{"id":198157,"date":"2020-03-21T06:59:16","date_gmt":"2020-03-20T22:59:16","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=198157"},"modified":"2020-03-20T19:59:35","modified_gmt":"2020-03-20T11:59:35","slug":"%e6%b5%99%e6%b1%9f%e5%b7%a5%e4%b8%9a%e5%a4%a7%e5%ad%a6%e5%8d%97%e6%b4%8b%e7%90%86%e5%b7%a5%e5%a4%a7%e5%ad%a6science-advances%e7%94%a8%e4%ba%8e%e7%a8%b3%e5%ae%9a%e9%94%82%e9%87%91%e5%b1%9e%e8%b4%9f","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=198157","title":{"rendered":"\u6d59\u6c5f\u5de5\u4e1a\u5927\u5b66&\u5357\u6d0b\u7406\u5de5\u5927\u5b66Science Advances:\u7528\u4e8e\u7a33\u5b9a\u9502\u91d1\u5c5e\u8d1f\u6781\u7684\u53cc\u529f\u80fd\u201c\u7f13\u91ca\u80f6\u56ca\u201d"},"content":{"rendered":"

\u3010\u5f15\u8a00\u3011<\/strong><\/p>\n

\u8fd1\u5e74\u6765\uff0c\u5bf9\u4e8e\u9ad8\u80fd\u91cf\u5bc6\u5ea6\u7535\u6c60\u7684\u4e0d\u65ad\u8ffd\u6c42\u4f7f\u5f97\u9502\u91d1\u5c5e\u8d1f\u6781(LMA)\u518d\u6b21\u6210\u4e3a\u4e86\u7814\u7a76\u70ed\u70b9\u3002\u9502\u91d1\u5c5e\u8d1f\u6781\u7684\u4f18\u52bf\u5728\u4e8e\u5176\u7406\u8bba\u6bd4\u5bb9\u91cf\u9ad8\u8fbe3860 mAh g-1<\/sup>\u548c\u6781\u4f4e\u7684\u7535\u5316\u5b66\u7535\u52bf(-3.04V)\u3002\u4f46\u662f\uff0c\u7531\u4e8e\u9502\u7684\u4e0d\u5747\u5300\u6c89\u79ef\u548cSEI\u4e0d\u7a33\u5b9a\u5bfc\u81f4\u9502\u679d\u6676\u65e0\u8282\u5236\u7684\u751f\u957f\uff0c\u4ece\u800c\u4ea7\u751f\u4e86\u4e00\u7cfb\u5217\u95ee\u9898\u4e25\u91cd\u9650\u5236\u4e86LMA\u7684\u5546\u4e1a\u5316\u5e94\u7528\u3002\u5728\u8fc7\u53bb\u7684\u51e0\u5341\u5e74\u4e2d\uff0c\u5df2\u7ecf\u5f00\u53d1\u8bb8\u591a\u7b56\u7565\u529b\u4e8e\u7a33\u5b9a\u9502\u91d1\u5c5e\u8d1f\u6781\u3002\u5176\u4e2d\u5305\u62ec\u6784\u5efa\u529f\u80fd\u6027\u7684\u9502\u5bbf\u4e3b\uff0c\u4f8b\u5982\u901a\u8fc7\u57283D\u96c6\u6d41\u4f53\u9aa8\u67b6\u4e2d\u5f15\u5165\u4eb2\u9502\u76f8\uff0c\u80fd\u6709\u6548\u5730\u8c03\u63a7\u9502\u6c89\u79ef\u7684\u5f62\u6838\u65b9\u5f0f\uff0c\u4ece\u800c\u5b9e\u73b0\u9502\u7684\u5747\u5300\u6c89\u79ef\u3002\u53e6\u5916\u4e00\u79cd\u529e\u6cd5\u662f\u901a\u8fc7SEI\u8c03\u8282\u4fee\u9970\u9502\u8d1f\u6781\u754c\u9762\uff0c\u4ece\u800c\u6539\u5584\u9502\u7684\u6c89\u79ef\u884c\u4e3a\u3002\u76ee\u524d\u5927\u591a\u6570\u7684\u62a5\u9053\u4ec5\u96c6\u4e2d\u4e8e\u8bf1\u5bfcLi\u5747\u5300\u5f62\u6838\u6216\u5f00\u53d1\u7a33\u5b9aSEI\u8fd9\u4e24\u79cd\u65b9\u6848\u4e2d\u7684\u4e00\u79cd\uff0c\u5f88\u5c11\u6709\u62a5\u9053\u80fd\u591f\u540c\u65f6\u517c\u987e\u4e24\u6761\u9014\u5f84\u3002\u56e0\u6b64\uff0c\u5f00\u53d1\u4e00\u79cd\u53ef\u884c\u7684\u7b56\u7565\u4ee5\u5b9e\u73b0\u4e24\u79cd\u9014\u5f84\u534f\u540c\u4f5c\u7528\u7a33\u5b9aLMA\u5177\u6709\u91cd\u8981\u7684\u610f\u4e49\u3002\u00a0<\/strong><\/p>\n

