JP4970266B2 - 再充電可能なリチウムバッテリー用のSi薄膜アノードの性能を改良する方法 - Google Patents
再充電可能なリチウムバッテリー用のSi薄膜アノードの性能を改良する方法 Download PDFInfo
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- JP4970266B2 JP4970266B2 JP2007531064A JP2007531064A JP4970266B2 JP 4970266 B2 JP4970266 B2 JP 4970266B2 JP 2007531064 A JP2007531064 A JP 2007531064A JP 2007531064 A JP2007531064 A JP 2007531064A JP 4970266 B2 JP4970266 B2 JP 4970266B2
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- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 239000006234 thermal black Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 150000003624 transition metals Chemical group 0.000 description 1
- BDZBKCUKTQZUTL-UHFFFAOYSA-N triethyl phosphite Chemical compound CCOP(OCC)OCC BDZBKCUKTQZUTL-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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- H01M4/36—Selection of substances as active materials, active masses, active liquids
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Description
FeCl3を、2.4MのHCl水溶液中で最終濃度0.4Mに混合してエッチング溶液を調製し、次いで、これを使用してNiホイルの表面を約1分間エッチングにより表面処理した。表面処理したNiホイル集電体上に、直径2”のSiターゲット(99.99%)からR.F.マグネトロンスパッタリングにより、厚さ5000ÅのSi薄膜を形成した。スパッタリングは、2×10−6Torrに真空排気し、次いでアルゴンガスを注入して5mTorrに設定したチャンバー中で行った。
スパッタリングの際にバイアス電圧を印加することによる効果を確認するために、下記の実験、すなわち実験AスパッタリングによるSiウェハー上へのSi薄膜の蒸着、および実験BDCバイアス電圧−100Vを印加しながらスパッタリングによるSiウェハー上へのSi薄膜の蒸着を行った。
実施例1と同じ手順を使用し、Niホイルの代わりに、Cuホイルを表面処理し、実施例2と同じ手順を使用し、−100VのDCバイアス電圧を印加することにより、実験を繰り返した。
エッチングを行わなかった(比較例1)、またはFeCl3/HCl/H2Oエッチング溶液の代わりに、下記の表1に示すエッチング溶液を使用し、エッチング時間を変化させた(比較例2および3)以外は、実施例3と同じ手順を使用して実験を繰り返した。
実施例3でエッチングしたCuホイルの表面上に、R.F.マグネトロンスパッタリングを使用し、基材に−100VのDCバイアス電圧を印加することにより、厚さ100ÅのZr層を蒸着させた後に、Si薄膜を蒸着させた以外は、実施例3と同じ手順を使用して実験を繰り返した。
Claims (8)
- ケイ素系アノード活性材料を使用した、リチウム二次電池における充放電サイクル特性を改良する方法であって、
アノード集電体の表面を処理し、前記アノード集電体の表面形態が、前記アノード集電体の表面全体に亘って5〜100μmの粒界を有してなり、及び、
粒界接合部に形成された、深さ1μmを超える溝を有してなることを含んでなり、
前記アノード集電体としてCu又はNiを使用し、FeCl3/HCl/H2Oの混合物をエッチング剤として使用し化学的エッチングを行う、方法。 - スパッタリングによって、前記表面処理したアノード集電体上に、アノード活性材料としてケイ素被膜を蒸着させ、前記アノード集電体にバイアス電圧を印加して、前記ケイ素被膜と前記アノード集電体との間の接着性をさらに改良してなる、請求項1に記載の方法。
- 前記表面処理したアノード集電体上に接着剤層を形成した後に、前記アノード活性材料として前記ケイ素被膜を前記接着剤層上に蒸着させてなる、請求項1に記載の方法。
- 前記アノード集電体としてCu又はNiを使用し、前記接着剤層がジルコニウム薄膜である、請求項1に記載の方法。
- 前記表面処理したアノード集電体上に前記接着剤層を形成した後に、前記アノード集電体にバイアス電圧を印加しながら、スパッタリングによって、前記アノード活性材料として、前記ケイ素被膜を前記接着剤層上に蒸着させてなる、請求項1に記載の方法。
- 前記アノード集電体上に前記接着剤層を形成した後、熱処理を行い、前記アノード集電体と接着剤層との間の接着性をさらに強化してなる、請求項3又は5に記載の方法。
- 前記熱処理が、100〜400℃の温度で10秒間〜30分間行われてなる、請求項6に記載の方法。
- 請求項1に記載の方法により処理又は製作したアノード、カソード、セパレータ、及びリチウム塩を含む非水性電解質を備えた、リチウム二次電池。
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KR1020040072823A KR100800968B1 (ko) | 2004-09-11 | 2004-09-11 | 리튬 이차전지용 실리콘 박막 음극의 성능 개선 방법 |
KR10-2004-0072823 | 2004-09-11 | ||
PCT/KR2004/003313 WO2006028316A1 (en) | 2004-09-11 | 2004-12-16 | Method for improvement of performance of si thin film anode for lithium rechargeable battery |
