{"id":102016,"date":"2017-09-18T14:00:50","date_gmt":"2017-09-18T06:00:50","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=102016"},"modified":"2017-09-16T21:17:21","modified_gmt":"2017-09-16T13:17:21","slug":"%e5%b4%94%e5%b1%b9%e6%9c%80%e6%96%b0science-advances%ef%bc%9a%e8%bf%87%e9%94%82%e5%8c%96%e4%bb%8b%e5%ad%94alf%c2%ad3%e6%a1%86%e6%9e%b6%e6%9e%84%e5%bb%ba%e7%94%a8%e4%ba%8e%e9%ab%98%e7%94%b5%e6%b5%81","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=102016","title":{"rendered":"\u5d14\u5c79\u6700\u65b0Science Advances\uff1a\u8fc7\u9502\u5316\u4ecb\u5b54AlF\u00ad3\u6846\u67b6\u6784\u5efa\u7528\u4e8e\u9ad8\u7535\u6d41\u5bc6\u5ea6\u7684\u91d1\u5c5e\u9502\u7535\u6c60\u8d1f\u6781"},"content":{"rendered":"

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

\u9502\u91d1\u5c5e\u7535\u6c60\u7531\u4e8e\u5176\u7406\u8bba\u5bb9\u91cf\u9ad8\u3001\u7535\u52bf\u4f4e\uff0c\u6709\u671b\u4ee3\u66ff\u78b3\u57fa\u8d1f\u6781\u6210\u4e3a\u672a\u6765\u9502\u7535\u6c60\u53d1\u5c55\u7684\u4e3b\u6d41\u3002\u7136\u800c\uff0c\u8bb8\u591a\u68d8\u624b\u7684\u95ee\u9898\u4ecd\u672a\u89e3\u51b3\uff0c\u5982\u8106\u5f31\u7684SEI\u819c\u3001\u9502\u679d\u6676\u7684\u751f\u957f\u7b49\u56e0\u7d20\u90fd\u5a01\u80c1\u7740\u9502\u91d1\u5c5e\u7535\u6c60\u7684\u5b89\u5168\u4f7f\u7528\u3002<\/p>\n

\u6700\u8fd1\u5bf9\u9502\u91d1\u5c5e\u8d1f\u6781\u7684\u7814\u7a76\u7684\u7814\u7a76\u4e3b\u8981\u96c6\u4e2d\u4e8e\u7535\u89e3\u6db2\u7684\u4fee\u9970\uff0cSEI\u819c\u548c\u9694\u819c\u6539\u8fdb\u7b49\u65b9\u9762\u3002\u5176\u4e2d\u4e00\u4e9b\u5de5\u4f5c\u96c6\u4e2d\u4e8e\u7528\u9502\u7c89\u4ee3\u66ff\u9502\u7247\uff0c\u8bbe\u8ba1\u72ec\u7279\u7684\u96c6\u6d41\u4f53\u7528\u4e8e\u9502\u6c89\u79ef\u7b49\u65b9\u9762\u3002\u867d\u7136\u8fd9\u4e9b\u5c1d\u8bd5\u6709\u6548\u5730\u63a8\u52a8\u4e86\u91d1\u5c5e\u9502\u8d1f\u6781\u5de5\u7a0b\u6280\u672f\u7684\u53d1\u5c55\u5e76\u89e3\u51b3\u4e86\u90e8\u5206\u95ee\u9898\uff0c\u4f46\u662f\u5927\u90e8\u5206\u5de5\u4f5c\u4e0d\u80fd\u540c\u65f6\u5728\u5faa\u73af\u4e2d\u7ef4\u6301\u7535\u6781\u4f53\u79ef\u7a33\u5b9a\u5e76\u51cf\u7f13\u679d\u6676\u7684\u751f\u957f\u65b9\u9762\u8d77\u4f5c\u7528\u3002<\/p>\n

