REGULATION OF CARBON NANOTUBE CONDUCTIVE AGENT ON INITIAL CRACK OF SILICON COMPOSITE ELECTRODE
Silicon is the most potential anode material for new high capacity lithium ion batteries with high energy density. However, the huge volume deformation of silicon materials during charging and discharging leads to severe damage and rapiddegradation of electrodes, making the cycle life of silicon-bas...
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Editorial Office of Journal of Mechanical Strength
2024-02-01
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| Series: | Jixie qiangdu |
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| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2024.01.024 |
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| author | LI XiangJie YIN XinYu ZHAO YanFei |
| author_facet | LI XiangJie YIN XinYu ZHAO YanFei |
| author_sort | LI XiangJie |
| collection | DOAJ |
| description | Silicon is the most potential anode material for new high capacity lithium ion batteries with high energy density. However, the huge volume deformation of silicon materials during charging and discharging leads to severe damage and rapiddegradation of electrodes, making the cycle life of silicon-based batteries generally low and difficult to meet the design requirements of both high capacity and long life, which is the core problem in the development of high-capacity lithium-ion batteries. As one of the main components of the active layer of lithium ion battery composite electrode, conductive agent is traditionally considered to improve the electrical conductivity of the electrode. By studying the component content of the conductive agent (taking carbon nanotubes as an example), the experiment revealed that the conductive agent has a regulating effect on the initial crack density of the silicon composite electrode, and the optimal value of the carbon nanotube content was obtained, and the negative mechanism by which the addition of carbon nanotubes introduces defects was discovered. This mechanism also plays an important role in electrochemical cycling. The above experimental results are of great significance for the design and preparation of high capacity and long-life silicon composite electrode. |
| format | Article |
| id | doaj-art-9e3b135668fe48f485588fb0ffe38381 |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2024-02-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-9e3b135668fe48f485588fb0ffe383812025-01-15T02:44:37ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692024-02-014618719455272853REGULATION OF CARBON NANOTUBE CONDUCTIVE AGENT ON INITIAL CRACK OF SILICON COMPOSITE ELECTRODELI XiangJieYIN XinYuZHAO YanFeiSilicon is the most potential anode material for new high capacity lithium ion batteries with high energy density. However, the huge volume deformation of silicon materials during charging and discharging leads to severe damage and rapiddegradation of electrodes, making the cycle life of silicon-based batteries generally low and difficult to meet the design requirements of both high capacity and long life, which is the core problem in the development of high-capacity lithium-ion batteries. As one of the main components of the active layer of lithium ion battery composite electrode, conductive agent is traditionally considered to improve the electrical conductivity of the electrode. By studying the component content of the conductive agent (taking carbon nanotubes as an example), the experiment revealed that the conductive agent has a regulating effect on the initial crack density of the silicon composite electrode, and the optimal value of the carbon nanotube content was obtained, and the negative mechanism by which the addition of carbon nanotubes introduces defects was discovered. This mechanism also plays an important role in electrochemical cycling. The above experimental results are of great significance for the design and preparation of high capacity and long-life silicon composite electrode.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2024.01.024Lithium-ion batteriesCarbon nanotubesInitial crackDefectsHydrophobicity |
| spellingShingle | LI XiangJie YIN XinYu ZHAO YanFei REGULATION OF CARBON NANOTUBE CONDUCTIVE AGENT ON INITIAL CRACK OF SILICON COMPOSITE ELECTRODE Jixie qiangdu Lithium-ion batteries Carbon nanotubes Initial crack Defects Hydrophobicity |
| title | REGULATION OF CARBON NANOTUBE CONDUCTIVE AGENT ON INITIAL CRACK OF SILICON COMPOSITE ELECTRODE |
| title_full | REGULATION OF CARBON NANOTUBE CONDUCTIVE AGENT ON INITIAL CRACK OF SILICON COMPOSITE ELECTRODE |
| title_fullStr | REGULATION OF CARBON NANOTUBE CONDUCTIVE AGENT ON INITIAL CRACK OF SILICON COMPOSITE ELECTRODE |
| title_full_unstemmed | REGULATION OF CARBON NANOTUBE CONDUCTIVE AGENT ON INITIAL CRACK OF SILICON COMPOSITE ELECTRODE |
| title_short | REGULATION OF CARBON NANOTUBE CONDUCTIVE AGENT ON INITIAL CRACK OF SILICON COMPOSITE ELECTRODE |
| title_sort | regulation of carbon nanotube conductive agent on initial crack of silicon composite electrode |
| topic | Lithium-ion batteries Carbon nanotubes Initial crack Defects Hydrophobicity |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2024.01.024 |
| work_keys_str_mv | AT lixiangjie regulationofcarbonnanotubeconductiveagentoninitialcrackofsiliconcompositeelectrode AT yinxinyu regulationofcarbonnanotubeconductiveagentoninitialcrackofsiliconcompositeelectrode AT zhaoyanfei regulationofcarbonnanotubeconductiveagentoninitialcrackofsiliconcompositeelectrode |