TWI360248B - Secondary cell with polymer coated anode - Google Patents

Secondary cell with polymer coated anode Download PDF

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Publication number
TWI360248B
TWI360248B TW093102488A TW93102488A TWI360248B TW I360248 B TWI360248 B TW I360248B TW 093102488 A TW093102488 A TW 093102488A TW 93102488 A TW93102488 A TW 93102488A TW I360248 B TWI360248 B TW I360248B
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anode
tin
battery
cell
lithium ions
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TW093102488A
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TW200423449A (en
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Christine Ruth Jarvis
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Nexeon Ltd
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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
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/0438—Processes of manufacture in general by electrochemical processing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/0402—Methods of deposition of the material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/0402—Methods of deposition of the material
    • H01M4/0416—Methods of deposition of the material involving impregnation with a solution, dispersion, paste or dry powder
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/0438—Processes of manufacture in general by electrochemical processing
    • H01M4/044—Activating, forming or electrochemical attack of the supporting material
    • H01M4/0445—Forming after manufacture of the electrode, e.g. first charge, cycling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/0438—Processes of manufacture in general by electrochemical processing
    • H01M4/0459—Electrochemical doping, intercalation, occlusion or alloying
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/139—Processes of manufacture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
    • H01M2004/027—Negative electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/139—Processes of manufacture
    • H01M4/1395—Processes of manufacture of electrodes based on metals, Si or alloys
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Secondary Cells (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Description

1360248 玖、發明說明： 【發明所屬之技術領域】 本發明係關於一種二次電池’其中該陽極包含—當第 一次充電及放電時會歷經結構改變的材料，諸如砍或錫； 及關於一種製造此電池之方法。 【先前技術】 數年來已熟知製造一種具有鋰金屬陽極且可夾入或插 入鋰離子的陰極材料之電池。廣泛多種的夾入或插入材料 已熟知可作爲可再充電式鋰電池之陰極材料，諸如Tis或
2 L Ί3。爲了避免在循環期間於鋰金屬陽極處引發樹模石生 長的問題’已建議使用一夾.入材料（諸如碳）作爲陽極材 料。在此實例中，該陰極材料通常爲—初始包含鋰離子（諸 如LixCo〇2’其中X少於1)的夾入材料。此型式之可再充電 電池（其中陽極及陰極二者皆包含夾入的鋰離子）現在可商 業購得’且指爲鋰離子電池或指爲鞦韆或搖椅電池。已建 議將一些不同的含碳材料（諸如煤焦 '石墨或碳纖維）使用 在陽極上。商業上通常使用石墨，但是此材料在商業電池 〔 上的容量已接近理論上LiC6的極限（372毫安培小時/克）。 因此’已建議另一種陽極材料來增加電極容量；且在此方 面’錫及砂電極具有理論上顯著較高容量的優勢：Li4 4sn 爲994毫安培小時/克及Li4 4Si爲4198毫安培小時/克。但 是其在鍵離子插入期間將發生非常大的體積改變，此會導 致電極材料斷裂’因而具有差的循環性能。 【發明內容] 本發明提供一種製造二次鋰電池的陽極之方法，其包 1360248 括·將麵離子電化學插入陽極’該陽極包含一當第一次充 電及放電時會歷經結構改變的材料；然後電化學移除鋰離 子，隨後將一包含聚合材料的層塗佈至該會歷經結構改變 之材料。 根據本發明’可利用下列方法來製造二次鋰電池之陽 極’該方法包括：製造一陽極，其包含—當第一次充電及 放電時會歷經結構改變的材料；組合一電池，其包含該陽 極、一含鋰離子的陰極及一含鋰離子的電解質；讓電流通 過該電池，以便讓鋰離子插入該會歷經結構改變的材料’ 因此充電該電池，然後放電該電池；從該電池移出該陽極， 且淨化該會歷經結構改變的材料表面；及以一包含聚合材 料的層被覆該會歷經結構改變的材料。 然後’可藉由組合此被覆陽極與一合適的陰極及一電 解質來製造二次鋰電池。 · 該當第一次·充電及放電時會歷經結構改變之材料，較 佳爲第IV族元素，更佳爲较或錫，最佳爲錫。該材料在該 陽極中典型爲層的形式。 在較佳的具體實施例中，用來製造二次鋰電池用之陽 極的方法包括：將鋰離子電化學插入一包含錫層的陽極； 然後電化學移除鋰離子；隨後以一包含聚合材料的層被覆 該錫層。 在另一個較佳的具體實施例中，用來製造二次鋰電池 用之陽極的方法包括：製造一包含錫層的陽極；組合一電 池，其包含該陽.極、一包含鋰離子的陰極及一包含鋰離子 的電解質；讓電流通過該電池，以便讓鋰離子插入錫中，