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

\u8fd1\u65e5\uff0c\u6765\u81ea\u65af\u5766\u798f\u5927\u5b66\u7684\u5d14\u5c79\u6559\u6388\u56e2\u961f\uff08\u901a\u8baf\u4f5c\u8005\uff09<\/strong>\u5728\u8457\u540dScience\u5b50\u520aScience Advances<\/strong>\u4e0a\u53d1\u8868\u9898\u4e3a\u201d Ultrahigh\u2013current density anodes with interconnected Li metal reservoir through overlithiation of mesoporous AlF3<\/sub> framework<\/strong>\u201d\u7684\u6587\u7ae0\uff0c\u7b2c\u4e00\u4f5c\u8005\u4e3aHansen Wang (\u738b\u701a\u68ee)<\/strong>\u3002\u8be5\u6587\u7ae0\u62a5\u9053\u4e86\u4e00\u79cd\u7528Al4<\/sub>Li9\u00ad<\/sub>-LiF\u4f5c\u4e3a\u7a33\u5b9a\u4e3b\u4f53\u6846\u67b6\uff0c\u4e09\u7ef4\u91d1\u5c5e\u9502\u901a\u8fc7\u4ecb\u5b54AlF\u00ad3<\/sub>\u7684\u7b80\u5355\u4e00\u6b65\u8fc7\u9502\u5316\u8fc7\u7a0b\u5d4c\u5165\u8be5\u7eb3\u7c73\u590d\u5408\u7269\u4e2d(Li\/Al4<\/sub>Li9\u00ad<\/sub>-LiF,LAFN)\uff0c\u4ece\u800c\u6784\u5efa\u65b0\u578b\u91d1\u5c5e\u9502\u8d1f\u6781\u7684\u65b9\u6cd5\u3002\u8fd9\u79cdLAFN\u662f\u4e00\u79cd\u5728\u9502\u5265\u79bb\/\u6c89\u79ef\u8fc7\u7a0b\u4e2d\u8fd1\u4e4e\u96f6\u4f53\u79ef\u6539\u53d8\u7684\u7406\u60f3\u4e3b\u4f53\u6846\u67b6\u3002\u5c3d\u7ba1\u6846\u67b6\u5360\u636e\u4e86\u7a7a\u95f4\uff0c\u4f46\u662fLAFN\u590d\u5408\u7269\u4e2d\u7684\u91d1\u5c5e\u9502\u4ecd\u67091571mAh g-1<\/sup>\u7684\u9ad8\u6bd4\u5bb9\u91cf\u4ee5\u53ca1447mAh cm-3<\/sup>\u7684\u4f53\u79ef\u5bb9\u91cf\u3002\u540c\u65f6\uff0c\u5b83\u4fc3\u8fdb\u4e86\u9502\u79bb\u5b50\u7684\u6269\u6563\uff0c\u6539\u826f\u4e86\u9502\u91d1\u5c5e\u4e0e\u7535\u89e3\u6db2\u7684\u754c\u9762\uff0c\u6709\u6548\u6291\u5236\u9502\u679d\u6676\u7684\u751f\u957f\uff0c\u7531\u4e8e\u8fd9\u4e9b\u4f18\u70b9\uff0c\u8be5\u91d1\u5c5e\u9502\u7535\u6781\u80fd\u591f\u572820mA cm\u20112<\/sup>\u9ad8\u7535\u6d41\u5bc6\u5ea6\u4e0b\u5faa\u73af\u81f3\u5c11100\u6b21\uff0c\u5e76\u4e14\u6539\u5584\u4e86\u5168\u7535\u6c60\u5728\u9ad8\u500d\u7387\u4e0b\u7684\u5de5\u4f5c\u6027\u80fd\u3001\u63d0\u9ad8\u4e86\u5e93\u4f26\u6548\u7387\u3002<\/p>\n

 <\/p>\n

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

\u56fe\u4e00\uff1a<\/strong>AlF3<\/sub><\/strong>\u7c89\u672b\u548c<\/strong>LAFN<\/strong>\u7684\u5f62\u6001\u3002<\/strong><\/p>\n

\"\"<\/p>\n

(a) AlF3<\/sub>\u7c89\u672b\u4ecb\u5b54\u6846\u67b6\u793a\u610f\u56fe\uff1b<\/p>\n

(b) Al4<\/sub>Li9\u00ad<\/sub>-LiF\u9aa8\u67b6\u793a\u610f\u56fe\uff1b<\/p>\n

(c) LAFN\u793a\u610f\u56fe\uff1b<\/p>\n

(d-f)AlF3<\/sub>\u7c89\u672b\u5206\u522b\u5728\u4e0d\u540c\u653e\u5927\u500d\u901f\u4e0b\u7684SEM\u56fe\uff08\u6807\u5c3a\u5206\u522b\u4e3a20\u03bcm\u30011\u03bcm\u548c200nm\uff09\uff1b<\/p>\n

(g) \u539f\u59cbLAFN\u8868\u9762SEM\u56fe\uff1b<\/p>\n

(h) 5mAh cm\u20142<\/sup>\u7535\u6d41\u5bc6\u5ea6\u4e0b\u9502\u5265\u79bb\u540e\u7684LAFN\u8868\u9762\u7684SEM\u56fe\uff1b<\/p>\n

(i) 5mAh cm\u20142<\/sup>\u7535\u6d41\u5bc6\u5ea6\u4e0b\u9502\u5265\u79bb\u540e\u518d\u6c89\u79ef\u7684LAFN\u8868\u9762\u7684SEM\u56fe\uff1b<\/p>\n

