JP7039778B2 - リチウム二次電池の製造方法 - Google Patents
リチウム二次電池の製造方法 Download PDFInfo
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- JP7039778B2 JP7039778B2 JP2019517793A JP2019517793A JP7039778B2 JP 7039778 B2 JP7039778 B2 JP 7039778B2 JP 2019517793 A JP2019517793 A JP 2019517793A JP 2019517793 A JP2019517793 A JP 2019517793A JP 7039778 B2 JP7039778 B2 JP 7039778B2
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- 238000004519 manufacturing process Methods 0.000 title claims description 32
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims description 19
- 229910052744 lithium Inorganic materials 0.000 title claims description 19
- 238000000034 method Methods 0.000 claims description 14
- 239000011148 porous material Substances 0.000 claims description 13
- 239000007774 positive electrode material Substances 0.000 claims description 11
- 239000007773 negative electrode material Substances 0.000 claims description 10
- 239000002002 slurry Substances 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 239000011230 binding agent Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000011149 active material Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000006262 metallic foam Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000008151 electrolyte solution Substances 0.000 claims description 2
- 239000007772 electrode material Substances 0.000 description 21
- 239000010410 layer Substances 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000007784 solid electrolyte Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
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Description
そして、前記電池ケースは、アルミニウムパウチまたはアルミニウム缶であり得る。
そして、前記(S2)段階において、前記正極集電体及び前記負極集電体は振動され得る。
一方、前記リチウム二次電池は、全固体電池であり得る。
まず、電池ケース100内部の一側に設けられた3次元の多孔性正極集電体10及び前記電池ケース100内部の他側に設けられた3次元の多孔性負極集電体20を含む電池フレームを用意する((S1)段階)。
このような圧延工程を通じて、所望の形態の電池を製作することができる。
11:正極活物質
20:多孔性負極集電体
21:負極活物質
30:セパレータ
100:電池ケース
Claims (7)
- (S1)電池ケース内部の一側に設けられた3次元の多孔性正極集電体及び前記電池ケース内部の他側に設けられた3次元の多孔性負極集電体を含む電池フレームを用意する段階;
(S2)前記正極集電体の内部に形成された気孔に正極活物質を注入し、前記負極集電体の内部に形成された気孔に負極活物質を注入する段階;及び
(S3)前記電池フレームに圧力を加えて圧延する段階;を含み、
前記(S1)段階において、前記電池フレームは、前記正極集電体と前記負極集電体との間に介在されたセパレータを含み、
前記(S3)段階の後、非水電解液を前記電池フレームの内部に注入する段階を含むリチウム二次電池の製造方法。 - 前記電池ケースは、アルミニウムパウチまたはアルミニウム缶であることを特徴とする請求項1に記載のリチウム二次電池の製造方法。
- 前記正極集電体及び前記負極集電体は、それぞれ、金属フォーム、金属メッシュ及び金属繊維からなる多孔性構造体のうちいずれか1つの形態であることを特徴とする請求項1に記載のリチウム二次電池の製造方法。
- 前記(S2)段階は、真空状態で行われることを特徴とする請求項1に記載のリチウム二次電池の製造方法。
- 前記(S2)段階において、前記正極集電体及び前記負極集電体は振動されることを特徴とする請求項1に記載のリチウム二次電池の製造方法。
- 前記(S2)段階において、前記正極活物質及び前記負極活物質は、それぞれスラリー形態で注入されるか、または、バインダーがコーティングされた乾燥状態の活物質形態で注入されることを特徴とする請求項1に記載のリチウム二次電池の製造方法。
- 前記(S3)段階において、前記注入された正極活物質及び前記注入された負極活物質の乾燥工程が一緒に行われることを特徴とする請求項1に記載のリチウム二次電池の製造方法。
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Application Number | Priority Date | Filing Date | Title |
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KR1020170044955A KR102298059B1 (ko) | 2017-04-06 | 2017-04-06 | 리튬 이차전지의 제조방법 |
KR10-2017-0044955 | 2017-04-06 | ||
PCT/KR2018/002789 WO2018186597A1 (ko) | 2017-04-06 | 2018-03-08 | 리튬 이차전지의 제조방법 |
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JP2019533289A JP2019533289A (ja) | 2019-11-14 |
JP7039778B2 true JP7039778B2 (ja) | 2022-03-23 |
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US (1) | US20190221881A1 (ja) |
EP (1) | EP3525268B1 (ja) |
JP (1) | JP7039778B2 (ja) |
KR (1) | KR102298059B1 (ja) |
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WO2020149679A1 (ko) * | 2019-01-16 | 2020-07-23 | 주식회사 엘지화학 | 리튬 이차전지 및 이의 제조방법 |
WO2023049507A2 (en) | 2021-09-27 | 2023-03-30 | Quantumscape Battery, Inc. | Electrochemical stack and method of assembly thereof |
CN114551877B (zh) * | 2021-10-09 | 2023-07-07 | 万向一二三股份公司 | 一种锂电池负极片及其制备方法 |
CN114430094B (zh) * | 2022-01-25 | 2023-04-25 | 厦门海辰储能科技股份有限公司 | 复合集流体的极耳结构及其焊接方法和应用 |
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EP3525268A1 (en) | 2019-08-14 |
EP3525268B1 (en) | 2020-09-16 |
CN109952669A (zh) | 2019-06-28 |
CN109952669B (zh) | 2022-02-18 |
KR20180113417A (ko) | 2018-10-16 |
JP2019533289A (ja) | 2019-11-14 |
WO2018186597A1 (ko) | 2018-10-11 |
US20190221881A1 (en) | 2019-07-18 |
EP3525268A4 (en) | 2020-01-22 |
KR102298059B1 (ko) | 2021-09-02 |
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