{"id":16519,"date":"2016-06-01T08:00:35","date_gmt":"2016-06-01T00:00:35","guid":{"rendered":"\/\/m.iemloyee.com\/?p=16519"},"modified":"2017-01-09T20:57:13","modified_gmt":"2017-01-09T12:57:13","slug":"%e5%ad%a6%e6%9c%af%e5%b9%b2%e8%b4%a7-%e6%b7%b1%e5%ba%a6%e5%a5%bd%e6%96%87%ef%bc%8cxps%e5%9c%a8%e9%94%82%e7%a6%bb%e5%ad%90%e7%94%b5%e6%b1%a0%e4%b8%ad%e5%ba%94%e7%94%a8","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=16519","title":{"rendered":"\u5b66\u672f\u5e72\u8d27 | \u8bfb\u9ad8\u5f15\u9891\u6587\u732e\uff0c\u73a9\u8f6cXPS\u7684\u9502\u7535\u6c60\u8868\u5f81\u6280\u5de7"},"content":{"rendered":"

XPS\u4f5c\u4e3a\u4e00\u79cd\u8868\u9762\u8868\u5f81\u624b\u6bb5\uff0c\u8fd9\u662f\u5b83\u4e00\u4e2a\u5f88\u5927\u7684\u9650\u5236\uff0c\u540c\u65f6\u4e5f\u662f\u5b83\u4e00\u4e2a\u5f88\u5927\u7684\u4f18\u52bf<\/strong>\uff0c\u6b63\u6240\u8c13\u201c\u5176\u672f\u4e13\u5219\u5176\u827a\u5fc5\u7cbe\u201d\u3002\u9650\u4e8e\u7b14\u8005\u4e13\u4e1a\u80cc\u666f\uff0c\u6b64\u6b21\u4e3b\u8981\u8bb2\u8ff0XPS\u5728\u9502\u79bb\u5b50\u7535\u6c60\u4e2d\u7684\u5e94\u7528\u3002<\/p>\n

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1\u3001\u4ec0\u4e48\u662fSEI\u819c\uff1f<\/span><\/strong><\/p>\n

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SEI\u819c\u4e3b\u8981\u6210\u5206\u4e3aLiF, Li2<\/sub>CO3<\/sub>, Li2<\/sub>O\u4ee5\u53ca\u9187\u9502\u76d0\u548c\u6709\u673a\u805a\u5408\u7269\u7b49\u3002\u5176\u5f62\u6210\u8fc7\u7a0b\u6d88\u8017\u4e86\u5927\u91cf\u7684Li+<\/sup>\uff0c\u4f46\u5176\u5f62\u6210\u540e\u8d77\u7740\u4fdd\u62a4\u7535\u6781\u7684\u4f5c\u7528\uff0c\u4e14\u5bf9Li+\u4f20\u5bfc\u5f71\u54cd\u8f83\u5927\uff0c\u6240\u4ee5SEI\u819c\u7684\u7814\u7a76\u4e00\u76f4\u662f\u9502\u79bb\u5b50\u7535\u6c60\u7684\u70ed\u70b9\u3002<\/p>\n

2\u3001\u4e3a\u4ec0\u4e48XPS\u53ef\u4ee5\u5206\u6790SEI\u819c\u7684\u76f8\u5173\u4fe1\u606f\uff1f<\/strong><\/span><\/p>\n

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3\u3001\u5728\u9502\u7535\u4e2d\u7684\u5e94\u7528<\/strong><\/span><\/p>\n

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\"1\"<\/p>\n

Fig.1 \u6b63\u6781\u6750\u6599XPS\u5149\u8c31\u56fe<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u8be5\u6587\u4e2d\u4f5c\u8005\u901a\u8fc7\u6d4b\u8bd5\u5145\u7535\u5230\u4e0d\u540c\u7535\u538b\u540e\u50a8\u5b58\u4e00\u5468\u7684\u6750\u6599\u8868\u9762XPS\u4fe1\u606f<\/strong>\uff0c\u53d1\u73b0\u5728\u9ad8\u8131\u9502\u6001\u4e0b\u50a8\u5b58\u7684\u7535\u6781\u8868\u9762\u7684XPS\u4fe1\u606f\u4e2dC-O\u548cC=O\u57fa\u56e2\u7684\u542b\u91cf\u589e\u591a\uff0c\u8bf4\u660eLi2<\/sub>CO3<\/sub>\u7684\u542b\u91cf\u63d0\u9ad8\u3002\u5176\u4e2d\u7684F1s\uff0cP2p\u5bf9\u5e94\u7684\u5cf0\u9762\u79ef\u53d8\u5316\u4e0d\u5927\u3002\u4ece\u8fd9XPS\u5143\u7d20\u5206\u6790\u53ef\u4ee5\u5f97\u51fa\uff0c\u6750\u6599\u8868\u9762\u7684SEI\u819c\u4e3b\u8981\u7ec4\u6210\u4e3a\uff1aPEC\uff0cLi2<\/sub>CO3<\/sub>\uff0cLix<\/span>PFy<\/span>Oz<\/span>\uff0c\u4ee5\u53ca\u6709\u673a\u6eb6\u5242\u7684\u8fd8\u539f\u4ea7\u7269\u3002\u800c\u4eceC-O\uff0cC=O\uff0c\u4ee5\u53caO\u7684\u53d8\u5316\u6765\u770b\uff0c\u8bf4\u660e\u9ad8\u538b\u4e0b\u50a8\u5b58\uff0c\u5176Li2<\/sub>CO3<\/sub>\u542b\u91cf\u4f1a\u5347\u9ad8\uff0cLi+<\/sup>\u4e0e\u7535\u89e3\u6db2\u7684\u5206\u89e3\u53cd\u5e94\u52a0\u5267\u3002<\/p>\n

