{"id":234456,"date":"2022-03-17T06:00:05","date_gmt":"2022-03-16T22:00:05","guid":{"rendered":"\/\/m.iemloyee.com\/?p=234456"},"modified":"2022-03-16T14:01:19","modified_gmt":"2022-03-16T06:01:19","slug":"%e6%9c%80%e6%96%b0advanced-materials%ef%bc%9a%e6%96%b0%e5%bf%ab%e5%85%85%e6%9d%90%e6%96%99lto%e5%8a%a9%e5%8a%9b%e7%a8%b3%e5%ae%9a%e5%bf%ab%e9%80%9f%e5%85%85%e7%94%b5%e7%9a%84%e9%94%82%e7%a6%bb","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=234456","title":{"rendered":"\u6700\u65b0Advanced Materials\uff1a\u65b0\u5feb\u5145\u6750\u6599LTO\u52a9\u529b\u7a33\u5b9a\u5feb\u901f\u5145\u7535\u7684\u9502\u79bb\u5b50\u7535\u6c60"},"content":{"rendered":"

\u3010\u4e00\u3001<\/strong>\u80cc\u666f\u4ecb\u7ecd\u3011<\/strong><\/p>\n

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\u5c16\u6676\u77f3\u949b\u9178\u9502(Li4<\/sub>Ti5<\/sub>O12<\/sub>, LTO)\u662f\u4e00\u79cd\u5f88\u6709\u524d\u9014\u7684\u5feb\u5145\u8d1f\u6781\u6750\u6599\uff0c\u4e0e\u9502\u79bb\u5b50\u7535\u6c60\u7684\u4f20\u7edf\u8d1f\u6781\u6750\u6599\u77f3\u58a8\u76f8\u6bd4\uff0c\u5177\u6709\u4f18\u5f02\u7684\u500d\u7387\u6027\u80fd\u548c\u5b89\u5168\u6027\u80fd\u3002\u4f46\u7531\u4e8eLTO\u6750\u6599\u672c\u5f81\u8f83\u4f4e\u7684\u7535\u5b50\u7535\u5bfc\uff08(~10-13<\/sup>\u00a0S cm-1<\/sup>\uff09\u548c\u79bb\u5b50\u6269\u6563\u7cfb\u6570(10-9<\/sup>~10-13<\/sup>\u00a0cm2<\/sup>\u00a0S-1<\/sup>)\uff0c\u9700\u8981\u8fdb\u4e00\u6b65\u4f18\u5316\u4ee5\u6ee1\u8db3\u5feb\u901f\u5145\u7535\u7684\u5e94\u7528\u3002\u867d\u7136\u76ee\u524dLi+<\/sup>\u5728LTO\u6676\u683c\u4e2d\u6269\u6563\u7684\u52a8\u529b\u5b66\u8def\u5f84\u548c\u5feb\u5145\u673a\u5236\u4ecd\u4e0d\u6e05\u695a\uff0c\u4f46\u6700\u8fd1\u7684\u7814\u7a76\u8868\u660e\uff0c\u6cbf\u76f8\u754c\u65b9\u5411\u7684\u4e9a\u7a33\u6001\u4e2d\u95f4\u4f53(Li4+x<\/sub>Ti5<\/sub>O12<\/sub>\uff1b0\u2264x\u22643)\u8d77\u5173\u952e\u4f5c\u7528\u3002\u4e3a\u4e86\u63d0\u9ad8\u7535\u5b50\u5bfc\u7535\u6027\u548cLi+<\/sup>\u6269\u6563\u7cfb\u6570\uff0c\u4eba\u4eec\u4e5f\u5c1d\u8bd5\u4e86\u51e0\u79cd\u7b56\u7565\uff0c\u5305\u62ec\u5143\u7d20\u63ba\u6742\u3001\u7f3a\u9677\u5de5\u7a0b\u4ee5\u53ca\u76f8\u4fee\u9970\u3002\u603b\u7684\u6765\u8bf4\uff0c\u6742\u539f\u5b50\u63ba\u6742\u548c\u5f15\u5165\u6c27\u7a7a\u4f4d\u7f3a\u9677\u53ef\u4ee5\u63d0\u9ad8LTO\u7684\u7535\u5b50\u5bfc\u7535\u6027\uff0c\u8fdb\u4e00\u6b65\u63d0\u9ad8LTO\u7684\u500d\u7387\u80fd\u529b\uff1b\u76f8\u4fee\u9970\u53ef\u4ee5\u7ec6\u5316LTO\u7684\u7eb3\u7c73\u7ed3\u6784\uff0c\u589e\u5f3a\u5176\u8d5d\u7535\u5bb9\u7279\u6027\u3002<\/p>\n