(j-l) \u4e0a\u56fe(g-i)\u4e2d\u6bd4\u4f8b\u5c3a\u4e3a200nm\u7684\u653e\u5927SEM\u56fe\u3002<\/p>\n

 <\/p>\n

\u56fe\u4e8c\uff1a\u679d\u6676\u6291\u5236\u3001\u4f53\u79ef\u7a33\u5b9a\u7684<\/strong>LAFN<\/strong>\u7535\u6781\u3002<\/strong><\/p>\n

\"\"<\/p>\n

(a) \u7406\u60f3\u548c\u975e\u7406\u60f3\u5d4c\u9502\u8fc7\u7a0b\u793a\u610f\u56fe\uff1b<\/p>\n

(b)\/(c) \u9502\u7247\/LAFN\u8868\u9762\u57281mA cm-2<\/sup>\u7535\u6d41\u5bc6\u5ea6\u4e0b\u5bf9\u79f0\u7535\u6c60\u5faa\u73af\u7684SEM\u56fe\uff1b<\/p>\n

(d)\/(e) \u9502\u7247\/LAFN\u8868\u9762\u572820mA cm-2<\/sup>\u30011mAh cm-2<\/sup>\u7535\u6d41\u5bc6\u5ea6\u4e0b\u5bf9\u79f0\u7535\u6c60\u5faa\u73af\u7684SEM\u56fe\uff1b<\/p>\n

(f)\u539f\u59cbLAFN\u7535\u6781\u3001(g)37.5mAh cm-2<\/sup>\u4e0b\u9502\u5265\u79bb\u548c(h)37.5mAh cm-2<\/sup>\u4e0b\u53bb\u9502\u540e\u518d\u5d4c\u9502\u7684SEM\u622a\u9762\u56fe\u3002<\/p>\n

 <\/p>\n

\u56fe\u4e09\uff1a<\/strong>LAFN<\/strong>\u7535\u6781\u7684\u7535\u5316\u5b66\u6027\u8d28\u3002<\/strong><\/p>\n

\"\"<\/p>\n

(a-b)LAFN\u7535\u6781\u548c\u9502\u7247\u7535\u6781\u7684\u7535\u5316\u5b66\u963b\u6297\u8c31\uff1b<\/p>\n

(c) \u9502\u5265\u79bb\u8fc7\u7a0b\u7684\u7535\u538b\u53d8\u5316\u56fe\uff1b<\/p>\n

(d) \u9502\u5265\u79bb\u81f31V\u540e\u6837\u7247\u7684XRD\u56fe\u8c31\u3002<\/p>\n

 <\/p>\n

\u56fe\u56db\uff1a<\/strong>LAFN<\/strong>\u5bf9\u79f0\u7535\u6c60\u7684\u5faa\u73af\u6027\u80fd\u3002<\/strong><\/p>\n

\"\"<\/p>\n

(a) 1mA cm-2<\/sup> (b) 10mA cm-2<\/sup>(c) 20 mA cm-2<\/sup>\u7535\u6d41\u5bc6\u5ea6\u4e0b\u7684\u5bf9\u79f0\u7535\u6c60\u5faa\u73af\u6027\u80fd\u5bf9\u6bd4\u56fe\u3002<\/p>\n

 <\/p>\n

\u56fe\u4e94\uff1a<\/strong>LCO\/AFN<\/strong>\u7535\u6c60\u7684\u7535\u5316\u5b66\u6027\u80fd\u3002<\/strong><\/p>\n

\"\"<\/p>\n

(a) LCO\/LAFN\u548cLCO\/Li\u7684\u500d\u7387\u7279\u6027\u56fe\uff1b<\/p>\n

(b)1C(c)2C(d)4C\u7535\u6d41\u5bc6\u5ea6\u4e0bLCO\/LAFN\u548cLCO\/Li\u7535\u6c60\u5145\u653e\u7535\u6027\u80fd\u5bf9\u6bd4\u56fe\u3002<\/p>\n

