{"id":211863,"date":"2020-10-31T14:20:13","date_gmt":"2020-10-31T06:20:13","guid":{"rendered":"\/\/m.iemloyee.com\/?p=211863"},"modified":"2020-10-31T14:20:13","modified_gmt":"2020-10-31T06:20:13","slug":"%e4%b8%ad%e7%a7%91%e5%a4%a7%e4%bd%99%e5%bd%a6aem%e7%94%b1g-c3n4%e8%a1%8d%e7%94%9f%e7%9a%84%e4%ba%ba%e5%b7%a5%e6%9c%89%e6%9c%ba-%e6%97%a0%e6%9c%ba%e5%a4%8d%e5%90%88sei%e7%94%a8%e4%ba%8e%e9%94%82","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=211863","title":{"rendered":"\u4e2d\u79d1\u5927\u4f59\u5f66AEM:\u7531g-C3N4\u884d\u751f\u7684\u4eba\u5de5\u6709\u673a\/\u65e0\u673a\u590d\u5408SEI\u7528\u4e8e\u9502\u91d1\u5c5e\u8d1f\u6781"},"content":{"rendered":"
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\u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n 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Li3<\/sub>N @ Li\u590d\u5408\u8d1f\u6781\u57281 mA cm-2<\/sup>\u7684\u7535\u6d41\u5bc6\u5ea62 mAh cm-2<\/sup>\u9762\u5bb9\u91cf\u5177\u6709\u7ea61100 h\u7684\u7a33\u5b9a\u5faa\u73af\u5bff\u547d\u3002\u6b64\u5916\uff0c\u57fa\u4e8eNCM622\u6b63\u6781\u7684\u5168\u7535\u6c60\u5c55\u73b0\u4e86\u4f18\u5f02\u7684\u957f\u5faa\u73af\u7a33\u5b9a\u6027\uff0c\u5728100\u6b21\u5faa\u73af\u540e\u5bb9\u91cf\u4fdd\u6301\u7387\u9ad8\u8fbe90\uff05\u3002 \u5bc6\u5ea6\u6cdb\u51fd\u7406\u8bba\uff08DFT\uff09\u8ba1\u7b97\u8868\u660e\uff0c\u57fa\u4e8e\u6a21\u578bg-C3N4\u5206\u5b50\uff0cLi\u539f\u5b50\u4e0eC-N=C\u548cN-(C)3<\/sub>\u57fa\u56e2\u4e4b\u95f4\u5177\u6709\u5f3a\u5927\u7684\u5438\u9644\u80fd\uff0c\u8c03\u8282\u9502\u79bb\u5b50\u6d41\u5728\u9502\u91d1\u5c5e\u9633\u6781\u8868\u9762\u4e0a\u7684\u5747\u5300\u5206\u914d\uff0c\u5e76\u8bf1\u5bfc\u9502\u79bb\u5b50\u5747\u5300\u6c89\u79ef\u3002\u6b64\u5916\uff0c\u7531\u4e8e\u8fc1\u79fb\u80fd\u5792\u964d\u4f4e\uff0c\u9502\u79bb\u5b50\u53ef\u4ee5\u5728Li3<\/sub>N\u4e2d\u5feb\u901f\u8fc1\u79fb\uff0c\u4ece\u800c\u51cf\u5c11\u4e86\u5c40\u90e8\u9502\u79bb\u5b50\u7684\u805a\u96c6\u3002\u76f8\u5173\u7814\u7a76\u6210\u679c\u201cg-C3<\/sub>N4 <\/sub>Derivative Artificial Organic\/Inorganic Composite Solid Electrolyte Interphase Layer for Stable Lithium Metal Anode<\/strong>\u201d\u4e3a\u9898\u53d1\u8868\u5728Advanced Energy Materials<\/strong>\u4e0a\u3002<\/p>\n \u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n \u56fe\u4e00<\/strong>N-<\/strong>\u6709\u673a<\/strong>\/ Li3<\/sub>N @ Li<\/strong>\u7684\u5408\u6210\u793a\u610f\u56fe\u53ca\u5176\u4f5c\u7528\u673a\u7406<\/strong><\/p>\n \u56fe\u4e8c<\/strong>N-\u6709\u673a\/Li3<\/sub>N @ Li\u7684\u7ed3\u6784\u548c\u5f62\u8c8c\u8868\u5f81<\/p>\n \uff08a\uff09g-C3<\/sub>N4<\/sub>\u7684TEM\u56fe\u50cf\u548cg-C3N4\u7c89\u672b\u7684\u6570\u7801\u7167\u7247\u3002<\/p>\n \uff08b\uff0cc\uff09N-\u6709\u673a\/Li3<\/sub>N @ Li\u7684\u4fef\u89c6\u56fe\u548c\u622a\u9762SEM\u56fe\u50cf\u3002<\/p>\n \uff08d\uff09Ti\u7b94\u4e0a\u7684N-\u6709\u673a\/Li3<\/sub>N @ Li\u7684XRD\u56fe\u8c31\u3002<\/p>\n \uff08e\uff0cf\uff09N-\u6709\u673a\/ Li3<\/sub>N @ Li\u7684Li 1s\u548cN 1s XPS\u5149\u8c31\u3002<\/p>\n \uff08g\uff09Li3<\/sub>N\u6676\u4f53\u7ed3\u6784\u793a\u610f\u56fe\u3002<\/p>\n \uff08h\uff09Li\u539f\u5b50\u5728Li3<\/sub>N\u6676\u4f53\u4e2d\u7684\u8fc1\u79fb\u80fd\u5792\u3002<\/p>\n \u56fe\u4e09<\/strong>N-<\/strong>\u6709\u673a<\/strong>\/Li3<\/sub>N @ Li<\/strong>\u8d1f\u6781\u5bf9\u79f0\u7535\u6c60\u7684\u7a33\u5b9a\u6027<\/strong><\/p>\n \uff08a\uff09N-\u6709\u673a\/Li3<\/sub>N @ Li\u8d1f\u6781\u548c\u9502\u7247\u8d1f\u6781\u57281 mA cm-2<\/sup>\u548c2 mAh cm-2<\/sup>\u7684\u7535\u538b-\u65f6\u95f4\u66f2\u7ebf\u3002<\/p>\n \uff08b\uff09\u57283 mA cm-2<\/sup>\u548c6 mAh cm-2<\/sup>\u7684\u7535\u538b-\u65f6\u95f4\u66f2\u7ebf\u3002<\/p>\n \uff08c\uff09\u57281 mA cm-2<\/sup>\u548c1 mAh cm-2<\/sup>\u768430\u4e2a\u5faa\u73af\u540e\uff0c\u901a\u8fc7\u5faa\u73af\u4f0f\u5b89\u6cd5\u6d4b\u91cf\u83b7\u5f97\u7684Tafel\u66f2\u7ebf\u3002<\/p>\n \uff08d\uff09\u9502\u79bb\u5b50\u901a\u8fc7SEI\u6269\u6563\u7684\u6d3b\u5316\u80fd\u3002<\/p>\n \uff08e\uff09\u5728\u5bf9\u79f0\u7535\u6c60\u4e2d\uff0c\u7535\u6d41\u5bc6\u5ea6\u4e3a0.5\u81f33 mA cm-2<\/sup>\u65f6\u7684\u500d\u7387\u6027\u80fd<\/p>\n \uff08f\uff0cg\uff09\u7ecf\u8fc7\u500d\u7387\u6027\u80fd\u6d4b\u8bd5\u540e\uff0cN-\u6709\u673a\/Li3<\/sub>N @ Li\u548c\u7eaf\u9502\u7247\u7535\u6781\u7684SEM\u56fe\u50cf\u3002<\/p>\n \u56fe\u56db<\/strong> N-<\/strong>\u6709\u673a<\/strong>\/Li3<\/sub>N @ Li<\/strong>\u8d1f\u6781\u7684\u6c89\u79ef<\/strong>\/<\/strong>\u5265\u79bb\u5f62\u8c8c\u6f14\u53d8<\/strong><\/p>\n \uff08a\uff09\u4f7f\u7528N-\u6709\u673a\/Li3<\/sub>N @ Li\u8d1f\u6781\u4ee52 mA cm-2<\/sup>\u548c5 mAh cm-2<\/sup>\u8fdb\u884c\u5bf9\u79f0\u7535\u6c60\u5faa\u73af\u7b2c\u4e94\u5708\u7684\u66f2\u7ebf\u3002<\/p>\n \uff08b-e\uff09\u6c89\u79ef5 mAh cm-2<\/sup>\u540e\u7684N-\u6709\u673a\/Li3<\/sub>N @ Li\u7535\u6781\u7684\u6a2a\u622a\u9762\u548c\u4fef\u89c6SEM\u56fe\u50cf\u3002<\/p>\n \uff08f-i\uff09\u5265\u79bb5 mAh cm-2<\/sup>\u540e\u7684N-\u6709\u673a\/Li3<\/sub>N @ Li\u7535\u6781\u7684\u6a2a\u622a\u9762\u548c\u4fef\u89c6SEM\u56fe\u50cf\u3002<\/p>\n \u56fe\u4e94<\/strong>N-<\/strong>\u6709\u673a<\/strong>\/Li3<\/sub>N @ Li || NCM622<\/strong>\u5168\u7535\u6c60\u7535\u5316\u5b66\u6027\u80fd<\/strong><\/p>\n \uff08a\uff09N-\u6709\u673a\/Li3<\/sub>N @ Li || NCM622\u548c\u7eafLi || NCM622\u7535\u6c60\u57281 C\u4e0b\u7684\u957f\u671f\u5faa\u73af\u6027\u80fd\uff0c\u6b63\u6781\u8d1f\u8f7d\u91cf7 mg cm-2<\/sup>\u3002<\/p>\n \uff08b\uff0cc\uff09\u4f7f\u7528\u7eafLi\u548cN-\u6709\u673a\/Li3<\/sub>N @ Li\u8d1f\u6781\u7b2c1\uff0c5\uff0c50\u5708\u5145\u653e\u7535\u66f2\u7ebf\u6bd4\u8f83\u3002<\/p>\n \u3010\u5c0f\u7ed3\u3011<\/strong><\/p>\n \u603b\u4e4b\uff0c\u5728Li\u91d1\u5c5e\u7684\u8868\u9762\u4e0a\u5f15\u5165\u4e86\u7531Li2<\/sub>CN2<\/sub>\u548cLi3<\/sub>N\u7ec4\u6210\u7684\u4eba\u9020\u6709\u673a\/\u65e0\u673a\u590d\u5408SEI\u5c42\uff0c\u4ee5\u6291\u5236Li\u679d\u6676\u7684\u751f\u957f\u3002DFT\u7ed3\u679c\u8868\u660e\uff0cC-N=C\u548cN-(C)3<\/sub>\u57fa\u56e2\u53ef\u4ee5\u8c03\u8282\u9502\u79bb\u5b50\u5728Li\u7535\u6781\u4e0a\u7684\u5747\u5300\u5206\u5e03\u5e76\u63d0\u4f9b\u8db3\u591f\u7684\u9502\u79bb\u5b50\u5f62\u6838\u4f4d\u70b9\uff0c\u4ece\u800c\u5f62\u6210\u7a33\u5b9a\u7684SEI\u5c42\u3002\u800c\u4e14\uff0c\u5f15\u5165\u5230SEI\u4e2d\u7684\u9ad8\u79bb\u5b50\u7535\u5bfc\u7387Li3<\/sub>N\u4e0d\u4ec5\u53ef\u4ee5\u4fc3\u8fdb\u9502\u79bb\u5b50\u5728\u7535\u6781\/\u7535\u89e3\u8d28\u754c\u9762\u4e4b\u95f4\u7684\u4f20\u8f93\uff0c\u800c\u4e14\u53ef\u4ee5\u51cf\u8f7b\u4e0d\u5747\u5300\u7684Li+<\/sup>\u901a\u91cf\u3002\u7ed3\u679c\uff0cN-\u6709\u673a\/Li3<\/sub>N @ Li\u590d\u5408\u7535\u6781\u53ef\u57281 mA cm-2<\/sup>\u548c2 mAh cm-2<\/sup>\u5177\u6709\u7ea61100 h\u7684\u7a33\u5b9a\u5faa\u73af\u5bff\u547d\u3002\u6b64\u5916\uff0c\u4e0e\u6ca1\u6709N-\u6709\u673a\/Li3<\/sub>N\u4fdd\u62a4\u8d1f\u6781\u7684\u5168\u7535\u6c60\u76f8\u6bd4\uff0c\u5177\u6709N-\u6709\u673a\/Li3<\/sub>N @ Li\u8d1f\u6781\u914d\u5bf9\u7684\u5168\u7535\u6c60\u663e\u793a\u51fa\u66f4\u597d\u7684\u5faa\u73af\u7a33\u5b9a\u6027\u3002\u8fd9\u9879\u5de5\u4f5c\u4e3a\u7528\u4e8e\u9ad8\u6027\u80fd\u9502\u91d1\u5c5e\u7535\u6c60\u5177\u6709\u9ad8\u79bb\u5b50\u7535\u5bfc\u7387\u7684\u4eba\u9020SEI\u7684\u6750\u6599\u548c\u7ec4\u4ef6\u8bbe\u8ba1\u63d0\u4f9b\u4e86\u542f\u793a\u3002<\/p>\n
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