JP2019537207A - フレキシブル二次電池 - Google Patents
フレキシブル二次電池 Download PDFInfo
- Publication number
- JP2019537207A JP2019537207A JP2019520850A JP2019520850A JP2019537207A JP 2019537207 A JP2019537207 A JP 2019537207A JP 2019520850 A JP2019520850 A JP 2019520850A JP 2019520850 A JP2019520850 A JP 2019520850A JP 2019537207 A JP2019537207 A JP 2019537207A
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- Japan
- Prior art keywords
- electrode
- coating layer
- active material
- secondary battery
- current collector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 239000010410 layer Substances 0.000 claims abstract description 72
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 20
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- 239000010936 titanium Substances 0.000 claims description 19
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- 238000000926 separation method Methods 0.000 claims description 16
- -1 Aluminum-cadmium Chemical compound 0.000 claims description 15
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- 229910052744 lithium Inorganic materials 0.000 claims description 15
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Abstract
Description
本出願は、2016年12月9日出願の韓国特許出願第10−2016−0167907号に基づく優先権を主張し、該当出願の明細書及び図面に開示された内容は、すべて本出願に援用される。
第1具現例は、
長さ方向に延びた第1電極集電体、前記第1電極集電体の外側に形成された第1電極活物質層、及び前記第1電極活物質層の外側に形成された第1絶縁性コーティング層を備える第1電極;並びに
長さ方向に延びた第2電極集電体、前記第2電極集電体の外側に形成された第2電極活物質層、及び前記第2電極活物質層の外側に形成された第2絶縁性コーティング層を備える第2電極を備え、
前記第1電極と第2電極とが互いに接触して交互に配置されるように巻き取られているフレキシブル二次電池に関する。
前記第1電極集電体及び第2電極集電体が、それぞれ独立して、ステンレス鋼;アルミニウム;ニッケル;チタン;焼成炭素;銅;カーボン、ニッケル、チタンまたは銀で表面処理されたステンレス鋼;アルミニウム−カドミウム合金;導電材で表面処理された非伝導性高分子;伝導性高分子;Ni、Al、Au、Ag、Al、Pd/Ag、Cr、Ta、Cu、BaまたはITOである金属粉末を含む金属ペースト;若しくは黒鉛、カーボンブラックまたは炭素ナノチューブである炭素粉末を含む炭素ペースト;から形成されたフレキシブル二次電池に関する。
前記第1電極がカソードであり、前記第2電極がアノードであるか、または、前記第1電極がアノードであり、前記第2電極がカソードであることを特徴とするフレキシブル二次電池に関する。
前記第1電極がアノードであって、前記第2電極がカソードである場合、第1電極活物質は、天然黒鉛、人造黒鉛または炭素質材料;リチウム含有チタン複合酸化物(LTO);Si、Sn、Li、Zn、Mg、Cd、Ce、NiまたはFeである金属類(Me);前記金属類(Me)の合金類;前記金属類(Me)の酸化物(MeOx);及び前記金属類(Me)と炭素との複合体からなる群より選択されたいずれか1つの活物質またはこれらのうち2種以上の混合物を含み、
前記第2電極活物質は、LiCoO2、LiNiO2、LiMn2O4、LiCoPO4、LiFePO4、LiNiMnCoO2及びLiNi1−x−y−zCoxM1yM2zO2(M1及びM2は互いに独立して、Al、Ni、Co、Fe、Mn、V、Cr、Ti、W、Ta、Mg及びMoからなる群より選択されたいずれか1つであり、x、y及びzは互いに独立した酸化物組成元素の原子分率であって、0≦x<0.5、0≦y<0.5、0≦z<0.5、0<x+y+z≦1である)からなる群より選択されたいずれか1つの活物質またはこれらのうち2種以上の混合物を含むフレキシブル二次電池に関する。