\u5e94\u7528\u4e8c\uff1a\u901a\u8fc7\u6539\u53d8\u67d0\u4e00\u4e24\u4e2a\u53c2\u6570\uff0c\u5206\u6790\u5176\u5bf9SEI\u819c\u7684\u5f71\u54cd<\/strong><\/span><\/p>\n

<\/a><\/p>\n

\u8be5\u6587\u4e2d\u4f5c\u8005\u5206\u522b\u5bf9\u6bd4\u4e86\u8131\u9502\u6001\u548c\u5d4c\u9502\u6001Li2<\/sub>FeSiO4<\/span>\u5728\u4e0d\u540c\u9502\u76d0\u4f53\u7cfb\u4e2d\u5f62\u6210\u7684SEI\u819c\u7684XPS\u5168\u8c31\u4fe1\u606f\uff0c\u7ed3\u5408\u6807\u51c6\u7ed3\u5408\u80fd\u786e\u5b9a\u5143\u7d20\u7ec4\u6210\uff1b\u5229\u7528\u8f6f\u4ef6\u5206\u5cf0\u540e\u5bf9\u6bd4\u5cf0\u9762\u79ef\u548c\u7075\u654f\u5ea6\u56e0\u5b50\u5f97\u51fa\u5404\u5143\u7d20\u539f\u5b50\u6bd4\uff0c\u4ece\u5143\u7d20\u548c\u7ec4\u6210\u7684\u5bf9\u5e94\u5173\u7cfb\uff0c\u63a8\u65ad\u5176SEI\u819c\u7ec4\u6210\uff0c\u8fdb\u800c\u5f97\u51fa\u9502\u76d0\u5bf9\u7535\u89e3\u6db2\u7ec4\u6210\u548c\u7a33\u5b9a\u6027\u7684\u5f71\u54cd\u3002<\/strong><\/p>\n

<\/a>\u00a0\u5e94\u7528\u4e09\uff1a\u5206\u6790\u5145\u653e\u7535\u8fc7\u7a0b\u4e2d\u6750\u6599\u8868\u9762\u7684XPS\u4fe1\u606f\uff0c\u5f97\u51fa\u76f8\u5173\u7684\u7535\u5316\u5b66\u53cd\u5e94\u673a\u5236<\/strong><\/span><\/p>\n

<\/a><\/p>\n

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<\/a><\/p>\n

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\u5e94\u7528\u56db\uff1a\u901a\u8fc7XPS\u5206\u6790\u7535\u6781\u8868\u9762SEI\u819c\u7684\u539a\u5ea6<\/strong><\/span><\/p>\n

\u5728\u8be5\u6587\u4e2d\uff0c\u4f5c\u8005\u5148\u6839\u636eXPS\u5168\u8c31\u5206\u6790\u5176\u5143\u7d20\u7ec4\u6210\u4ee5\u53ca\u5bf9\u5e94\u7684\u5206\u5b50\u7ed3\u6784\u5f0f\u3002\u7136\u540e\u5229\u7528Ar+<\/sup>\u79bb\u5b50\u675f\u5bf9\u7535\u6781\u6750\u6599\u8fdb\u884c\u79bb\u5b50\u523b\u8680\uff0c\u5f97\u5230\u66f4\u5185\u5c42\u7684\u4fe1\u606f\u3002\u901a\u8fc7\u63a7\u5236\u79bb\u5b50\u523b\u8680\u65f6\u95f4\uff0c\u5bf9\u7535\u6781\u6750\u6599\u8868\u9762SEI\u819c\u8fdb\u884c\u4e0d\u540c\u7a0b\u5ea6\u7684\u523b\u8680\uff0c\u7136\u540e\u6839\u636eXPS\u7684\u4fe1\u606f\u66b4\u9732\u60c5\u51b5\u5206\u6790\u5176SEI\u819c\u539a\u5ea6\u3002<\/p>\n

