JP2020004706A - 引張り可能な複合電極及び引張り可能なリチウムイオン二次電池 - Google Patents
引張り可能な複合電極及び引張り可能なリチウムイオン二次電池 Download PDFInfo
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- 239000002131 composite material Substances 0.000 title claims abstract description 184
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims description 34
- 229910001416 lithium ion Inorganic materials 0.000 title claims description 34
- 239000002238 carbon nanotube film Substances 0.000 claims abstract description 167
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 138
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 132
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 132
- 239000011149 active material Substances 0.000 claims abstract description 105
- 230000037303 wrinkles Effects 0.000 claims abstract description 24
- 239000000758 substrate Substances 0.000 claims description 96
- 239000000463 material Substances 0.000 claims description 16
- 239000003792 electrolyte Substances 0.000 claims description 5
- 239000008151 electrolyte solution Substances 0.000 claims description 4
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 30
- 239000004205 dimethyl polysiloxane Substances 0.000 description 30
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 30
- 238000004519 manufacturing process Methods 0.000 description 17
- 230000014759 maintenance of location Effects 0.000 description 13
- 229910004186 Li(NiCoMn)1/3O2 Inorganic materials 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 229910012672 LiTiO Inorganic materials 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 6
- 239000013543 active substance Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 5
- 239000007772 electrode material Substances 0.000 description 5
- 239000011245 gel electrolyte Substances 0.000 description 5
- 239000007773 negative electrode material Substances 0.000 description 5
- 239000007774 positive electrode material Substances 0.000 description 5
- 230000003252 repetitive effect Effects 0.000 description 5
- 229910015915 LiNi0.8Co0.2O2 Inorganic materials 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 4
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 4
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- 238000001878 scanning electron micrograph Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 2
- 229910010707 LiFePO 4 Inorganic materials 0.000 description 2
- 229910015643 LiMn 2 O 4 Inorganic materials 0.000 description 2
- 229910013290 LiNiO 2 Inorganic materials 0.000 description 2
- 229910001228 Li[Ni1/3Co1/3Mn1/3]O2 (NCM 111) Inorganic materials 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910000625 lithium cobalt oxide Inorganic materials 0.000 description 2
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 2
- BFZPBUKRYWOWDV-UHFFFAOYSA-N lithium;oxido(oxo)cobalt Chemical compound [Li+].[O-][Co]=O BFZPBUKRYWOWDV-UHFFFAOYSA-N 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- QSZMZKBZAYQGRS-UHFFFAOYSA-N lithium;bis(trifluoromethylsulfonyl)azanide Chemical compound [Li+].FC(F)(F)S(=O)(=O)[N-]S(=O)(=O)C(F)(F)F QSZMZKBZAYQGRS-UHFFFAOYSA-N 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000002071 nanotube Substances 0.000 description 1
- IAHFWCOBPZCAEA-UHFFFAOYSA-N succinonitrile Chemical compound N#CCCC#N IAHFWCOBPZCAEA-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