\u76ee\u524d\uff0c\u5927\u5c3a\u5bf8\u7684\u591a\u6676\u6750\u6599\u5df2\u7387\u5148\u5f97\u5230\u5e94\u7528\uff0c\u5c24\u5176\u662f\u5c06\u4e00\u6b21\u591a\u6676\u9897\u7c92\u805a\u96c6\u6210\u5fae\u7c73\u7ea7\u7684\u4e8c\u6b21\u5927\u9897\u7c92\u5e94\u7528\u66f4\u5e7f\u6cdb\u3002\u7136\u800c\uff0c\u591a\u6676\u6750\u6599\u7684\u5bc6\u96c6\u805a\u96c6\u548c\u8f83\u5927\u7684\u9897\u7c92\u5c3a\u5bf8\u963b\u6b62\u4e86\u7535\u89e3\u8d28\u5230\u8fbe\u5185\u90e8\u7684\u521d\u7ea7\u7c92\u5b50\uff0c\u5bfc\u81f4Li+<\/sup>\u79bb\u5b50\u7684\u6269\u6563\u8ddd\u79bb\u5927\u5927\u589e\u52a0\u3002\u6b64\u5916\uff0c\u591a\u6676\u6750\u6599\u901a\u5e38\u542b\u6709\u5927\u91cf\u6676\u754c\uff0c\u963b\u788d\u7535\u5b50\u4f20\u5bfc\u548cLi+<\/sup>\u6269\u6563\u3002\u56e0\u6b64\uff0c\u5355\u6676\u7eb3\u7c73\u7ea7\u7535\u6781\u6750\u6599\u65e2\u80fd\u591f\u53bb\u9664\u6750\u6599\u5185\u90e8\u6676\u754c\uff0c\u6d88\u9664Li+<\/sup>\u5728\u6676\u754c\u5904\u7684\u6269\u6563\u80fd\u5792\uff0c\u8fd8\u80fd\u6781\u5927\u7a0b\u5ea6\u7f29\u77ed\u56fa\u6001LTO\u6750\u6599\u4e2dLi+<\/sup>\u7684\u6269\u6563\u957f\u5ea6\uff0c\u660e\u663e\u63d0\u9ad8LTO\u7684\u500d\u7387\u6027\u80fd\u3002\u56e0\u6b64\uff0c\u591a\u79cd\u591a\u6837\u7eb3\u7c73\u7ed3\u6784\u7684LTO\u88ab\u5236\u5907\u51fa\u6765\uff0c\u5305\u62ec\u7eb3\u7c73\u7c92\u5b50\u3001\u7eb3\u7c73\u7ebf\u3001\u7eb3\u7c73\u7ba1\u3001\u7eb3\u7c73\u7247\u3001\u591a\u5b54\u7403\u4f53\u548c\u5206\u5c42\u7eb3\u7c73\u7ed3\u6784\u7b49\u3002\u7136\u800c\uff0c\u5355\u6676\u7eb3\u7c73\u7535\u6781\u7684\u5236\u5907\u9c9c\u6709\u62a5\u9053\uff0c\u800c\u76ee\u524d\u7eb3\u7c73\u7ed3\u6784\u7535\u6781\u6750\u6599\u4ecd\u7136\u5b58\u5728\u4e00\u4e9b\u7f3a\u9677\uff0c\u5305\u62ec\u6676\u754c\u589e\u52a0\u3001\u5faa\u73af\u7a33\u5b9a\u6027\u964d\u4f4e\u548c\u4f53\u79ef\u80fd\u91cf\u5bc6\u5ea6\u7b49\uff0c\u9650\u5236\u4e86\u5176\u89c4\u6a21\u63a8\u5e7f\u548c\u5de5\u7a0b\u5e94\u7528\u3002<\/p>\n