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BR (1) | BRPI0419036B8 (ja) |
CA (1) | CA2579377C (ja) |
RU (1) | RU2327254C1 (ja) |
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WO2009001526A1 (ja) * | 2007-06-22 | 2008-12-31 | Panasonic Corporation | 全固体型ポリマー電池 |
JP2010061825A (ja) * | 2008-09-01 | 2010-03-18 | Toyota Motor Corp | 電池用集電箔及びその製造方法、並びに、電池 |
WO2011136028A1 (en) | 2010-04-28 | 2011-11-03 | Semiconductor Energy Laboratory Co., Ltd. | Power storage device and method for manufacturing the same |
CN102906907B (zh) * | 2010-06-02 | 2015-09-02 | 株式会社半导体能源研究所 | 蓄电装置及其制造方法 |
WO2012002136A1 (en) * | 2010-06-30 | 2012-01-05 | Semiconductor Energy Laboratory Co., Ltd. | Manufacturing method of power storage device |
US8669009B2 (en) | 2010-07-01 | 2014-03-11 | Semiconductor Energy Laboratory Co., Ltd. | Positive electrode active material of power storage device, positive electrode of power storage device, power storage device, manufacturing method of positive electrode active material of power storage device |
JP5652161B2 (ja) * | 2010-11-26 | 2015-01-14 | 日産自動車株式会社 | 電気デバイス用Si合金負極活物質 |
US9543577B2 (en) | 2010-12-16 | 2017-01-10 | Semiconductor Energy Laboratory Co., Ltd. | Active material, electrode including the active material and manufacturing method thereof, and secondary battery |
JP2011142100A (ja) * | 2011-03-17 | 2011-07-21 | Toyota Motor Corp | 電池用集電箔及びその製造方法、並びに、電池 |
JP5751448B2 (ja) * | 2011-05-25 | 2015-07-22 | 日産自動車株式会社 | リチウムイオン二次電池用負極活物質 |
JP6034621B2 (ja) | 2011-09-02 | 2016-11-30 | 株式会社半導体エネルギー研究所 | 蓄電装置の電極および蓄電装置 |
RU2474011C1 (ru) * | 2011-11-24 | 2013-01-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ярославский государственный университет им. П.Г. Демидова" | Способ изготовления тонкопленочного анода литий-ионных аккумуляторов на основе пленок наноструктурированного кремния, покрытого двуокисью кремния |
JP5910164B2 (ja) * | 2012-02-28 | 2016-04-27 | 日産自動車株式会社 | 非水電解質二次電池 |
KR101603082B1 (ko) * | 2012-04-16 | 2016-03-14 | 주식회사 엘지화학 | 리튬 이차전지용 전극의 제조 방법 및 이를 사용하여 제조되는 전극 |
KR102201317B1 (ko) | 2014-02-24 | 2021-01-11 | 삼성전자주식회사 | 이차전지용 음극 및 이를 포함하는 이차전지 |
RU2621321C1 (ru) * | 2016-04-26 | 2017-06-02 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Ярославский государственный университет им. П.Г. Демидова" | Способ регулирования удельной емкости отрицательного электрода литий-ионного аккумулятора |
CN108998826A (zh) * | 2018-07-04 | 2018-12-14 | 山西沃特海默新材料科技股份有限公司 | 一种微孔电池铜箔的电化学热腐蚀制备方法及其微孔铜箔 |
JP7251069B2 (ja) * | 2018-08-02 | 2023-04-04 | トヨタ自動車株式会社 | 全固体電池およびその製造方法 |
CN110783557A (zh) * | 2019-10-09 | 2020-02-11 | 桂林电子科技大学 | 一种高性能硅基薄膜的制备方法及其应用 |
CN114639830A (zh) * | 2020-12-16 | 2022-06-17 | 荣盛盟固利新能源科技有限公司 | 一种可视化锂离子电极和应用及可视化锂离子电池 |
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