- H01M4/587—Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
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- H—ELECTRICITY
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- H01M10/052—Li-accumulators
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- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- H01M10/058—Construction or manufacture
- H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
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Abstract
Description
本実施例では、PDMS/ドローン構造カーボンナノチューブフィルム/Li(NiCoMn)1/3O2の複合正極を製造する。その製造方法は、厚さが7mmである長方形のPDMS基板を提供して、長方形のPDMS基板の長さ及び幅に沿って、それぞれPDMS基板に150%の引張量の引張を付与する。その後、75mm×75mmのアルミニウム合金フレームに敷設された6層の積層して設置されたドローン構造カーボンナノチューブフィルムで、引張られているPDMS基板を覆う。45mgのLi(NiCoMn)1/3O2という活性物質を細胞粉砕機で60mLのエタノールに分散し(10%のパワー、45min)、分散液を形成した後、移液銃で6mLの分散液を取って、分散液を、6層の積層して設置されたドローン構造カーボンナノチューブフィルムに均一に滴下する。エタノールが目立った液滴がなくなるまで蒸発した後、Li(NiCoMn)1/3O2という活性物質層が形成される。Li(NiCoMn)1/3O2という活性物質層を2層の積層して設置されたドローン構造カーボンナノチューブフィルムで覆い、移液銃で6mLの分散液を取って、分散液を、2層の積層して設置されたドローン構造カーボンナノチューブフィルムに均一に滴下する。エタノールが目立った液滴がなくなるまで蒸発した後、Li(NiCoMn)1/3O2という活性物質層が形成される。上記のステップを10回繰り返す。最後に、6層の積層して設置されたドローン構造カーボンナノチューブフィルムで覆う。エタノールが目立った液滴がなくなるまで蒸発した後、PDMS基板に対する予引張を除去し、弾性基板の完全性を確保した上で、レーザーでドローン構造カーボンナノチューブフィルム/Li(NiCoMn)1/3O2を切断し、30mm×30mmの活性物質区域を有するPDMS/ドローン構造カーボンナノチューブフィルム/Li(NiCoMn)1/3O2の複合正極を獲得する。ここで、積層して設置されたドローン構造カーボンナノチューブフィルムの中の隣接するカーボンナノチューブフィルムにおけるカーボンナノチューブが交差して設置される。交差する角度は90°である。
本実施例では、引張り可能なPDMS/ドローン構造カーボンナノチューブフィルム/Li(NiCoMn)1/3O2の複合電極を製造する。その製造方法は、実施例1の製造方法と基本的に同じである。異なるのは、活性物質層の材料がLi4Ti5O12であることである。
本比較例では、PDMS/ドローン構造カーボンナノチューブフィルム/Li(NiCoMn)1/3O2の複合正極を製造する。その製造方法は、実施例1の製造方法と基本的に同じである。異なるのは、本比較例のPDMS基板は予引張の処理を行わないことである。
本比較例では、PDMS/ドローン構造カーボンナノチューブフィルム/Li4Ti5O12の複合負極を製造する。その製造方法は、実施例2の製造方法と基本的に同じである。異なるのは、本比較例のPDMS基板は予引張の処理を行わないことである。
120 弾性基板
140 カーボンナノチューブフィルム活性物質複合層
142 カーボンナノチューブフィルム構造体
144 活性物質層
20 引張り可能なリチウムイオン二次電池
210 引張り可能な正極
220 引張り可能な負極
230 電解液
240 正極電極耳
250 負極電極耳
260 実装構造体
270 PDMS薄膜
Claims (4)
- 引張り可能な複合電極であって、カーボンナノチューブ活性物質複合層を含み、前記カーボンナノチューブ活性物質複合層の表面に複数のしわを有し、前記カーボンナノチューブ活性物質複合層は、複数のカーボンナノチューブフィルム構造体及び複数の活性物質層を含み、前記カーボンナノチューブフィルム構造体及び複数の前記活性物質層が積層して、交互に設置され、隣接する二つの前記カーボンナノチューブフィルム構造体の間に一つの前記活性物質層が設置され、各々の前記カーボンナノチューブフィルム構造体は、複数のドローン構造カーボンナノチューブフィルムを含み、複数の前記ドローン構造カーボンナノチューブフィルムが積層して設置され、各ドローン構造カーボンナノチューブフィルムは、複数のカーボンナノチューブを含み、複数の前記カーボンナノチューブが基本的に同じ方向に沿って配列されることを特徴とする引張り可能な複合電極。
- 複数の前記ドローン構造カーボンナノチューブフィルムにおいて、隣接する前記ドローン構造カーボンナノチューブフィルムにおけるカーボンナノチューブが交差して設置されることを特徴とする、請求項1に記載の引張り可能な複合電極。
- 更に弾性基板を含み、前記カーボンナノチューブ活性物質複合層が前記弾性基板の表面に設置されることを特徴とする、請求項1に記載の引張り可能な複合電極。
- 引張り可能なリチウムイオン二次電池は、正極、負極、電解液、正極電極耳及び負極電極耳を含み、前記正極電極耳の一つの端部が前記正極に接続され、前記負極電極耳の一つの端部が前記負極に接続され、前記電解液が前記正極と前記負極の間に位置し、前記正極及び/又は負極が前記請求項1〜3の中のいずれかの一項の引張り可能な複合電極を採用することを特徴とする引張り可能な引張り可能なリチウムイオン二次電池。
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CN201810711900.5A CN110660964B (zh) | 2018-06-29 | 2018-06-29 | 可拉伸复合电极以及可拉伸锂离子电池 |
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US11171324B2 (en) | 2016-03-15 | 2021-11-09 | Honda Motor Co., Ltd. | System and method of producing a composite product |
US11081684B2 (en) | 2017-05-24 | 2021-08-03 | Honda Motor Co., Ltd. | Production of carbon nanotube modified battery electrode powders via single step dispersion |
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