\"\"<\/p>\n

\u3010\u4e8c\u3001<\/strong>\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n

2022\u5e743\u67089\u65e5\uff0c\u4e2d\u56fd\u77f3\u6cb9\u52d8\u63a2\u5f00\u53d1\u7814\u7a76\u9662\u65b0\u80fd\u6e90\u7814\u7a76\u4e2d\u5fc3\u91d1\u65ed\u535a\u58eb\u3001\u674e\u5efa\u660e\u535a\u58eb\u7b49\u8054\u5408\u4e2d\u56fd\u79d1\u5b66\u6280\u672f\u5927\u5b66\u7126\u6dd1\u7ea2\u526f\u7814\u7a76\u5458\u548c\u5317\u4eac\u5de5\u4e1a\u5927\u5b66\u95eb\u9e4f\u98de\u6559\u6388\u7b49\u4eba\u62a5\u9053\u4e86\u5229\u7528\u7b80\u5355\u5408\u6210\u65b9\u6cd5\u5236\u5907\u5177\u6709\u4ecb\u5b54\u5355\u6676\u7ed3\u6784\u7684LTO\u5fae\u7c73\u68d2\u6750\u6599\uff08MSC-LTO\uff09\uff0c\u7535\u955c\u7ed3\u679c\u8bc1\u5b9e\u8be5MSC-LTO\u5fae\u7c73\u68d2\u4e0d\u4ec5\u5177\u6709\u5747\u5300\u7684\u591a\u5b54\u7ed3\u6784\u548c\u5b9a\u5411\u751f\u957f\u7684\u7279\u5f81\uff0c\u5e76\u4e14\u6bcf\u4e00\u6839MSC-LTO\u5fae\u7c73\u68d2\u90fd\u662f\u4e00\u4e2a\u5355\u6676\u3002MSC-LTO\u72ec\u7279\u7684\u7ed3\u6784\u7279\u70b9\u8d4b\u4e88\u8fd9\u79cd\u6750\u6599\u4f18\u5f02\u7684\u7535\u5316\u5b66\u6027\u80fd\uff0c\u4f7f\u5f97\u9502\u79bb\u5b50\u5728\u65e0\u6676\u754c\u3001\u591a\u5b54\u7ed3\u6784\u4e2d\u7684\u6269\u6563\u80fd\u5792\u5927\u5927\u964d\u4f4e\uff0c\u5e76\u4e14\u5728\u56fa\u76f8\u4e2d\u7684\u6269\u6563\u8ddd\u79bb\u53d8\u77ed\uff0c\u56e0\u6b64\u5177\u6709\u826f\u597d\u7684\u7535\u8377\u4f20\u8d28\u6027\u80fd\u4f18\u52bf\u3002MSC-LTO\u7535\u6781\u5c55\u73b0\u51fa\u4f18\u5f02\u7684\u500d\u7387\u6027\u80fd\u548c\u826f\u597d\u7684\u5faa\u73af\u7a33\u5b9a\u6027\uff0c\u572850C\u4e0b\u53ef\u5b9e\u73b0~169\u00a0mAh g-1<\/sup>\u7684\u8d85\u9ad8\u653e\u7535\u6bd4\u5bb9\u91cf\uff0c\u572820C\u4e0b\u5faa\u73af10,000\u6b21\u540e\u4ecd\u53ef\u4fdd\u6301~92%\u7684\u653e\u7535\u6bd4\u5bb9\u91cf\u3002\u8fd9\u9879\u5de5\u4f5c\u4e3a\u5f00\u53d1\u7a33\u5b9a\u5feb\u901f\u5145\u7535\u7684\u9502\u79bb\u5b50\u7535\u6c60\u4ea7\u54c1\u63d0\u4f9b\u4e86\u5168\u65b0\u7684\u6750\u6599\u8bbe\u8ba1\u601d\u8def\u4e0e\u5de5\u7a0b\u7b56\u7565\uff0c\u7814\u7a76\u6210\u679c\u4ee5 \u201cMesoporous\u00a0single-crystal lithium titanate enabling fast-charging Li-ion\u00a0batteries\u201d \u4e3a\u9898\u53d1\u8868\u5728\u6750\u6599\u9886\u57df\u56fd\u9645\u9876\u7ea7\u671f\u520a\u300aAdvanced\u00a0Materials\u300b\u4e0a\u3002<\/p>\n

