JP6453515B1 - 積層式二次電池の製造方法 - Google Patents
積層式二次電池の製造方法 Download PDFInfo
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0463—Cells or batteries with horizontal or inclined electrodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0436—Small-sized flat cells or batteries for portable equipment
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0459—Cells or batteries with folded separator between plate-like electrodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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- H01M10/00—Secondary cells; Manufacture thereof
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- H01M10/00—Secondary cells; Manufacture thereof
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- H01M10/0472—Vertically superposed cells with vertically disposed plates
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- H01M10/00—Secondary cells; Manufacture thereof
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- H01M10/049—Processes for forming or storing electrodes in the battery container
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/46—Separators, membranes or diaphragms characterised by their combination with electrodes
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Abstract
Description
また、前記の電極セル(b)は、負極の極性を有する電極体として負極集電体の両面に負極物質がコーティングされた電気化学素子であってもよい。
また、前記の電極セル(c)は、正極の極性を有する電極体として正極集電体の両面に正極物質がコーティングされた電気化学素子であってもよい。
また、前記積載が完成した積層体の最上及び最下の分離膜を構成せずに分離フィルムだけで包装して包むことが望ましい。
本発明の効果は、以上で言及された効果に制限されず、言及されていないさらなる効果は、以下の記載から、通常の技術者に明確に理解することができるだろう。
図1は、本発明に係る積層式二次電池の製造方法によって製造された両面コーティングされた負極(電極セル(b))を示した模式図であり、図2は、本発明に係る積層式二次電池の製造方法によって製造された両面コーティングされた正極(電極セル(c))を示した模式図であり、図3は、分離膜/負極セル/分離膜/正極セル/分離膜から構成された1つのフルセルの層状構造(単位セル(a))を示した模式図であり、図4は、単位セル(a)と電極セル(b)、電極セル(c)を順次積載した積層部の模式図であり、図5は、本発明に係る積層式二次電池の製造方法によって最上段の極性が最下段の極性と同じ極性に積層して完成された積層部の模式図であり、図6は、本発明に係る積層式二次電池の製造方法の他の実施例として、積層セルと他の積層セルが分離フィルムによって包まれる方法を示した模式図である。
本発明の工程でラミネーター(Cutting)設備を構成する場合には、フルセルラミネーター1種類と電極カッティング設備の2種類が必要である。
しかし、一般的に、セル積層した後、分離膜で包むため、別途の分離膜カッティングと積層がなくてもよいので、本発明により十分な機能を発揮するようになる。
110:正極物質
111:正極集電体
200:電極セル(b)
210:負極物質
211:負極集電体
10:分離膜
11:分離フィルム
12:テープ
20:単位セル(a)(フルセル)
20’:裏返された単位セル(a)(フルセル)
30、30’:積層セル
Claims (1)
- 2以上の単位セル(a)、電極セル(b)と電極セル(c)を交差積載する構造を有する積層式二次電池の製造方法において、
1)分離膜/負極セル/分離膜/正極セル/分離膜から構成された単位フルセルである前記単位セル(a)を準備する段階と、
2)負極単位セルである前記電極セル(b)、正極単位セルである前記電極セル(c)を準備する段階と、
3)前記の単位セル(a)、電極セル(b)、裏返された単位セル(a’)、電極セル(c)を順次積層する段階と、を含み、
前記積層される最上段の電極は、単位セル(a)の最下段の極性と同じ極性の電極を積層する構造であって、前記単位セルと電極セルを交替積載する方式で構成し、
積載が完成した積層体は外面フィルムに包まれ、フィルム端部はテープ又は熱融着で固定する方式を含み、
前記積層される電極の数量により電極セル(b)を追加積載し、分離膜を追加して最下段の極性と同じ極性の電極を構成し、最外郭側に分離膜を追加する構造であって、前記単位セルと電極セルを並行して積層する
ことを特徴とする積層式二次電池の製造方法。
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KR101837724B1 (ko) * | 2017-11-15 | 2018-03-12 | 이소라 | 적층식 이차전지 제조방법 |
CN109888360B (zh) * | 2019-01-26 | 2021-08-27 | 温在东 | 叠片电芯结构及适于其分体式叠片、贴胶的生产方法 |
CN109768316B (zh) * | 2019-01-26 | 2021-08-27 | 温在东 | 叠片电芯结构及适于其贯通式叠片、贴胶的生产方法 |
CN110391449A (zh) * | 2019-07-16 | 2019-10-29 | 蜂巢能源科技有限公司 | 模切叠片系统及方法 |
KR20210011759A (ko) | 2019-07-23 | 2021-02-02 | 이보라 | 단위셀 전복 장치 및 단위셀 전복 방법 |
KR102288476B1 (ko) | 2019-09-16 | 2021-08-10 | 이보라 | 이차 전지 제조 방법 |
KR20210032151A (ko) | 2019-09-16 | 2021-03-24 | 이보라 | 전극 조립체의 제조방법 |
KR20210032149A (ko) | 2019-09-16 | 2021-03-24 | 이보라 | 전극 조립체의 제조방법 |
KR102099292B1 (ko) | 2020-02-05 | 2020-04-09 | 이소라 | 라미네이팅으로 전극조립체를 형성하는 이차 전지 제조 시스템 |
US11201347B2 (en) | 2019-09-30 | 2021-12-14 | Sora Lee | Secondary-cell manufacturing system for forming an electrode assembly using lamination |
KR102099290B1 (ko) | 2019-09-30 | 2020-04-09 | 이소라 | 라미네이팅으로 제작된 단위셀로 전극조립체를 형성하는 이차 전지 제조 시스템 |
KR102101831B1 (ko) | 2019-09-30 | 2020-04-17 | 이소라 | 라미네이팅으로 단위셀을 제작하는 제작 공정과 그 단위셀로 전극조립체를 형성하는 제작 공정이 간소화 되는 이차 전지 제조 시스템 |
KR20210073338A (ko) * | 2019-12-10 | 2021-06-18 | 주식회사 엘지에너지솔루션 | 단위셀의 제조장치 및 제조방법 |
CN115347204A (zh) * | 2021-05-14 | 2022-11-15 | 中创新航科技股份有限公司 | 电池制造方法及电池 |
CN115347225A (zh) * | 2021-05-14 | 2022-11-15 | 中创新航科技股份有限公司 | 电池制造方法、电池、电池模组及电池包 |
DE102022125854A1 (de) | 2022-10-06 | 2024-04-11 | Volkswagen Aktiengesellschaft | Batterie mit Gehäuse, Batterieelementeverbund und Führungselement |
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Free format text: JAPANESE INTERMEDIATE CODE: R250 |