 2022-06-09 | 日本発條株式会社 | 電池セル用クッション材及び電池 |
CN113861921A (zh) * | 2021-09-03 | 2021-12-31 | 惠州锂威新能源科技有限公司 | 一种聚氨酯发泡胶及其制备方法及应用、软包锂离子电池 |
CN114851460B (zh) * | 2022-04-25 | 2023-06-20 | 蜂巢能源科技股份有限公司 | 渐变弹性材料及其生产模具和生产方法以及方型电池 |
WO2024101395A1 (ja) * | 2022-11-08 | 2024-05-16 | ヤマウチ株式会社 | 電池用緩衝材および電池 |
Citations (2)
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JP2013510411A (ja) | 2009-11-11 | 2013-03-21 | カール・フロイデンベルク・カー・ゲー | 電気化学電池の温度調整を行うための機械的柔軟性と多孔性を有する補償材 |
JP2019194321A (ja) | 2018-04-27 | 2019-11-07 | 株式会社イノアックコーポレーション | ポリウレタンフォームとその製造方法 |
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JP2013510411A (ja) | 2009-11-11 | 2013-03-21 | カール・フロイデンベルク・カー・ゲー | 電気化学電池の温度調整を行うための機械的柔軟性と多孔性を有する補償材 |
JP2019194321A (ja) | 2018-04-27 | 2019-11-07 | 株式会社イノアックコーポレーション | ポリウレタンフォームとその製造方法 |
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