 <\/p>\n

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

\u901a\u8fc7\u4ecb\u5b54AlF\u00ad3<\/sub>\u6846\u67b6\u7684\u8fc7\u9502\u5316\u8fc7\u7a0b\uff0c\u5408\u6210\u4e86\u5177\u6709\u4ea4\u8054\u91d1\u5c5e\u9502\u5d4c\u5165\u7684LAFN\u4ecb\u5b54\u9aa8\u67b6\u7528\u4e8e\u91d1\u5c5e\u9502\u7535\u6c60\u8d1f\u6781\u3002\u8be5\u8bbe\u8ba1\u4e0d\u4ec5\u7ed9\u91d1\u5c5e\u9502\u63d0\u4f9b\u7a33\u5b9a\u5265\u79bb\u548c\u5d4c\u5165\u7684\u4e3b\u4f53\u6846\u67b6\uff0c\u800c\u4e14\u5229\u7528\u53cd\u5e94\u4ea7\u751f\u7684\u7edd\u7f18LiF\u7528\u4e8eAl4<\/sub>Li9<\/sub>\u7eb3\u7c73\u7c92\u5b50\u7684\u7535\u5316\u5b66\u4fdd\u62a4\uff0c\u4e5f\u4fc3\u8fdb\u4e86Li+<\/sup>\u6269\u6563\u4ece\u800c\u589e\u52a0\u4e86\u91d1\u5c5e\u9502\u5d4c\u5165\u7684\u5747\u4e00\u6027\uff0c\u56e0\u800cLAFN\u6291\u5236\u4e86\u9502\u679d\u6676\u7684\u751f\u957f\u5e76\u4e14\u8fd1\u4e4e\u96f6\u4f53\u79ef\u53d8\u5316\u3002\u4e0e\u9502\u7247\u5bf9\u6bd4\uff0cLAFN\u5728\u5bf9\u79f0\u7535\u6c60\u5145\u653e\u7535\u8fc7\u7a0b\u4e2d\u5c55\u73b0\u4e86\u66f4\u7a33\u5b9a\u7684\u5145\u653e\u7535\u5e73\u53f0\uff0c\u5728\u4f7f\u7528LCO\/LTO\u4f5c\u6b63\u6781\u7684\u5168\u7535\u6c60\u4e2d\u6709\u66f4\u9ad8\u7684\u9ad8\u500d\u7387\u5de5\u4f5c\u6027\u80fd\u548c\u5e93\u4f26\u6548\u7387\u3002<\/p>\n

 <\/p>\n

\u3010\u76f8\u5173\u6587\u732e\u63a8\u8350\u3011<\/strong><\/p>\n

\uff081\uff09D. Lin et al., Layered reduced graphene oxide with nanoscale interlayer gaps as a stable host for lithium metal anodes. Nat. Nanotechnol. 11, 626-632 (2016).<\/p>\n

\uff082\uff09Y. Liu et al., Lithium-coated polymeric matrix as a minimum volume-change and dendrite-free lithium metal anode. Nat. Commun. 7, 10992 (2016).<\/p>\n

 <\/p>\n

\u6587\u732e\u94fe\u63a5: Ultrahigh\u2013current density anodes with interconnected Li metal reservoir through overlithiation of mesoporous AlF3<\/sub> framework<\/a>(Science Advances: 10.1126\/sciadv.1701301)<\/p>\n

\u672c\u6587\u7531\u6750\u6599\u4eba\u65b0\u80fd\u6e90\u524d\u7ebfJespen\u4f9b\u7a3f\uff0c\u6750\u6599\u725b\u6574\u7406\u7f16\u8f91\u3002<\/p>\n

\u53c2\u4e0e\u65b0\u80fd\u6e90\u8bdd\u9898\u8ba8\u8bba\u8bf7\u52a0\u5165\u201c\u6750\u6599\u4eba\u65b0\u80fd\u6e90\u6750\u6599\u4ea4\u6d41\u7fa4 422065952\u201d\u3002<\/p>\n

\u6750\u6599\u725b\u7f51\u4e13\u6ce8\u4e8e\u8ddf\u8e2a\u6750\u6599\u9886\u57df\u79d1\u6280\u53ca\u884c\u4e1a\u8fdb\u5c55\uff0c\u8fd9\u91cc\u6c47\u96c6\u4e86\u5404\u5927\u9ad8\u6821\u7855\u535a\u751f\u3001\u4e00\u7ebf\u79d1\u7814\u4eba\u5458\u4ee5\u53ca\u884c\u4e1a\u4ece\u4e1a\u8005\uff0c\u5982\u679c\u60a8\u5bf9\u4e8e\u8ddf\u8e2a\u6750\u6599\u9886\u57df\u79d1\u6280\u8fdb\u5c55\uff0c\u89e3\u8bfb\u9ad8\u6c34\u5e73\u6587\u7ae0\u6216\u662f\u8bc4\u8ff0\u884c\u4e1a\u6709\u5174\u8da3\uff0c\u70b9\u6211\u52a0\u5165\u7f16\u8f91\u90e8<\/a>\u3002<\/p>\n

\u6750\u6599\u6d4b\u8bd5\uff0c\u6570\u636e\u5206\u6790\uff0c\u4e0a\u6d4b\u8bd5\u8c37<\/a>\uff01<\/strong><\/p>\n

 <\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

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