前記第1電極がカソードであって、前記第2電極がアノードである場合、前記第1電極活物質は、LiCoO2、LiNiO2、LiMn2O4、LiCoPO4、LiFePO4、LiNiMnCoO2及びLiNi1−x−y−zCoxM1yM2zO2(M1及びM2は互いに独立して、Al、Ni、Co、Fe、Mn、V、Cr、Ti、W、Ta、Mg及びMoからなる群より選択されたいずれか1つであり、x、y及びzは互いに独立した酸化物組成元素の原子分率であって、0≦x<0.5、0≦y<0.5、0≦z<0.5、0<x+y+z=1である)からなる群より選択されたいずれか1つの活物質またはこれらのうち2種以上の混合物を含み、
前記第2電極活物質は、天然黒鉛、人造黒鉛または炭素質材料;リチウム含有チタン複合酸化物(LTO);Si、Sn、Li、Zn、Mg、Cd、Ce、NiまたはFeである金属類(Me);前記金属類(Me)の合金類;前記金属類(Me)の酸化物(MeOx);及び前記金属類(Me)と炭素との複合体からなる群より選択されたいずれか1つの活物質またはこれらのうち2種以上の混合物を含むフレキシブル二次電池に関する。
前記第1絶縁性コーティング層及び第2絶縁性コーティング層が、それぞれ独立して、多孔性ポリマーコーティング層、無機系全固体電解質コーティング層、有機系全固体コーティング層、またはポリオレフィン発泡分離膜であるフレキシブル二次電池に関する。
前記第1電極と第2電極とを全て囲む第3絶縁性コーティング層を備えるフレキシブル二次電池に関する。
前記第3絶縁性コーティング層が多孔性ポリマーコーティング層、無機系全固体電解質コーティング層、有機系全固体コーティング層、またはポリオレフィン発泡分離膜であるフレキシブル二次電池に関する。
式(1)において、MはB、Zn、Si、Cu、Ga及びGeから選択される元素を示し、a〜dは各元素の組成比を示し、a:b:c:dはそれぞれ1〜12:0〜0.2:1:2〜9を満たす。
式(1)において、Li、M、P及びSの組成比は、望ましくはbが0である。より望ましくは、bが0であって、a、c及びdの組成比がa:c:d=1〜9:1:3〜7である。さらに望ましくは、bが0であって、a:c:d=1.5〜4:1:3.25〜4.5である。各元素の組成比は、後述するように、硫化物系固体電解質を製造するときの原料化合物の配合量を調整することで制御することができる。
天然黒鉛/アセチレンブラック/PVdF=70/5/25の混合物をN−メチルピロリドン(NMP)溶媒と混合してアノード活物質スラリーを製造した後、前記スラリーを直径125μmの銅からなるワイヤ状の集電体にコーティングしてアノード活物質層を形成した。
天然黒鉛/アセチレンブラック/PVdF=70/5/25の混合物をN−メチルピロリドン(NMP)溶媒と混合してアノード活物質スラリーを製造した後、前記スラリーを直径125μmの銅からなるワイヤ状の集電体にコーティングしてアノード活物質層を形成した。
31 第1電極集電体
32 第1電極活物質層
33 第1絶縁性コーティング層
40、120 第2電極
41 第2電極集電体
42 第2電極活物質層
43 第2絶縁性コーティング層
100 フレキシブル二次電池
Claims (8)
- 長さ方向に延びた第1電極集電体、前記第1電極集電体の外側に形成された第1電極活物質層、及び前記第1電極活物質層の外側に形成された第1絶縁性コーティング層を備える第1電極;並びに
長さ方向に延びた第2電極集電体、前記第2電極集電体の外側に形成された第2電極活物質層、及び前記第2電極活物質層の外側に形成された第2絶縁性コーティング層を備える第2電極を備え、
前記第1電極と第2電極とが互いに接触して交互に配置されるように巻き取られているフレキシブル二次電池。 - 前記第1電極集電体及び第2電極集電体が、それぞれ独立して、ステンレス鋼;アルミニウム;ニッケル;チタン;焼成炭素;銅;カーボン、ニッケル、チタンまたは銀で表面処理されたステンレス鋼;アルミニウム−カドミウム合金;導電材で表面処理された非伝導性高分子;伝導性高分子;Ni、Al、Au、Ag、Al、Pd/Ag、Cr、Ta、Cu、BaまたはITOである金属粉末を含む金属ペースト;若しくは黒鉛、カーボンブラックまたは炭素ナノチューブである炭素粉末を含む炭素ペースト;から形成された請求項1に記載のフレキシブル二次電池。
- 前記第1電極がカソードであり、前記第2電極がアノードであるか、または、前記第1電極がアノードであり、前記第2電極がカソードであることを特徴とする請求項1に記載のフレキシブル二次電池。
- 前記第1電極がアノードであって、前記第2電極がカソードである場合、第1電極活物質は、天然黒鉛、人造黒鉛または炭素質材料;リチウム含有チタン複合酸化物(LTO);Si、Sn、Li、Zn、Mg、Cd、Ce、NiまたはFeである金属類(Me);前記金属類(Me)の合金類;前記金属類(Me)の酸化物(MeOx);及び前記金属類(Me)と炭素との複合体からなる群より選択されたいずれか1つの活物質またはこれらのうち2種以上の混合物を含み、前記第2電極活物質は、LiCoO2、LiNiO2、LiMn2O4、LiCoPO4、LiFePO4、LiNiMnCoO2及びLiNi1−x−y−zCoxM1yM2zO2(M1及びM2は互いに独立して、Al、Ni、Co、Fe、Mn、V、Cr、Ti、W、Ta、Mg及びMoからなる群より選択されたいずれか1つであり、x、y及びzは互いに独立した酸化物組成元素の原子分率であって、0≦x<0.5、0≦y<0.5、0≦z<0.5、0<x+y+z≦1である)からなる群より選択されたいずれか1つの活物質またはこれらのうち2種以上の混合物を含む請求項1に記載のフレキシブル二次電池。
