JP2013541149A - リチウム電池用電極の印刷のための水性インク - Google Patents
リチウム電池用電極の印刷のための水性インク Download PDFInfo
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- JP2013541149A JP2013541149A JP2013528739A JP2013528739A JP2013541149A JP 2013541149 A JP2013541149 A JP 2013541149A JP 2013528739 A JP2013528739 A JP 2013528739A JP 2013528739 A JP2013528739 A JP 2013528739A JP 2013541149 A JP2013541149 A JP 2013541149A
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- ink
- printing
- water
- electrode
- aqueous ink
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- 238000007639 printing Methods 0.000 title claims abstract description 82
- 229910052744 lithium Inorganic materials 0.000 title claims description 18
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims description 17
- 229920001609 Poly(3,4-ethylenedioxythiophene) Polymers 0.000 claims abstract description 31
- 229920001940 conductive polymer Polymers 0.000 claims abstract description 22
- 238000007650 screen-printing Methods 0.000 claims abstract description 13
- 239000007772 electrode material Substances 0.000 claims abstract description 11
- 238000000151 deposition Methods 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 4
- 238000007641 inkjet printing Methods 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 229910010707 LiFePO 4 Inorganic materials 0.000 claims description 14
- 229920000642 polymer Polymers 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 6
- 239000011532 electronic conductor Substances 0.000 claims description 5
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 229910012851 LiCoO 2 Inorganic materials 0.000 claims description 2
- 229910013716 LiNi Inorganic materials 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims description 2
- 238000003490 calendering Methods 0.000 claims description 2
- 239000000976 ink Substances 0.000 description 96
- 229920001467 poly(styrenesulfonates) Polymers 0.000 description 38
- 229960002796 polystyrene sulfonate Drugs 0.000 description 25
- 239000011970 polystyrene sulfonate Substances 0.000 description 25
- 229910001416 lithium ion Inorganic materials 0.000 description 23
- 230000032683 aging Effects 0.000 description 17
- 239000011149 active material Substances 0.000 description 14
- 238000007774 anilox coating Methods 0.000 description 14
- 239000011230 binding agent Substances 0.000 description 14
- 230000001351 cycling effect Effects 0.000 description 11
- 239000000203 mixture Substances 0.000 description 11
- 238000011084 recovery Methods 0.000 description 10
- 239000012528 membrane Substances 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 6
- 239000002033 PVDF binder Substances 0.000 description 6
- 239000002322 conducting polymer Substances 0.000 description 6
- 239000004020 conductor Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- -1 lithium cations Chemical class 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000004372 Polyvinyl alcohol Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 239000008188 pellet Substances 0.000 description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 description 4
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 4
- 229910032387 LiCoO2 Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 229920000767 polyaniline Polymers 0.000 description 3
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000002174 Styrene-butadiene Substances 0.000 description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 2
- 239000002134 carbon nanofiber Substances 0.000 description 2
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- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 2
