JP7137468B2 - リチウムイオン型蓄電池の製造方法 - Google Patents
リチウムイオン型蓄電池の製造方法 Download PDFInfo
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- H01M4/485—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
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- H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
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- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
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Description
-負極は、それを含む挿入材料のネットワークにリチウムを挿入し;
-正極は、負極の挿入材料に挿入されるリチウムを放出する。
-負極の前リチウム化(prelithiation)技術;又は、
-正極の過リチウム化(overlithiation)技術。
-「in situ」と呼ばれる技術であり、金属シートの形態(特許文献1に記載)又は保護層によって安定化されたリチウム金属粉末の形態(非特許文献1に記載)のリチウム金属(すなわち「0」の酸化度)を、負極成分(すなわち、活物質、電子伝導体及び有機バインダー)を含むインクと混合し、負極上に沈着させることから成り、腐食現象のために自然に維持される代替物とは無関係に、リチウムの挿入が行われる;
-「ex situ」と呼ばれる技術であり、後者(負極)を電解浴及びリチウムを含む対電極を備えるセットアップに配置することによって、負極を電気化学的に前リチウム化することからなる。これらの技術は負極に導入されるリチウムの量を制御することができるが、しかしながら、複雑な実験のセットアップの実施を必要とするという欠点を有する。
-電極の空隙率の増加に寄与する塩の分解に起因する、電極のコアにおけるデッドボリュームの出現;及び、
-活物質を使用不可能とし、蓄電池の容量の損失を誘発する、電極の特定部分の電子的分離。
a)正極を蓄電池に配置する前に、正極の表面にリチウム塩を沈着させる工程;
b)正極、負極及び電解質を組立てる工程;及び、
c)前述の工程の組立て品に最初の充電を行うことによって、リチウム塩の分解から生じるリチウムイオンを用いて負極の表面上に不動態層を形成する工程。
-リチウム塩;
-カーボンブラックなどの導電性炭素添加剤;
-フッ化ポリビニリデンなどのフッ素化ポリマー系を用いたバインダーなどの高分子バインダー;及び、
-有機溶媒、例えば、N-メチル-2-ピロリドン(NMP)溶媒などの非プロトン性極性溶媒。
-式N3A(式中、Aはリチウムカチオンに相当する)のアジ化リチウム;
-例えば、下記式(II)~(IV)で表される、ケトカルボン酸リチウム;
-例えば、下記式(V)~(VI)で表される、リチウムヒドラジド:
-硬質炭素、天然若しくは人造黒鉛などの炭素材料;
-金属リチウム若しくはケイ素・リチウム合金、スズ・リチウム合金などのリチウム合金;又は、
-Li4Ti5O12若しくはLiTiO2などの混合酸化リチウム。
-非プロトン性無極性溶媒などの少なくとも1種の有機溶媒に溶解したリチウム塩を含む液体電解質;
-イオン性液体;又は、
-固体ポリマー電解質。
この実施例は、正極が予めリチウム塩を含む層で被覆されている、本発明に従ったリチウムイオン蓄電池(第1の蓄電池という)と、本発明に従っていないリチウムイオン蓄電池(第2の蓄電池という)の作製を示す。
この実施例は、正極が予めリチウム塩を含む層で被覆されている、本発明に従ったリチウムイオン蓄電池(第1の蓄電池という)と、本発明に従っていないリチウムイオン蓄電池(第2の蓄電池という)の作製を示す。
Claims (14)
- 電解質の両側に配置された正極及び負極を備えたリチウムイオン蓄電池の製造方法であって、前記正極がリチウム系材料を活物質として含み、以下の工程を含む方法:
a)正極を蓄電池に配置する前に、正極の表面にリチウム塩を沈着させる沈着工程;
b)正極、負極及び電解質を組立てる工程;及び、
c)前述の工程の組立て品に最初の充電を行うことによって、正極の内部構造が破壊されることなく、正極の表面に沈着したリチウム塩が分解されて生じるリチウムイオンを用いて負極の表面上に不動態層を形成する工程であって、不動態層の形成後には過剰な塩が正極に存在することがない工程。 - 沈着工程が、正極上にリチウム塩を含む組成物を沈着させることからなるインクジェット技術を用いて行われる、請求項1に記載の方法。
- リチウム塩が以下を含む組成物を用いて沈着される、請求項1又は2に記載の方法:
-リチウム塩;
-導電性炭素添加剤;
-高分子バインダー;及び、
-有機溶媒。 - リチウム塩が以下から選択される、請求項1~3のいずれか一項に記載の方法:
-式N3A(式中、Aはリチウムカチオンに相当する)のアジ化リチウム;
-ケトカルボン酸リチウム;
-リチウムヒドラジド; - リチウム塩が、シュウ酸リチウムとも呼ばれる式(II)のケトカルボン酸リチウムである、請求項5に記載の方法。
- 正極が、活物質として、少なくとも1種の遷移金属元素を含むリチウム化酸化物系材料、又は、少なくとも1種の遷移金属元素を含むリチウム化リン酸塩系材料を含む、請求項1~7のいずれか一項に記載の方法。
- 正極が、活物質として、LiFePO4を含む、請求項1~8のいずれか一項に記載の方法。
- 負極が活物質として以下を含む、請求項1~9のいずれか一項に記載の方法:
-炭素材料;
-金属リチウム若しくはリチウム合金;又は、
-混合酸化リチウム。 - 炭素材料が、硬質炭素又は黒鉛である、請求項10に記載の方法。
- リチウム合金が、ケイ素・リチウム合金又はスズ・リチウム合金である、請求項8又は9に記載の方法。
- 混合酸化リチウムが、Li4Ti5O12又はLiTiO2である、請求項10~12のいずれか一項に記載の方法。
- 負極が活物質として黒鉛を含む、請求項1~13のいずれか一項に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1560050A FR3042914B1 (fr) | 2015-10-21 | 2015-10-21 | Procede de fabrication d'un accumulateur du type lithium-ion |
FR1560050 | 2015-10-21 | ||
PCT/EP2016/075114 WO2017067996A1 (fr) | 2015-10-21 | 2016-10-19 | Procede de fabrication d'un accumulateur du type lithium-ion |
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JP2018531498A JP2018531498A (ja) | 2018-10-25 |
JP2018531498A6 JP2018531498A6 (ja) | 2018-12-13 |
JP7137468B2 true JP7137468B2 (ja) | 2022-09-14 |
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US (1) | US20180315995A1 (ja) |
EP (1) | EP3365933B1 (ja) |
