JP5760138B1 - 電気化学エネルギーデバイスの接続部材の製造方法、当該製造方法により製造された接続部材および当該接続部材を備える電気化学エネルギーデバイス - Google Patents
電気化学エネルギーデバイスの接続部材の製造方法、当該製造方法により製造された接続部材および当該接続部材を備える電気化学エネルギーデバイス Download PDFInfo
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- JP5760138B1 JP5760138B1 JP2014240196A JP2014240196A JP5760138B1 JP 5760138 B1 JP5760138 B1 JP 5760138B1 JP 2014240196 A JP2014240196 A JP 2014240196A JP 2014240196 A JP2014240196 A JP 2014240196A JP 5760138 B1 JP5760138 B1 JP 5760138B1
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- UIERGBJEBXXIGO-UHFFFAOYSA-N thiamine mononitrate Chemical compound [O-][N+]([O-])=O.CC1=C(CCO)SC=[N+]1CC1=CN=C(C)N=C1N UIERGBJEBXXIGO-UHFFFAOYSA-N 0.000 description 1
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- 125000001391 thioamide group Chemical group 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
- Y02E60/13—Energy storage using capacitors
Landscapes
- Electroplating Methods And Accessories (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Electroplating And Plating Baths Therefor (AREA)
Abstract
Description
(1)電気化学エネルギーデバイスの接続部材の製造方法であって、前記電気化学エネルギーデバイスは、正極、負極、絶縁部材、および非水電解質を備えるデバイス本体と、ヒートシール層を有し当該ヒートシール層により前記デバイス本体を封止する外装体とを備え、前記接続部材は、前記ヒートシール層により挟持されるべき封止部、前記正極および前記負極の一方に対する接続用部分を有し前記外装体内に収容されるべき内設部、および前記封止部よりも外側に位置するべき外設部からなり、前記内設部は、前記接続部材の基材上に形成された表面処理層を備え、電解液可溶性Cr含有物質を含有する電解液内で、前記接続部材の基材を陰極電解して前記表面処理層を形成することを備え、前記表面処理層のCr含有量は15mg/m 2 以上であり、前記基材はアルミニウム系材料からなり、前記内設部の前記表面処理層からなる表面を測定対象として、電気化学インピーダンス法により複素インピーダンスを測定したときに、1Hzの条件で測定された前記複素インピーダンスの実部の値(単位:Ω)に対する、10mHzの条件で測定された前記複素インピーダンスの実部の値(単位:Ω)の比率である第一比率が0.1以下であることを特徴とする接続部材の製造方法。
タブの基材として45mm×70mm×厚さ400μmのアルミニウム材(A1050)を基材として用意した。25℃の脱脂液(ユケン工業社製「パクナエレクターFL」50g/LおよびNaOH50g/L含有)に基材を浸漬し、不溶性陽極(鉄板)を用いて、電流密度1ASDで10秒間陰極電解することにより脱脂を行った。脱脂後の基材を流水で洗浄した。
こうして、基材の全面に表面処理層を備えるタブを得た。
陰極電解の電流密度を0.5ASDとしたこと以外は、実施例1と同様の操作を行って、基材の全面に表面処理層を備えるタブを得た。
陰極電解の電流密度を0.6ASDとしたこと以外は、実施例1と同様の操作を行って、基材の全面に表面処理層を備えるタブを得た。
陰極電解の電流密度を0.7ASDとしたこと以外は、実施例1と同様の操作を行って、基材の全面に表面処理層を備えるタブを得た。
陰極電解の電流密度を0.3ASDとしたこと以外は、実施例1と同様の操作を行って、基材の全面に表面処理層を備えるタブを得た。