\u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n

\u8fd1\u65e5\uff0c\u6d59\u6c5f\u5de5\u4e1a\u5927\u5b66\u9676\u65b0\u6c38\u6559\u6388<\/strong>\u3001\u5357\u6d0b\u7406\u5de5\u5927\u5b66\u697c\u96c4\u6587\u6559\u6388\uff08\u5171\u540c\u901a\u8baf\u4f5c\u8005<\/strong>\uff09\u8054\u5408\u6d59\u6c5f\u5927\u5b66\u7530\u9e64\u6559\u6388\u3001\u6d59\u6c5f\u5de5\u4e1a\u5927\u5b66\u5f20\u6587\u9b41\u6559\u6388\u63d0\u51fa\u4e86\u4e00\u79cd\u7528\u4e8e\u6539\u5584\u9502\u91d1\u5c5e\u8d1f\u6781\u7a33\u5b9a\u6027\u7684NaMg(Mn)F3<\/sub>\u4e9a\u5fae\u7c73\u7acb\u65b9\u4f53 (NMMF)\u3002\u6b64\u5de5\u4f5c\u662f\u57fa\u4e8e\u8bfe\u9898\u7ec4\u7eff\u8272\u78b3\u6750\u6599\u8bf1\u5bfc\u9502\u91d1\u5c5e\u8d1f\u6781\u5f62\u6838\u673a\u5236\u7814\u7a76\u7684\u91cd\u8981\u63a8\u8fdb\u548c\u53d1\u5c55(Nano Energy, 2017, 37, 177; Nano Energy, 2018, 45, 203)\u3002NMMF\u7531\u4e24\u76f8\u53ef\u6eb6\u4e8e\u919a\u7c7b\u7535\u89e3\u6db2\u7684\u78b1\u91d1\u5c5e\u6c1f\u5316\u7269\u7ec4\u6210(NaMgF3<\/sub>\u548cNaMnF3<\/sub>)\u3002\u901a\u8fc7\u5728NMMF\u8868\u9762\u5305\u8986\u4e00\u5c42\u78b3\u4f5c\u4e3a\u4fdd\u62a4\u58f3\u5c42\u8fdb\u4e00\u6b65\u51cf\u7f13\u6c1f\u5316\u7269\u7684\u6eb6\u89e3\u901f\u7387\u3002NMMF@C\u5c06\u4f5c\u4e3a\u7535\u6c60\u7cfb\u7edf\u4e2d\u7684\u201c\u7f13\u91ca\u80f6\u56ca\u201d\uff0c\u53ef\u4ee5\u5c06\u529f\u80fd\u6027\u7684\u91d1\u5c5e\u79bb\u5b50\u548c\u6c1f\u79bb\u5b50\u957f\u6548\u7f13\u6162\u91ca\u653e\u5230\u7535\u89e3\u6db2\u4e2d\u3002\u91d1\u5c5e\u79bb\u5b50\u539f\u4f4d\u5f62\u6210\u91d1\u5c5e\u5c42(M\u5c42)\u53ef\u4ee5\u8bf1\u5bfc\u9502\u7684\u5747\u5300\u6c89\u79ef\uff0c\u6c1f\u79bb\u5b50\u53ef\u4ee5\u589e\u5f3aSEI\u7a33\u5b9a\u6027\u3002\u901a\u8fc7\u51b7\u51bb\u900f\u5c04\u7535\u955c (cryo-TEM)\u6280\u672f\u8bc1\u5b9e\u4e86\u539f\u4f4d\u5f62\u6210\u7684M\u5c42\u548c\u72ec\u7279\u7684\u5bcc\u542bLiF\u7684SEI\u5c42\u7ed3\u6784\u3002NMMF@C\u6539\u6027\u7684LMA\u8868\u73b0\u51fa\u8d85\u7a33\u5b9a\u7684\u7535\u5316\u5b66\u6027\u80fd\uff0c\u5e93\u4f26\u6548\u7387\u4e3a\u76ee\u524d\u62a5\u9053\u7684\u6587\u732e\u4e2d\u6700\u9ad8\u7684\u3002\u5f53NMMF@C\u4f5c\u7528\u4e8e\u5168\u7535\u6c60\u6d4b\u8bd5\u65f6\uff0c\u4e5f\u53ef\u4ee5\u5b9e\u73b0\u8d85\u9ad8\u7684\u5bb9\u91cf\u4fdd\u6301\u7387\u548c\u51fa\u8272\u7684\u5faa\u73af\u6027\u80fd\u3002\u76f8\u5173\u7814\u7a76\u6210\u679c\u201cAn ultrastable lithium metal anode enabled by designed metal fluoride spansules<\/strong>\u201d\u4e3a\u9898\u53d1\u8868\u5728Science <\/strong>Advances<\/strong>\u4e0a\u3002<\/p>\n