\u3010\u4e09\u3001\u56fe\u6587\u89e3\u8bfb\u3011<\/strong><\/p>\n

\u56fe1<\/strong>. <\/strong>\u9502\u79bb\u5b50\u5728\u591a\u6676LTO\u4e0eMSC-LTO\u7535\u6781\u4e2d\u7684\u4f20\u8f93\u8fc7\u7a0b\u6bd4\u8f83<\/strong><\/p>\n

\"\"<\/p>\n

(a)\u5728\u591a\u6676LTO\u7535\u6781\u4e2d\uff0cLi+<\/sup>\u9700\u8981\u6269\u6563\u8f83\u957f\u7684\u8ddd\u79bb\uff0c\u5e76\u4e14\u9700\u8981\u514b\u670d\u5927\u91cf\u6676\u754c\u624d\u80fd\u5230\u8fbe\u7535\u89e3\u6db2\uff1b(b)\u5728MSC-LTO\u7535\u6781\u901a\u8fc7\u7535\u89e3\u6db2\u7684\u6e17\u900f\u53ef\u4ee5\u5927\u5927\u7f29\u77edLi+<\/sup>\u7684\u8f93\u9001\u8ddd\u79bb\uff0c\u5e76\u4e14\u5728\u56fa\u76f8\u4e2d\u6ca1\u6709\u6676\u754c\u7684\u963b\u788d\u3002<\/p>\n

 <\/p>\n

\u56fe<\/strong>2. <\/strong>MSC-LTO\u5fae\u68d2\u7684\u8868\u5f81<\/strong><\/p>\n

\"\"<\/p>\n

(a)MSC-LTO\u5fae\u68d2\u5728\u4f4e\u500d\u7387\u4e0b\u7684\u5178\u578b\u900f\u5c04\u7535\u955c\u56fe\u50cf\uff1b(b-d)\u6765\u81ea(a)\u7684\u4e09\u4e2a\u4e0d\u540c\u533a\u57df\u7684\u4e09\u79cdSAED\u56fe\uff0c\u6cbf[110]\u6676\u5e26\u8f74\u7684SAED\uff0c\u8868\u660e\u5355\u6676LTO\u5fae\u6676\u662f\u6cbf<001 >\u65b9\u5411\u751f\u957f\uff1b(e)\u9ad8\u500dTEM\u7535\u955c\u663e\u793a\u51fa\u591a\u5b54\u5f62\u6001\uff1b(f,\u00a0g) LTO\u5fae\u68d2\u7684\u8868\u5c42HRTEM\u56fe\u50cf\uff1b(g)\u4e2d\u63d2\u56fe\u7684HRTEM\u6676\u683c\u95f4\u8ddd\u4e3a4.8\u00c5\u3002<\/p>\n

