ELECTROLYTIC COPPER FOIL, ELECTRODE, AND LITHIUM ION CELL INCLUDING THE SAME
To optimize charge/discharge cycle life performance of a lithium ion cell by effectively mitigating or suppressing the degree of warpage of an electrolytic copper foil to improve uniformity of an active material coating on the electrolytic copper foil.SOLUTION: The electrolytic copper foil comprisin...
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| creator | LAI YAO-SHENG LAI TINGUN CHOU JUIANG |
| description | To optimize charge/discharge cycle life performance of a lithium ion cell by effectively mitigating or suppressing the degree of warpage of an electrolytic copper foil to improve uniformity of an active material coating on the electrolytic copper foil.SOLUTION: The electrolytic copper foil comprising copper and chloride is analyzed by TOF-SIMS along its thickness direction to obtain a spectrum of a relative depth ratio as an X-axis and a relative intensity of chloride versus copper as a Y-axis. There is a chloride peak located between 20% and 80% of the relative depth ratio in the spectrum, and the chloride peak is characterized by a maximum relative intensity of chloride versus copper ranging from 0.77% to 5.13% and a full width at half maximum ranging from 2.31% to 5.78%. With above characteristics, the electrolytic copper foil has low density of copper particles, low degree of warpage, and good coating uniformity of an active material applied thereon, thereby optimizing the efficiency of a lithium-ion cell comprising the electrolytic copper foil.SELECTED DRAWING: Figure 1
【課題】電解銅箔の反りの程度を効果的に軽減または抑制して、電解銅箔上の活物質コーティングの均一性を改善することにより、リチウムイオン電池の充放電サイクル寿命性能を最適化する。【解決手段】銅および塩化物を含む電解銅箔は、その厚さ方向に沿ったＴＯＦ−ＳＩＭＳによる分析により、Ｘ軸として相対深度比およびＹ軸として塩化物対銅の相対強度を示すスペクトルが得られる。該スペクトルの２０％〜８０％の相対深度比の間に位置する塩化物ピークが存在し、塩化物ピークは、０．７７％〜５．１３％の範囲の塩化物対銅の最大相対強度および２．３１％〜５．７８％の範囲の半値全幅を特徴とする。上記特性により、電解銅箔は、低密度の銅粒子、低い反りの程度、およびその上に適用される活物質の良好なコーティング均一性を有し、それにより、該電解銅箔を含むリチウムイオン電池の効率を最適化する。【選択図】図１ |
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| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_JP2021116472A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>JP2021116472A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_JP2021116472A3</originalsourceid><addsrcrecordid>eNrjZPBx9XF1Dgny94kM8XRWcPYPCHANUnDz9_TRUYDKuLjqKDj6uSj4eIZ4eIb6Knj6-yk4u_r4KHj6OfuEunj6uSuEeLgqBDv6uvIwsKYl5hSn8kJpbgYlN9cQZw_d1IL8-NTigsTk1LzUknivACMDI0NDQzMTcyNHY6IUAQDmsS3p</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>ELECTROLYTIC COPPER FOIL, ELECTRODE, AND LITHIUM ION CELL INCLUDING THE SAME</title><source>esp@cenet</source><creator>LAI YAO-SHENG ; LAI TINGUN ; CHOU JUIANG</creator><creatorcontrib>LAI YAO-SHENG ; LAI TINGUN ; CHOU JUIANG</creatorcontrib><description>To optimize charge/discharge cycle life performance of a lithium ion cell by effectively mitigating or suppressing the degree of warpage of an electrolytic copper foil to improve uniformity of an active material coating on the electrolytic copper foil.SOLUTION: The electrolytic copper foil comprising copper and chloride is analyzed by TOF-SIMS along its thickness direction to obtain a spectrum of a relative depth ratio as an X-axis and a relative intensity of chloride versus copper as a Y-axis. There is a chloride peak located between 20% and 80% of the relative depth ratio in the spectrum, and the chloride peak is characterized by a maximum relative intensity of chloride versus copper ranging from 0.77% to 5.13% and a full width at half maximum ranging from 2.31% to 5.78%. With above characteristics, the electrolytic copper foil has low density of copper particles, low degree of warpage, and good coating uniformity of an active material applied thereon, thereby optimizing the efficiency of a lithium-ion cell comprising the electrolytic copper foil.SELECTED DRAWING: Figure 1