- 前記第1電極がカソードであって、前記第2電極がアノードである場合、前記第1電極活物質は、LiCoO2、LiNiO2、LiMn2O4、LiCoPO4、LiFePO4、LiNiMnCoO2及びLiNi1−x−y−zCoxM1yM2zO2(M1及びM2は互いに独立して、Al、Ni、Co、Fe、Mn、V、Cr、Ti、W、Ta、Mg及びMoからなる群より選択されたいずれか1つであり、x、y及びzは互いに独立した酸化物組成元素の原子分率であって、0≦x<0.5、0≦y<0.5、0≦z<0.5、0<x+y+z=1である)からなる群より選択されたいずれか1つの活物質またはこれらのうち2種以上の混合物を含み、前記第2電極活物質は、天然黒鉛、人造黒鉛または炭素質材料;リチウム含有チタン複合酸化物(LTO);Si、Sn、Li、Zn、Mg、Cd、Ce、NiまたはFeである金属類(Me);前記金属類(Me)の合金類;前記金属類(Me)の酸化物(MeOx);及び前記金属類(Me)と炭素との複合体からなる群より選択されたいずれか1つの活物質またはこれらのうち2種以上の混合物を含む請求項1に記載のフレキシブル二次電池。
- 前記第1絶縁性コーティング層及び第2絶縁性コーティング層が、それぞれ独立して、多孔性ポリマーコーティング層、無機系全固体電解質コーティング層、有機系全固体コーティング層、またはポリオレフィン発泡分離膜である請求項1に記載のフレキシブル二次電池。
- 前記第1電極と第2電極とを全て囲む第3絶縁性コーティング層を備える請求項1に記載のフレキシブル二次電池。
- 前記第3絶縁性コーティング層が、多孔性ポリマーコーティング層、無機系全固体電解質コーティング層、有機系全固体コーティング層、またはポリオレフィン発泡分離膜である請求項7に記載のフレキシブル二次電池。
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WO2023073467A1 (ja) * | 2021-10-26 | 2023-05-04 | 株式会社半導体エネルギー研究所 | フレキシブルバッテリ及び電子機器 |
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WO2019086935A1 (en) * | 2017-11-03 | 2019-05-09 | CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement | Foldable flexible assembling of cells for a lithium-ion battery and current collector with carbon based conductive material |
DE102018221904A1 (de) * | 2018-12-17 | 2020-06-18 | Robert Bosch Gmbh | Elektrodeneinheit für eine Batteriezelle, Batteriezelle und Verfahren zur Herstellung einer Elektrodeneinheit |
KR20210063129A (ko) * | 2019-11-22 | 2021-06-01 | 주식회사 엘지에너지솔루션 | 플렉서블 이차전지 |
JP7136943B2 (ja) * | 2021-01-20 | 2022-09-13 | 本田技研工業株式会社 | 固体電池 |
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Publication number | Publication date |
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EP3512029A1 (en) | 2019-07-17 |
JP7034412B2 (ja) | 2022-03-14 |
WO2018106093A1 (ko) | 2018-06-14 |
KR102140308B1 (ko) | 2020-07-31 |
CN109891659A (zh) | 2019-06-14 |
EP3512029B1 (en) | 2024-03-06 |
KR20180066882A (ko) | 2018-06-19 |
US20190267633A1 (en) | 2019-08-29 |
EP3512029A4 (en) | 2019-10-23 |
US11316168B2 (en) | 2022-04-26 |
CN109891659B (zh) | 2022-05-10 |
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