 <\/p>\n

\u56fe3.<\/strong>\u00a0<\/strong>MSC-LTO\u5fae\u68d2\u7684\u7ed3\u6784\u8868\u5f81<\/strong><\/p>\n

\"\"<\/p>\n

(a,\u00a0b)\u5355\u4e2aMSC-LTO\u5fae\u68d2\u7684STEM-HAADF\u56fe\u50cf\uff1b\u00a0(c,\u00a0d)\u5355\u4e2aMSC-LTO\u5fae\u5b54\u7684STEM-HAADF\u70b9\u9635\u56fe\u50cf\uff0c(c)\u4e2d\u6807\u51fa\u4e86\u66b4\u9732\u7684{111}\u9762\uff1b\u56fe(d)\u7684\u539f\u5b50\u6392\u5217\u4e0eLi4<\/sub>Ti5<\/sub>O12<\/sub>\u4e2d[110]\u8f74\u5c16\u6676\u77f3\u7684\u6392\u5217\u4e00\u81f4\u3002<\/p>\n

 <\/p>\n

\u56fe4.<\/strong>\u00a0<\/strong>\u6a2a\u65ad\u9762\u7684STEM-HAADF\u548c3D\u65ad\u5c42\u626b\u63cf<\/strong><\/p>\n

\"\"<\/p>\n

(a,b) \u5355\u4e2aMSC-LTO\u5fae\u68d2\u622a\u9762\u7684\u4f4e\u500d\u548c\u9ad8\u500d\u653e\u5927\u7684STEM-HAADF\u56fe\u50cf\u3002\u7ea2\u8272\u7bad\u5934\u8868\u793a\u6746\u5185\u7684\u901a\u9053;\uff1b(c)\u5355\u4e2aMSC-LTO\u5fae\u68d2\u9525\u5f62\u6837\u54c1\u7684STEM-HAADF\u56fe\u50cf\uff1b(d)\u622a\u9762\u56fe\u50cf\u7684\u4e09\u7ef4\u91cd\u5efa\u7684x-z\u6b63\u4f4d\u5207\u7247,\u5b54\u9699\u5728(d)\u4e2d\u4ee5\u9ed1\u70b9\u7684\u5f62\u5f0f\u51fa\u73b0\uff1b(e)\u7b49\u8868\u9762\u56fe\u663e\u793a\u4e86\u9525\u5f62\u8bd5\u6837\u5185\u90e8\u7684\u5b54\u9699\u5206\u5e03\uff1b(f)\u9525\u72b6\u8bd5\u6837\u7684\u6a2a\u5207\u9762\uff0c\u663e\u793a\u76f8\u4e92\u8fde\u901a\u7684\u5b54\u9699\u7ed3\u6784 (\u7070\u8272\u90e8\u5206)\u3002<\/p>\n

 <\/p>\n

\u56fe5.<\/strong>\u00a0<\/strong>MSC-LTO\u5fae\u68d2\u7684\u7535\u5316\u5b66\u6027\u80fd<\/strong><\/p>\n

\"\"<\/p>\n

(a)\u00a0MSC-LTO\u5fae\u68d2\u8d1f\u6781\u548cLTO\u9897\u7c92\u8d1f\u6781\u572820C\u7684\u957f\u5faa\u73af\u6027\u80fd\uff1b(b) MSC-LTO\u5fae\u68d2\u8d1f\u6781\u548cLTO\u9897\u7c92\u8d1f\u6781\u7684\u500d\u7387\u6027\u80fd\uff1b(c)\u00a0\u6bd4\u8f83MSC-LTO\u5fae\u7535\u6781\u4e0e\u6587\u732e\u62a5\u9053\u7684LTO\u57fa\u7535\u6781\u7684\u500d\u7387\u6027\u80fd\uff1b(d)\u00a0MSC-LTO\u5fae\u68d2\u8d1f\u6781\u548cLTO\u9897\u7c92\u8d1f\u6781\u7684\u5faa\u73af\u4f0f\u5b89\u66f2\u7ebf\uff0c\u626b\u901f\u4e3a0.5mV s-1<\/sup>\uff1b(e) \u5f00\u8def\u7535\u538b\u4e0bZRe<\/sub>\u548c\u03c9-1\/2<\/sup>\u7684\u7ebf\u6027\u54cd\u5e94\u3002<\/p>\n