【課題】電解銅箔の反りの程度を効果的に軽減または抑制して、電解銅箔上の活物質コーティングの均一性を改善することにより、リチウムイオン電池の充放電サイクル寿命性能を最適化する。【解決手段】銅および塩化物を含む電解銅箔は、その厚さ方向に沿ったＴＯＦ−ＳＩＭＳによる分析により、Ｘ軸として相対深度比およびＹ軸として塩化物対銅の相対強度を示すスペクトルが得られる。該スペクトルの２０％〜８０％の相対深度比の間に位置する塩化物ピークが存在し、塩化物ピークは、０．７７％〜５．１３％の範囲の塩化物対銅の最大相対強度および２．３１％〜５．７８％の範囲の半値全幅を特徴とする。上記特性により、電解銅箔は、低密度の銅粒子、低い反りの程度、およびその上に適用される活物質の良好なコーティング均一性を有し、それにより、該電解銅箔を含むリチウムイオン電池の効率を最適化する。【選択図】図１</description><language>eng ; jpn</language><subject>APPARATUS THEREFOR ; BASIC ELECTRIC ELEMENTS ; CHEMISTRY ; ELECTRICITY ; ELECTROFORMING ; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES ; METALLURGY ; PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS ; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</subject><creationdate>2021</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20210810&DB=EPODOC&CC=JP&NR=2021116472A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20210810&DB=EPODOC&CC=JP&NR=2021116472A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LAI YAO-SHENG</creatorcontrib><creatorcontrib>LAI TINGUN</creatorcontrib><creatorcontrib>CHOU JUIANG</creatorcontrib><title>ELECTROLYTIC COPPER FOIL, ELECTRODE, AND LITHIUM ION CELL INCLUDING THE SAME</title><description>To optimize charge/discharge cycle life performance of a lithium ion cell by effectively mitigating or suppressing the degree of warpage of an electrolytic copper foil to improve uniformity of an active material coating on the electrolytic copper foil.SOLUTION: The electrolytic copper foil comprising copper and chloride is analyzed by TOF-SIMS along its thickness direction to obtain a spectrum of a relative depth ratio as an X-axis and a relative intensity of chloride versus copper as a Y-axis. There is a chloride peak located between 20% and 80% of the relative depth ratio in the spectrum, and the chloride peak is characterized by a maximum relative intensity of chloride versus copper ranging from 0.77% to 5.13% and a full width at half maximum ranging from 2.31% to 5.78%. With above characteristics, the electrolytic copper foil has low density of copper particles, low degree of warpage, and good coating uniformity of an active material applied thereon, thereby optimizing the efficiency of a lithium-ion cell comprising the electrolytic copper foil.SELECTED DRAWING: Figure 1
【課題】電解銅箔の反りの程度を効果的に軽減または抑制して、電解銅箔上の活物質コーティングの均一性を改善することにより、リチウムイオン電池の充放電サイクル寿命性能を最適化する。【解決手段】銅および塩化物を含む電解銅箔は、その厚さ方向に沿ったＴＯＦ−ＳＩＭＳによる分析により、Ｘ軸として相対深度比およびＹ軸として塩化物対銅の相対強度を示すスペクトルが得られる。該スペクトルの２０％〜８０％の相対深度比の間に位置する塩化物ピークが存在し、塩化物ピークは、０．７７％〜５．１３％の範囲の塩化物対銅の最大相対強度および２．３１％〜５．７８％の範囲の半値全幅を特徴とする。上記特性により、電解銅箔は、低密度の銅粒子、低い反りの程度、およびその上に適用される活物質の良好なコーティング均一性を有し、それにより、該電解銅箔を含むリチウムイオン電池の効率を最適化する。