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- 239000006182 cathode active material Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 229920003063 hydroxymethyl cellulose Polymers 0.000 description 2
- 229940031574 hydroxymethyl cellulose Drugs 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229920006112 polar polymer Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000011115 styrene butadiene Substances 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920006373 Solef Polymers 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- SSGNKFCZBIQVEH-UHFFFAOYSA-N [O--].[O--].[O--].[V+5].[Ag+] Chemical compound [O--].[O--].[O--].[V+5].[Ag+] SSGNKFCZBIQVEH-UHFFFAOYSA-N 0.000 description 1
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000009831 deintercalation Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011262 electrochemically active material Substances 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000005325 percolation Methods 0.000 description 1
- 229920005596 polymer binder Polymers 0.000 description 1
- 239000002491 polymer binding agent Substances 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000128 polypyrrole Polymers 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- RAVDHKVWJUPFPT-UHFFFAOYSA-N silver;oxido(dioxo)vanadium Chemical compound [Ag+].[O-][V](=O)=O RAVDHKVWJUPFPT-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
Classifications
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Abstract
この水性インクは、少なくとも1つの活性電極材料と少なくとも1つの水溶性または水分散性導電性ポリマー、有利にはPEDOT/PSSを含む。
他の態様では、本発明は、有利にはインクジェット印刷、フレキソ印刷、輪転グラビア印刷によって、またはスクリーン印刷によって、集電体上に水性インクを堆積する段階、およびインクを乾燥する段階、を含む、電極製造方法も提供する。
Description
・第1金属集電体上に第1電極(正極または負極)を堆積する段階、
・第1電極上にポリマーまたはセラミックセパレータを堆積する段階、
・セパレータ上に第2電極(正極または負極、第1電極の反対側)を堆積する段階、
・第2集電体を取り付ける段階。
・有利にはインクジェット印刷、フレキソ印刷、輪転グラビア印刷によって、またはスクリーン印刷によって、集電体上に本発明による水性インクを堆積する段階、
・インクを乾燥する段階、
・任意に、集電体上にインクを堆積することによって形成された電極を圧縮またはカレンダリングする段階。
・非常に長い間低電流を提供することを可能にするエネルギー源であって、一般的には重量および体積あたりの容量が高いもの、
・やや短い時間高電流を提供することを可能にする発電源であって、一般的には重量および体積あたりの容量が低いもの、
・長時間高電流(もしもそうでなければ低電流)を提供することを可能にする高容量発電源であって、一般的には重量および体積あたりの容量が高いもの。
この実施例は図5に説明される。
この例において、使用される活性材料は、Pulead Technology Industry社のカーボンLiFePO4である。使用される電子伝導性ポリマーは、H.C.Starck Clevios GmbHから、Clevios S V3という商品名で販売される、さらなるバインダーを含むPEDOT−PSS水分散体の高粘度グレードである(印刷されたフィルムの抵抗は約700Ω/sq、周囲温度での粘度は60dPa.s、測定された乾燥抽出物は6.5%)。
正電極はPulead LiFePO4を93.6重量部、PEDOT−PSSを6.4重量部混合することによって得られる。その後純水、すなわち脱イオン水が混合物に加えられ、45.1重量%の乾燥抽出物を得る。
その後ボタンセルは、2Vから4.2Vの間様々な比率で様々な充電・放電サイクルを受ける:10 C/20−D/20サイクル;10 C/10−D/10サイクル;10 C/5−D/5サイクル;10 C/5−D/2サイクル;10 C/5−Dサイクル;10 C/5−2Dサイクル;10 C/5−5Dサイクル;そして100サイクルを超えるC/10−D/10サイクルエージング。
この実施例において、使用される処方および電極の製造条件およびボタンセルの製造条件は実施例1に記載されるものと同じであり、唯一の相違は電極に与えられる圧縮が1トン(すなわち、0.65T/cm2)であることである。
電極およびボタンセルの実施形態は、表1のパラメータに従って、実施例1において記載されたものと同じである。
電極およびボタンセルの実施形態は、これ以降表1のパラメータに従って、実施例1において記載されたものと同じである。
・Pulead LiFePO4を82重量部、
・Super P カーボンを4重量部、
・VGCFカーボンファイバ(「気相成長カーボンファイバ」)を6重量部、
・N−メチルピロリドンNMP中に12重量%で可溶化されたポリフッ化ビニリデンPVDF(Solvayグレード、SOLEF(登録商標)6020)を8重量部。
電極およびボタンセルの実施形態は、表1のパラメータに従って、実施例1において記載されたものと同じである。
電極およびボタンセルの実施形態は、表1のパラメータに従って、実施例1において記載されたものと同じである。
この実施例は、実施例1から5において使用されるPEDOT−PSSで処方されたフレキソ印刷インクによる印刷の可能性を示す。
実施例6と同じであるが、ただし乾燥抽出物が40%であるインクにより、乾燥後9.7μmの平均厚みを有する電極が提供され、これは理論的には97%のインク転写率に相当する。
この実施例で使用されるインクは、実施例6で使用されるものと全く同じである。印刷版が変更されており、パターンはより密接し、これによりパターン間のインク付けで実施例6および7において見られた現象を制限することが可能となるが、ただし材料は同じである。結果的に電極の空間的精細度は大きく改善される。転写率は、実施例6に匹敵する質である。
2 第1電極
3 セパレータ
4 第2電極
5 第2集電体
6 インク筋
7 マスク
8 ドクターブレード
9 パターン
10 速度
11 フレーム
12 印刷支持体
13 印刷版
14 アニロックスロール
15 ドクターブレード
16 印刷支持体
17 逆圧シリンダ
18 インク筋
19 金属シリンダ
20 ドクターブレードシステム
21 印刷支持体
22 逆圧シリンダ
23 インク付け
この例において、使用される活性材料は、Pulead Technology Industry社のLiFePO4 含有炭素である。使用される電子伝導性ポリマーは、H.C.Starck Clevios GmbHから、Clevios S V3という商品名で販売される、さらなるバインダーを含むPEDOT−PSS水分散体の高粘度グレードである(印刷されたフィルムの抵抗は約700Ω/sq、周囲温度での粘度は60dPa.s、測定された乾燥抽出物は6.5%)。