Claims (1)

1360248 修正本 第931 024 88號「聚合物被覆陽極之二次電池」專利案 | II ·ιι I I ir 1 — III Ί · —- · ·····-..*» — ~ (2i〇10.年1¾月钱熟雙漢本 ί · · 拾、申請專利範圍： 1—---------------------------------------- — 1. 一種製造二次鋰電池用陽極之方法，其包括：製造一包 括錫或矽的陽極；組合一電池，其包含該陽極、包含鋰 離子之陰極及包含鋰離子之電解質；讓電流通過該電 池，以便讓鋰離子插入錫或矽，因此充電該電池，然後 放電該電池；從該電池移出該陽極，且淨化錫或矽之表 面；以及將包含聚合材料之層塗覆於錫或矽。 2. 如申請專利範圍第1項之方法，其包括將錫或矽與包含聚 合材料之溶液接觸。 3. 如申請專利範圍第2項之方法，其包括將覆蓋包含聚合材 料的溶液之錫或矽曝露至減壓下，以輔助從表面裂痕移 除氣體。 4. 如申請專利範圍第ί項之方法，其中該聚合材料層亦包括 鋰鹽。 5. 如申請專利範圍第ί項之方法，其中該聚合材料爲偏氟乙 稀（vinylidene fluoride)的同聚物（homopolymer)或共聚 物。 6. 如申請專利範圍第ί項之方法，其中該陽極包括錫。 7. —種二次鋰電池，其併入利用如前述申請專利範圍中任 何一項之方法所製造的塗覆陽極。 8. —種用具’其倂入如申請專利範圍第7項之二次鋰電池。
TW093102488A 2003-02-07 2004-02-04 Secondary cell with polymer coated anode TWI360248B (en)

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GBGB0302834.7A GB0302834D0 (en) 2003-02-07 2003-02-07 Secondary cell with tin anode

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US (1) US20060191794A1 (zh)
EP (1) EP1590852B1 (zh)
JP (1) JP4673289B2 (zh)
KR (1) KR101118482B1 (zh)
AT (1) ATE339015T1 (zh)
DE (1) DE602004002276T2 (zh)
GB (1) GB0302834D0 (zh)
TW (1) TWI360248B (zh)
WO (1) WO2004070861A2 (zh)

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US9450247B2 (en) 2013-09-26 2016-09-20 National Taiwan University Of Science And Technology Preparation method of oligomer-polymer and lithium battery

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DE602004002276T2 (de) 2007-10-04
TW200423449A (en) 2004-11-01
ATE339015T1 (de) 2006-09-15
GB0302834D0 (en) 2003-03-12
JP2006517719A (ja) 2006-07-27
EP1590852B1 (en) 2006-09-06
KR101118482B1 (ko) 2012-03-12
EP1590852A2 (en) 2005-11-02
DE602004002276D1 (de) 2006-10-19
US20060191794A1 (en) 2006-08-31
WO2004070861A3 (en) 2005-03-31
JP4673289B2 (ja) 2011-04-20
KR20050100658A (ko) 2005-10-19
WO2004070861A2 (en) 2004-08-19

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