\u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n

\u56fe\u4e00<\/strong> \u5728\u7eaf\u94dc\u7b94\u548c\u6539\u6027\u540e\u94dc\u7b94\u4e0a\u9502\u7684\u9884\u671f\u6c89\u79ef\u884c\u4e3a\u793a\u610f\u56fe\u3002<\/strong><\/p>\n

\"\"<\/p>\n

\u56fe\u4e8c<\/strong>NMMF@C<\/strong>\u4e9a\u5fae\u7c73\u7ea7\u7acb\u65b9\u4f53\u7684\u5236\u5907\u8fc7\u7a0b\u53ca\u76f8\u5173\u8868\u5f81\u3002<\/strong><\/p>\n

\"\"<\/p>\n

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\uff08B\uff09NMMF@C\u7684XRD\u8c31\u56fe\u3002<\/p>\n

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\uff08E\uff0cF\uff09NMMF@C\u7acb\u65b9\u4f53\u7684TEM\u56fe\u50cf\u548c\u5bf9\u5e94\u7684\u5143\u7d20\u6620\u5c04\u56fe\u50cf\u3002<\/p>\n

\u56fe\u4e09<\/strong> \u9502\u5728<\/strong>NMMF@C-Cu<\/strong>\u4e0a\u7684\u6c89\u79ef\u884c\u4e3a\u3002<\/strong><\/p>\n

\"\"<\/p>\n

\uff08A, C, E\uff09\u9502\u6c89\u79ef\u91cf\u4e3a0.5 mAh cm-2<\/sup>\uff0c1 mAh cm-2<\/sup>\uff0c3 mAh cm-2<\/sup>\u65f6NMMF@C-Cu\u7535\u6781\u7684FESEM\u4fef\u89c6\u56fe\u548c\u5bf9\u5e94\u7684\uff08B. D, F\uff09FESEM\u6a2a\u622a\u9762\u56fe\u3002<\/p>\n

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\u56fe\u56db\u51b7\u51bb\u7535\u955c\u8868\u5f81<\/strong><\/p>\n

\"\"<\/p>\n

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\uff08E\uff09\u7eaf\u94dc\u7b94\u4e0aSEI\u7684HRTEM<\/p>\n

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\u56fe\u4e94<\/strong> \u919a\u7535\u89e3\u6db2\u4e2d\u7684\u534a\u7535\u6c60\u7535\u5316\u5b66\u6027\u80fd\u8868\u5f81<\/strong><\/p>\n

\"\"<\/p>\n

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\uff08B\uff0cC\uff09NMMF@C-Cu\u8d1f\u6781\u57281 mA cm-2<\/sup>\u4e0b\u7684Li\u6c89\u79ef\/\u5265\u79bb\u66f2\u7ebf .<\/p>\n

\uff08D\uff09Cu-Li\u548cNMMF@C-Li\u8d1f\u6781\u7684\u6052\u6d41\u5145\u653e\u7535\u65f6\u95f4-\u7535\u538b\u66f2\u7ebf\u3002<\/p>\n