45mm×70mm×厚さ400μmのアルミニウム材(A1050)を用意した。25℃の脱脂液(ユケン工業社製「パクナエレクターFL」50g/LおよびNaOH50g/L含有)に基材を浸漬し、不溶性陽極(鉄板)を用いて、電流密度1ASDで10秒間陰極電解することにより脱脂を行った。脱脂後の基材を流水で洗浄し、圧縮空気で水切りを行った後、300秒間の熱風乾燥(温度:80℃)を行って、基材からなる比較用のタブを得た。
実施例1と同様に45mm×70mm×厚さ400μmのアルミニウム材(A1050)を用意した。25℃の脱脂液(ユケン工業社製「パクナエレクターFL」50g/LおよびNaOH50g/L含有)に基材を浸漬し、不溶性陽極(鉄板)を用いて、電流密度1ASDで10秒間陰極電解することにより脱脂を行った。脱脂後の基材を流水で洗浄した。得られた洗浄後の基材に対して特許文献1の実施例1と同様の処理を行って、基材とフェノール樹脂を含有する化成皮膜とからなる比較用のタブを得た。
実施例および比較例にて作製したタブのCr析出量を次の方法により測定した。硝酸水溶液(20%、25℃)中に、15分間タブを浸漬させて、基材上の表面処理層を、基材(アルミニウム材)ごと溶解させた。得られた硝酸水溶液中のCr量を、誘導結合プラズマ(ICP)発光分析装置(SIIナノテクノロジー社製「SPS5520」)を用いて測定し、得られた結果から、Cr析出量(単位:mg/m2)を算出した。
測定結果を表1に示す。
実施例1および3ならびに比較例1から3により作製したタブ(面積:300mm2)を、5質量%のNaCl水溶液(温度:25℃)中に浸漬して、白金電極(電極面積:300mm2)を対極として、印加電圧を20mVとして、電気化学インピーダンス法による複素インピーダンスの実部の測定を行った。測定装置は、Solartron Instruments Limited社製「ELECTROCHEMICAL MEASUREMENT UNIT SI 1280B」であった。周波数は10kHzから10mHzの範囲で掃引した。複素インピーダンスの実部の測定結果を表2および図1に示す。
Claims (7)
- 電気化学エネルギーデバイスの接続部材の製造方法であって、
前記電気化学エネルギーデバイスは、正極、負極、絶縁部材、および非水電解質を備えるデバイス本体と、ヒートシール層を有し当該ヒートシール層により前記デバイス本体を封止する外装体とを備え、
前記接続部材は、前記ヒートシール層により挟持されるべき封止部、前記正極および前記負極の一方に対する接続用部分を有し前記外装体内に収容されるべき内設部、および前記封止部よりも外側に位置するべき外設部からなり、
前記内設部は、前記接続部材の基材上に形成された表面処理層を備え、
電解液可溶性Cr含有物質を含有する電解液内で、前記接続部材の基材を陰極電解して前記表面処理層を形成することを備え、
前記表面処理層のCr含有量は15mg/m 2 以上であり、
前記基材はアルミニウム系材料からなり、前記内設部の前記表面処理層からなる表面を測定対象として、電気化学インピーダンス法により複素インピーダンスを測定したときに、1Hzの条件で測定された前記複素インピーダンスの実部の値(単位:Ω)に対する、10mHzの条件で測定された前記複素インピーダンスの実部の値(単位:Ω)の比率である第一比率が0.1以下であること
を特徴とする接続部材の製造方法。 - 前記表面処理層は六価クロムおよびフッ素含有物質を含有しない、請求項1に記載の接続部材の製造方法。
- 前記表面処理層は、有機系造膜性材料に由来する成分を含有しない、請求項1または2に記載の接続部材の製造方法。
- 前記接続部材の封止部および外接部の少なくとも一方も前記表面処理層を備える、請求項1から3のいずれか一項に記載の接続部材の製造方法。
- 請求項1から4のいずれか一項に記載される製造方法により製造された接続部材。
- 電気化学エネルギーデバイスであって、
正極、負極、絶縁部材、および非水電解質を備えるデバイス本体と、
ヒートシール層を有し当該ヒートシール層により前記デバイス本体を封止する外装体と、
請求項5に記載される接続部材とを備え、
前記接続部材は、前記封止部において前記ヒートシール層により挟持されること
を特徴とする電気化学エネルギーデバイス。 - 前記電気化学エネルギーデバイスは、二次電池または電気二重層コンデンサである、請求項6に記載の電気化学エネルギーデバイス。
Priority Applications (1)
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WO2022153399A1 (ja) * | 2021-01-13 | 2022-07-21 | 住友電気工業株式会社 | リード線、電力貯蔵デバイスおよびリード線の製造方法 |
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