【選択図】図１</description><subject>APPARATUS THEREFOR</subject><subject>BASIC ELECTRIC ELEMENTS</subject><subject>CHEMISTRY</subject><subject>ELECTRICITY</subject><subject>ELECTROFORMING</subject><subject>ELECTROLYTIC OR ELECTROPHORETIC PROCESSES</subject><subject>METALLURGY</subject><subject>PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS</subject><subject>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2021</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZPBx9XF1Dgny94kM8XRWcPYPCHANUnDz9_TRUYDKuLjqKDj6uSj4eIZ4eIb6Knj6-yk4u_r4KHj6OfuEunj6uSuEeLgqBDv6uvIwsKYl5hSn8kJpbgYlN9cQZw_d1IL8-NTigsTk1LzUknivACMDI0NDQzMTcyNHY6IUAQDmsS3p</recordid><startdate>20210810</startdate><enddate>20210810</enddate><creator>LAI YAO-SHENG</creator><creator>LAI TINGUN</creator><creator>CHOU JUIANG</creator><scope>EVB</scope></search><sort><creationdate>20210810</creationdate><title>ELECTROLYTIC COPPER FOIL, ELECTRODE, AND LITHIUM ION CELL INCLUDING THE SAME</title><author>LAI YAO-SHENG ; LAI TINGUN ; CHOU JUIANG</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2021116472A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2021</creationdate><topic>APPARATUS THEREFOR</topic><topic>BASIC ELECTRIC ELEMENTS</topic><topic>CHEMISTRY</topic><topic>ELECTRICITY</topic><topic>ELECTROFORMING</topic><topic>ELECTROLYTIC OR ELECTROPHORETIC PROCESSES</topic><topic>METALLURGY</topic><topic>PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS</topic><topic>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</topic><toplevel>online_resources</toplevel><creatorcontrib>LAI YAO-SHENG</creatorcontrib><creatorcontrib>LAI TINGUN</creatorcontrib><creatorcontrib>CHOU JUIANG</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>LAI YAO-SHENG</au><au>LAI TINGUN</au><au>CHOU JUIANG</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>ELECTROLYTIC COPPER FOIL, ELECTRODE, AND LITHIUM ION CELL INCLUDING THE SAME</title><date>2021-08-10</date><risdate>2021</risdate><abstract>To optimize charge/discharge cycle life performance of a lithium ion cell by effectively mitigating or suppressing the degree of warpage of an electrolytic copper foil to improve uniformity of an active material coating on the electrolytic copper foil.SOLUTION: The electrolytic copper foil comprising copper and chloride is analyzed by TOF-SIMS along its thickness direction to obtain a spectrum of a relative depth ratio as an X-axis and a relative intensity of chloride versus copper as a Y-axis. There is a chloride peak located between 20% and 80% of the relative depth ratio in the spectrum, and the chloride peak is characterized by a maximum relative intensity of chloride versus copper ranging from 0.77% to 5.13% and a full width at half maximum ranging from 2.31% to 5.78%. With above characteristics, the electrolytic copper foil has low density of copper particles, low degree of warpage, and good coating uniformity of an active material applied thereon, thereby optimizing the efficiency of a lithium-ion cell comprising the electrolytic copper foil.SELECTED DRAWING: Figure 1
【課題】電解銅箔の反りの程度を効果的に軽減または抑制して、電解銅箔上の活物質コーティングの均一性を改善することにより、リチウムイオン電池の充放電サイクル寿命性能を最適化する。【解決手段】銅および塩化物を含む電解銅箔は、その厚さ方向に沿ったＴＯＦ−ＳＩＭＳによる分析により、Ｘ軸として相対深度比およびＹ軸として塩化物対銅の相対強度を示すスペクトルが得られる。該スペクトルの２０％〜８０％の相対深度比の間に位置する塩化物ピークが存在し、塩化物ピークは、０．７７％〜５．１３％の範囲の塩化物対銅の最大相対強度および２．３１％〜５．７８％の範囲の半値全幅を特徴とする。上記特性により、電解銅箔は、低密度の銅粒子、低い反りの程度、およびその上に適用される活物質の良好なコーティング均一性を有し、それにより、該電解銅箔を含むリチウムイオン電池の効率を最適化する。【選択図】図１</abstract><oa>free_for_read</oa></addata></record> |
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| title | ELECTROLYTIC COPPER FOIL, ELECTRODE, AND LITHIUM ION CELL INCLUDING THE SAME |
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