\u56fe\u516d<\/strong> \u5168\u7535\u6c60\u7535\u5316\u5b66\u6027\u80fd\u8868\u5f81\u3002<\/strong><\/p>\n

\"\"<\/p>\n

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\u3010\u5c0f\u7ed3\u3011<\/strong><\/p>\n

\u603b\u4e4b\uff0c\u672c\u6587\u6210\u529f\u5730\u8bbe\u8ba1\u4e86\u4e00\u79cd\u57fa\u4e8e\u78b3\u5305\u8986\u7684\u6df7\u5408\u91d1\u5c5e\u6c1f\u5316\u7269(NMMF@C)\u7528\u4e8e\u7a33\u5b9a\u9502\u91d1\u5c5e\u8d1f\u6781\u3002\u5728Li\u7684\u6c89\u79ef\/\u5265\u79bb\u8fc7\u7a0b\u4e2d\uff0cNMMF\u5c06\u957f\u6548\u7f13\u6162\u6eb6\u89e3\u5e76\u91ca\u653e\u51fa\u529f\u80fd\u6027\u7684\u91d1\u5c5e\u79bb\u5b50\u548c\u6c1f\u79bb\u5b50\u5230\u7535\u89e3\u6db2\u4e2d\u3002\u501f\u52a9\u4e8e\u51b7\u51bb\u900f\u5c04\u7535\u955c\u6d4b\u8bd5\uff0c\u53d1\u73b0\u91ca\u653e\u51fa\u6765\u7684\u91d1\u5c5e\u79bb\u5b50\u5728Cu\u886c\u5e95\u7684\u8868\u9762\u4e0a\u539f\u4f4d\u5f62\u6210\u91d1\u5c5e\u5c42\uff0c\u8be5\u91d1\u5c5e\u5c42\u80fd\u591f\u5f15\u5bfcLi\u7684\u5747\u5300\u6c89\u79ef\u3002\u540c\u65f6\uff0c\u72ec\u7279\u7684\u5177\u6709LiF\u7684\u53cc\u5c42SEI\u7ed3\u6784\u53ef\u4ee5\u7a33\u5b9aLi\/\u7535\u89e3\u6db2\u754c\u9762\uff0c\u4ece\u800c\u5bfc\u81f4\u5747\u5300\u7684Li+<\/sup>\u901a\u91cf\u5e76\u663e\u7740\u6539\u5584Li\u6c89\u79ef\u65f6\u7684\u9502\u8d1f\u6781\u7a33\u5b9a\u6027\u3002\u56e0\u6b64\u57fa\u4e8eNMMF@C\u7684\u9502\u91d1\u5c5e\u8d1f\u6781\u57282 mA cm-2<\/sup>\u7684\u9ad8\u7535\u6d41\u5bc6\u5ea6\u4e0b\uff0c1000\u6b21\u5faa\u73af\u5177\u670998%\u7684\u9ad8\u5e93\u4f26\u6548\u7387\u3002\u7531NCM811\u6b63\u6781\u548cNMMF@C-Li\u8d1f\u6781\u7ec4\u88c5\u800c\u6210\u7684\u5168\u7535\u6c60\u5177\u6709\u6781\u9ad8\u7684\u521d\u59cb\u5bb9\u91cf\u548c\u4f18\u5f02\u7684\u5faa\u73af\u7a33\u5b9a\u6027(1 C\u4e0b\u5faa\u73af500\u5708\uff0c\u6bcf\u5708\u8870\u51cf\u7387\u4ec5\u4e3a0.06%)\u3002\u672c\u6587\u7684\u7b2c\u4e00<\/strong>\/<\/strong>\u5171\u540c\u7b2c\u4e00\u4f5c\u8005<\/strong>\u662f\u6d59\u6c5f\u5de5\u4e1a\u5927\u5b66\u8881\u534e\u680b\u535a\u58eb\u751f\u3001\u4f74\u5efa\u5a01\u6559\u6388\u548c\u6d59\u6c5f\u5927\u5b66\u7530\u9e64\u6559\u6388\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1a\u201c<\/strong>An ultrastable lithium metal anode enabled by designed metal fluoride spansules<\/strong><\/a>\u201d<\/strong>(Sci. Adv. 2020, DOI : 10.1126\/sciadv.aaz3112) <\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

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