JP (1) | JP7137468B2 (ja) |
KR (1) | KR102660380B1 (ja) |
CN (1) | CN108475763A (ja) |
FR (1) | FR3042914B1 (ja) |
WO (1) | WO2017067996A1 (ja) |
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KR102270113B1 (ko) * | 2017-05-25 | 2021-06-28 | 주식회사 엘지에너지솔루션 | 이차전지용 양극의 제조방법, 이와 같이 제조된 이차전지용 양극 및 이를 포함하는 리튬 이차전지 |
FR3068832B1 (fr) | 2017-07-07 | 2021-06-04 | Renault Sas | Procede de fabrication d'un accumulateur du type lithium-ion |
FR3074967B1 (fr) * | 2017-12-08 | 2021-04-23 | Commissariat Energie Atomique | Collecteur de courant et ensemble collecteur de courant-electrode pour accumulateur fonctionnant selon le principe d'insertion et desinsertion ionique |
FR3091623B1 (fr) * | 2019-01-03 | 2022-12-09 | Commissariat Energie Atomique | Cellule electrochimique pour accumulateur au lithium comprenant une electrode negative specifique en lithium metallique et une electrode positive sur collecteur en aluminium |
CN112271280B (zh) * | 2020-10-22 | 2023-01-13 | 欣旺达电动汽车电池有限公司 | 复合正极材料及其制备方法和锂离子电池 |
FR3130456B1 (fr) * | 2021-12-09 | 2024-04-26 | Commissariat Energie Atomique | Electrodes positives specifiques comprenant un sel specifique pour accumulateur du type metal alcalin-ion |
CN114824163B (zh) * | 2022-04-29 | 2024-03-12 | 佛山市德方纳米科技有限公司 | 一种正极材料及其制备方法和应用 |
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JP2006173001A (ja) | 2004-12-17 | 2006-06-29 | Nissan Motor Co Ltd | リチウムイオン電池およびその製造方法 |
JP2011090876A (ja) | 2009-10-22 | 2011-05-06 | Toyota Motor Corp | リチウム二次電池および該電池の製造方法 |
JP2011165343A (ja) | 2010-02-04 | 2011-08-25 | Hitachi Ltd | 非水電解質二次電池装置およびその負極を充電する方法 |
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EP3121874A1 (en) * | 2015-07-20 | 2017-01-25 | Basf Se | Cathodes for lithium ion batteries comprising solid lithium oxalate |
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2015
- 2015-10-21 FR FR1560050A patent/FR3042914B1/fr not_active Expired - Fee Related
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- 2016-10-19 KR KR1020187012743A patent/KR102660380B1/ko active IP Right Grant
- 2016-10-19 US US15/770,042 patent/US20180315995A1/en not_active Abandoned
- 2016-10-19 EP EP16782290.7A patent/EP3365933B1/fr active Active
- 2016-10-19 JP JP2018520562A patent/JP7137468B2/ja active Active
- 2016-10-19 CN CN201680061470.6A patent/CN108475763A/zh active Pending
- 2016-10-19 WO PCT/EP2016/075114 patent/WO2017067996A1/fr active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006173001A (ja) | 2004-12-17 | 2006-06-29 | Nissan Motor Co Ltd | リチウムイオン電池およびその製造方法 |
JP2011090876A (ja) | 2009-10-22 | 2011-05-06 | Toyota Motor Corp | リチウム二次電池および該電池の製造方法 |
JP2011165343A (ja) | 2010-02-04 | 2011-08-25 | Hitachi Ltd | 非水電解質二次電池装置およびその負極を充電する方法 |
JP2013529830A (ja) | 2010-06-17 | 2013-07-22 | サントル ナスィオナル ド ラ ルシェルシュ スィアンティフィク | リチウム又はナトリウム電池の製造方法 |
CN104037418A (zh) | 2013-03-05 | 2014-09-10 | 中国科学院宁波材料技术与工程研究所 | 一种锂离子电池正极膜及其制备和应用 |
JP2018531497A (ja) | 2015-10-21 | 2018-10-25 | コミッサリア ア レネルジー アトミーク エ オ ゼネルジ ザルタナテイヴ | ナトリウムイオン電池の製造方法 |
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JP2018531498A (ja) | 2018-10-25 |
US20180315995A1 (en) | 2018-11-01 |
WO2017067996A1 (fr) | 2017-04-27 |
KR102660380B1 (ko) | 2024-04-26 |
EP3365933B1 (fr) | 2019-11-06 |
FR3042914B1 (fr) | 2017-11-17 |
CN108475763A (zh) | 2018-08-31 |
EP3365933A1 (fr) | 2018-08-29 |
FR3042914A1 (fr) | 2017-04-28 |
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