\u6bd4\u5982\uff1a\u5728\u6587\u4e2d\u4f5c\u8005\u53d1\u73b0\u805a\u5408\u7269(polymer)\u5728\u523b\u868035min\u5176\u5f3a\u5ea6\u57fa\u672c\u4fdd\u6301\u4e0d\u53d8\uff0c\u800c\u572835min\u540e\uff0c\u5176\u5f3a\u5ea6\u5f88\u5feb\u8fbe\u5230\u96f6\uff0c\u8fd9\u8bf4\u660e\u6b64\u65f6polymer\u5df2\u7ecf\u57fa\u672c\u88ab\u523b\u8680\u6389\u3002\u901a\u8fc7\u8ba1\u7b97\u523b\u8680\u65f6\u95f4\u548c\u5c42\u539a\u7684\u5173\u7cfb\uff0c\u8bf4\u660eSEI\u819c\u4e2dpolymer\u7684\u5c42\u539a\u5927\u7ea6\u572890nm\u5de6\u53f3<\/strong>\u3002<\/p>\n

<\/a><\/p>\n

\u6700\u540e\u4f5c\u8005\u5f97\u51faSEI\u819c\u4e2dLi2<\/sub>CO3<\/sub>\u7684\u539a\u5ea6\u5927\u7ea6\u57281.5-2nm\u5de6\u53f3\uff0c\u805a\u5408\u7269\u572890nm\u5de6\u53f3\uff0c\u9502\u76d0LiBF4<\/span>\u7684\u8fd8\u539f\u5206\u89e3\u4ea7\u7269\u7684\u539a\u5ea6\u5728200nm\u5de6\u53f3\u7b49\u4fe1\u606f\u3002<\/p>\n

\u53c2\u8003\u6587\u732e\u90e8\u5206\u5185\u5bb9\u8f83\u4e3a\u6666\u6da9\uff0c\u7b14\u8005\u5df2\u7ecf\u5c3d\u91cf\u4f7f\u4e4b\u901a\u4fd7\u3001\u7b80\u6d01\uff0c\u9650\u4e8e\u624d\u529b\u6709\u9650\uff0c\u4e0d\u8db3\u4e4b\u5904\u5e0c\u671b\u80fd\u591f\u5f97\u5230\u8bfb\u8005\u7684\u8c05\u89e3\u3002\u6240\u6709\u53c2\u8003\u8d44\u6599\u5df2\u4e0a\u4f20\u5230\u6750\u6599\u4eba\u8bba\u575b\uff0c\u5927\u5bb6\u6709\u4ec0\u4e48\u7591\u95ee\u548c\u8981\u6c42\u8bf7\u7559\u8a00\u3002<\/p>\n

\u53c2\u8003\u6587\u732e<\/strong><\/p>\n

Dedryvere, R., et al. “Contribution of X-ray photoelectron spectroscopy to the study of the electrochemical reactivity of CoO toward lithium.”<\/a> Chemistry of materials 16.6 (2004): 1056-1061.<\/em><\/strong>\u5f15\u7528\u6b21\u6570173<\/p>\n

Yang, Li, Boris Ravdel, and Brett L. Lucht. “Electrolyte reactions with the surface of high voltage LiNi0. 5Mn1. 5O4 cathodes for lithium-ion batteries.”<\/a> Electrochemical and Solid-State Letters 13.8 (2010): A95-A97.\u00a0<\/strong>\u5f15\u7528\u6b21\u6570205<\/p>\n

Dah\u00e9ron, L., et al. “Electron transfer mechanisms upon lithium deintercalation from LiCoO2 to CoO2 investigated by XPS.” <\/a>Chemistry of Materials 20.2 (2007): 583-590.<\/strong>\u5f15\u7528\u6b21\u6570\uff1a101<\/p>\n

Andersson, A. M., et al. “Electrochemically lithiated graphite characterised by photoelectron spectroscopy.<\/a>” Journal of Power Sources 119 (2003): 522-527.<\/strong>\u5f15\u7528\u6b21\u6570\uff1a116\u3002<\/p>\n

Ensling, David, et al. “A comparative XPS surface study of Li 2 FeSiO 4\/C cycled with LiTFSI-and LiPF 6-based electrolytes.”<\/a> Journal of Materials Chemistry 19.1 (2009): 82-88.<\/em><\/strong>\u5f15\u7528\u6b21\u6570\uff1a97<\/p>\n

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