Claims (14)
- 少なくとも1つの活性電極材料と少なくとも1つの水溶性または水分散性導電性ポリマーとを含み、前記ポリマーが、20dPa.sから100dPa.sの範囲の粘度を有するPEDOT/PSS会合体から少なくとも作られる、印刷により電極を形成するための水性インク。
- 活性電極材料が、LiFePO4、LiCoO2、Li4Ti5O12、Cgr、Si、SiC、LiNixCoyAlzO2(x+y+z=1)からなる群から選択されることを特徴とする、請求項1に記載の水性インク。
- 水溶性または水分散性導電性ポリマーの粘度が約60dPa.sであることを特徴とする、請求項1または2に記載の水性インク。
- 水性インクの粘度が0.1Pa.sから25Pa.sの範囲、より有利には0.5Pa.sから15Pa.sの範囲であることを特徴とする、請求項1から3の何れか一項に記載の水性インク。
- 活性電極材料の量が水性インクの重量に対して25%から50%の範囲、より有利には40%から50%の範囲であることを特徴とする、請求項1から4の何れか一項に記載の水性インク。
- 水溶性または水分散性導電性ポリマーの量が水性インクの重量に対して1.5%から4%の範囲、より有利には1.5%から2.5%の範囲であることを特徴とする、請求項1から5の何れか一項に記載の水性インク。
- 水性インクが、カーボンファイバなどの電子伝導体を含む群から選択される少なくとも1つの添加剤をさらに含むことを特徴とする、請求項1から6の何れか一項に記載の水性インク。
- 水性インクを集電体上に印刷することにより正電極または負電極を形成するための、請求項1から7の何れか一項に記載の水性インクの使用。
- ・有利にはインクジェット印刷、フレキソ印刷、輪転グラビア印刷によって、またはスクリーン印刷によって、集電体上に請求項1から7の何れか一項に記載の水性インクを堆積する段階、
・インクを乾燥する段階、
を含む、電極製造方法。 - 集電体上にインクを堆積することによって形成された電極を圧縮またはカレンダリングする段階をさらに含む、請求項9に記載の電極製造方法。
- 請求項9または10に記載の方法によって得られた電極。
- 2Cを超える充電・放電比率に対して3mAh.cm−2を超える面積容量を有することを特徴とする、請求項11に記載の電極。
- 請求項11または12に記載の電極を少なくとも1つ含む、リチウムアキュムレータ。
- 請求項13に記載のアキュムレータを少なくとも1つ含むリチウム電池。
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FR1057593A FR2965107A1 (fr) | 2010-09-22 | 2010-09-22 | Encre aqueuse pour l'impression d'electrodes pour batteries au lithium |
FR1057593 | 2010-09-22 | ||
PCT/FR2011/051777 WO2012038628A1 (fr) | 2010-09-22 | 2011-07-22 | Encre aqueuse pour l'impression d'electrodes pour batteries au lithium |
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FR3007582B1 (fr) | 2013-06-24 | 2015-06-26 | Inst Polytechnique Grenoble | Procede d'impression ou de depot par atomisation pour la preparation d'une electrode flexible supportee et la fabrication d'une batterie lithium-ion |
JP6417621B2 (ja) | 2014-02-12 | 2018-11-07 | ナガセケムテックス株式会社 | インク用組成物及び透明電極 |
CN107078297A (zh) | 2014-09-26 | 2017-08-18 | 应用材料公司 | 用于二次电池电极的高固体含量糊配方 |
US20160196892A1 (en) * | 2015-01-07 | 2016-07-07 | Nagase Chemtex Corporation | Conductive resin composition and transparent conductive laminated body |
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CN105390678B (zh) * | 2015-11-03 | 2018-05-01 | 宁德新能源科技有限公司 | 负极材料以及包括该负极材料的锂离子电池 |
US11111586B2 (en) | 2016-02-23 | 2021-09-07 | South Dakota Board Of Regents | Self-organized and electrically conducting PEDOT polymer matrix for applications in sensors and energy generation and storage |
KR102272871B1 (ko) | 2016-07-01 | 2021-07-05 | 어플라이드 머티어리얼스, 인코포레이티드 | 낮은 용융 온도 금속 정제 및 증착 |
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JP7081774B2 (ja) * | 2017-02-16 | 2022-06-07 | 花王株式会社 | 印刷物の製造方法 |
CN106848240B (zh) * | 2017-02-24 | 2019-12-20 | 北京工业大学 | 一种富锂正极材料/导电柔性聚合物复合材料及制备方法和应用 |
JP6424934B1 (ja) * | 2017-09-28 | 2018-11-21 | 住友大阪セメント株式会社 | リチウムイオン二次電池用正極材料、リチウムイオン二次電池用正極、リチウムイオン二次電池 |
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EP3493300B1 (de) | 2017-11-30 | 2020-10-14 | Collin Lab & Pilot Solutions GmbH | Verfahren zur aufbringung von polymerpatches auf ein substrat |
WO2020109351A1 (de) | 2018-11-28 | 2020-06-04 | Ulrich Ernst | Verfahren und system zur herstellung eines energiespeichers |
CN111224148B (zh) * | 2019-12-11 | 2021-07-13 | 中国科学院大连化学物理研究所 | 一种平面电池及其制备方法和应用 |
CN111048742A (zh) * | 2019-12-19 | 2020-04-21 | 惠州亿纬锂能股份有限公司 | 一种含有核壳式硅负极材料的极片、其制备方法和用途 |
CN112909258A (zh) * | 2021-02-06 | 2021-06-04 | 陕西科技大学 | 用于高性能镁锂双盐离子电池的柔性正负极材料及其制备方法 |
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US20130157105A1 (en) | 2013-06-20 |
EP2619827B1 (fr) | 2015-02-25 |
WO2012038628A1 (fr) | 2012-03-29 |
KR20140040669A (ko) | 2014-04-03 |
EP2619827A1 (fr) | 2013-07-31 |
CN103069618B (zh) | 2015-07-08 |
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