JP2020126803A - 双極型二次電池用の樹脂集電体 - Google Patents
双極型二次電池用の樹脂集電体 Download PDFInfo
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 69
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 69
- 239000001301 oxygen Substances 0.000 claims abstract description 69
- 239000010949 copper Substances 0.000 claims description 19
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 14
- 229910052782 aluminium Inorganic materials 0.000 claims description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 14
- 229910052802 copper Inorganic materials 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 12
- 229910052759 nickel Inorganic materials 0.000 claims description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 7
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
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- 239000002033 PVDF binder Substances 0.000 description 2
- 229920002319 Poly(methyl acrylate) Polymers 0.000 description 2
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- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Chemical group 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical group OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical group C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- XKRFYHLGVUSROY-UHFFFAOYSA-N argon Substances [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical group NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 description 1
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- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
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- 239000011889 copper foil Substances 0.000 description 1
- JZCCFEFSEZPSOG-UHFFFAOYSA-L copper(II) sulfate pentahydrate Chemical compound O.O.O.O.O.[Cu+2].[O-]S([O-])(=O)=O JZCCFEFSEZPSOG-UHFFFAOYSA-L 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
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- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical group CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
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- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- ZRALSGWEFCBTJO-UHFFFAOYSA-N guanidine group Chemical group NC(=N)N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 1
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- 229910052742 iron Inorganic materials 0.000 description 1
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- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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- 150000002736 metal compounds Chemical class 0.000 description 1
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- 150000004767 nitrides Chemical class 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid group Chemical group C(C=1C(C(=O)O)=CC=CC1)(=O)O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
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- QAZLUNIWYYOJPC-UHFFFAOYSA-M sulfenamide Chemical group [Cl-].COC1=C(C)C=[N+]2C3=NC4=CC=C(OC)C=C4N3SCC2=C1C QAZLUNIWYYOJPC-UHFFFAOYSA-M 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
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- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea group Chemical group NC(=S)N UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 1
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical group CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 description 1
- 125000005590 trimellitic acid group Chemical group 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- 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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- Cell Electrode Carriers And Collectors (AREA)
Abstract
Description
PHI製X線電子分光分析装置(Quantum−2000)を用い、X線源Monocromated−Al−Kα線、光電子取り出し角度45°、加速電圧4kVのアルゴンイオンスパッタにて、測定エリア100μmφにおいて、樹脂集電体の金属層の深さ方向の金属原子、酸素原子の元素比を計測する。得られた元素比を積算することで、金属と酸素の原子比率を算出する。
樹脂集電体を直径11mmに打ち抜き、測定用サンプルとする。金属、半導体用電気抵抗測定装置(アドバンス理工株式会社製、TER−2000SS)を用い、樹脂集電体測定用サンプルの0.8MPa条件下の電気抵抗(貫通抵抗)値を測定する。なお、本発明は、上記したように金属層に含まれる酸素量を、大気雰囲気中での暴露時間による影響を受けないように金属層を高緻密化することにより調節(制御)してなる樹脂集電体である。そのため、上記試験片の抵抗測定は、大気雰囲気中で行うものとする。なお、後述する実施例・比較例では、金属層の緻密性を意図的に低くし、得られた樹脂集電体の酸素雰囲気での保持時間で酸素量を制御した樹脂集電体を用いて抵抗測定した。
1.BET比表面積の測定方法
導電材料のBET比表面積の測定方法は、「JIS Z 8830:2013 ガス吸着による粉体(固体)の比表面積測定方法」に準じて、BET比表面積として測定した。
PHI製X線電子分光分析装置を用い、各実施例及び比較例の樹脂集電体の金属層の深さ方向の金属原子、酸素原子の元素比を計測した。得られた元素比を積算することで、金属と酸素の原子比率を算出した。
各実施例及び比較例の樹脂集電体を直径11mmに打ち抜き、測定用試験片とする。金属、半導体用電気抵抗測定装置(アドバンス理工株式会社製、TER−2000SS)を用い、各樹脂集電体の0.8MPa条件下の電気抵抗(貫通抵抗)値を測定した。
(導電性樹脂層の作製)
2軸押出機にて、高分子化合物であるポリオレフィン75部、導電材料である導電性カーボンであるアセチレンブラック20部、及び導電材料用分散剤5部を180℃、100rpm、滞留時間5分の条件で溶融混練して樹脂混合物を得た。
この導電性樹脂層の一方の主面に、真空蒸着法により、アルミニウム(Al)又は銅(Cu)の金属層を厚さ50、100、200nmでそれぞれ形成して、金属層を片面に設けた樹脂集電体をそれぞれ得た。その後、得られた樹脂集電体を酸素ガスが封入された容器内に入れ、酸素雰囲気中の保持時間(1日間〜7日間)により、各実施例及び比較例の樹脂集電体の金属層に含まれる酸素量をそれぞれ制御した。
各実施例及び比較例の樹脂集電体の金属層に含まれる酸素量(at.%)を、上記2の方法によりそれぞれ測定した。得られた結果を下記表1に示す。
各実施例及び比較例の樹脂集電体の電気抵抗(貫通抵抗)を、上記3の方法によりそれぞれ測定した。得られた結果を下記表1に示す。
Claims (5)
- 導電性樹脂層と、
前記導電性樹脂層が有する2つの主面のうち、少なくとも一方の主面に設けられた金属層と、を備え、
前記金属層に含まれる酸素量が30at.%以下である、双極型二次電池用の樹脂集電体。 - 前記金属層の材質が、アルミニウム、銅、ニッケルおよびチタンよりなる群から選ばれてなる少なくとも1種である、請求項1に記載の樹脂集電体。
- 前記金属層に含まれる酸素量が、6at.%以上である、請求項1または2に記載の樹脂集電体。
- 前記金属層に含まれる酸素量が、6〜22at.%の範囲である、請求項1〜3のいずれか1項に記載の樹脂集電体。
- 前記集電体の厚さが、40〜200μmである、請求項1〜4のいずれかに記載の樹脂集電体。
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220209242A1 (en) * | 2020-12-24 | 2022-06-30 | Prime Planet Energy & Solutions, Inc. | Non-aqueous electrolyte secondary battery |
WO2023120732A1 (ja) * | 2021-12-24 | 2023-06-29 | Apb株式会社 | 電池モジュール |
JP7430665B2 (ja) | 2021-05-13 | 2024-02-13 | プライムプラネットエナジー&ソリューションズ株式会社 | 二次電池の集電体およびその製造方法、ならびに二次電池 |
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JPS54132178A (en) * | 1978-04-05 | 1979-10-13 | Nec Corp | Semiconductor device |
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2019
- 2019-02-06 JP JP2019019580A patent/JP2020126803A/ja active Pending
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Publication number | Priority date | Publication date | Assignee | Title |
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US20220209242A1 (en) * | 2020-12-24 | 2022-06-30 | Prime Planet Energy & Solutions, Inc. | Non-aqueous electrolyte secondary battery |
JP7430665B2 (ja) | 2021-05-13 | 2024-02-13 | プライムプラネットエナジー&ソリューションズ株式会社 | 二次電池の集電体およびその製造方法、ならびに二次電池 |
WO2023120732A1 (ja) * | 2021-12-24 | 2023-06-29 | Apb株式会社 | 電池モジュール |
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