 <\/p>\n

\u56fe6.<\/strong>\u00a0<\/strong>MSC-LTO\u5fae\u68d2\u7684\u76f8\u6f14\u5316\u53ca\u5355\u6676\u7ed3\u6784\u8868\u5f81<\/strong><\/p>\n

\"\"<\/p>\n

(a)\u00a0MSC-LTO\u5fae\u7c73\u68d2\u5145\u653e\u7535\u8fc7\u7a0b\u4e2d(111)\u3001(311)\u3001(400)\u3001(331)\u3001(333)\u548c(440)\u6676\u9762\u7684\u539f\u4f4dXRD\u56fe\u8c31\uff1b(b-e)\u00a0MSC-LTO\u5fae\u7c73\u68d2\u5d4c\u9502\u8fc7\u7a0b\u4e2d\u7684\u539f\u4f4dSAED\u56fe\uff1b(f-i) MSC-LTO\u5fae\u7c73\u68d2\u572820C\u5faa\u73af10000\u5708\u540e\u7684\u5fae\u89c2\u7ed3\u6784\u548c\u5f62\u8c8c\u8868\u5f81\uff0c(f)STEM-HAADF\u56fe\u50cf\uff0c(g)TEM\u56fe\u50cf\uff0c\u63d2\u56fe\u4e3a\u6cbf[110]\u6676\u5e26\u8f74\u7684SAED\u56fe\uff0c(h,i) HRTEM\u56fe\u50cf\u3002<\/p>\n

\u3010\u56db\u3001\u5c0f\u7ed3\u3011<\/strong><\/p>\n

\u5728\u8fd9\u9879\u5de5\u4f5c\u4e2d\uff0c\u4f5c\u8005\u5c55\u793a\u4e86\u5229\u7528\u7b80\u5355\u65b9\u6cd5\u5236\u5907\u4e86\u4e00\u79cd\u4ecb\u5b54\u5355\u6676\u5fae\u7c73\u68d2\u72b6LTO\u6750\u6599\u3002MSC-LTO\u5fae\u7c73\u68d2\u72ec\u7279\u7684\u5355\u6676\u6027\u8d28\u548c\u4ecb\u5b54\u7ed3\u6784\u662f\u7531\u5747\u5300\u7684LTO\u516b\u9762\u4f53\u5b9a\u5411\u6392\u5217\u5f97\u5230\u7684\u3002LTO\u5fae\u68d2\u5185\u90e8\u76f8\u4e92\u8fde\u901a\u7684\u5b54\u9699\u663e\u8457\u7f29\u77ed\u4e86\u79bb\u5b50\u6269\u6563\u957f\u5ea6\uff0c\u6539\u5584\u4e86\u7535\u89e3\u6db2\u7684\u4f20\u8d28\u8fc7\u7a0b\u3002\u540c\u65f6\uff0c\u5355\u6676\u6027\u8d28\u663e\u8457\u6d88\u9664\u4e86\u6676\u754c\u8de8\u8d8a\uff0c\u63d0\u4f9b\u826f\u597d\u7684\u5faa\u73af\u7a33\u5b9a\u6027\u6846\u67b6\u7684\u540c\u65f6\uff0c\u6709\u6548\u7f29\u77ed\u4e86\u9502\u79bb\u5b50\u6269\u6563\u8def\u5f84\u3002\u8be5\u5de5\u4f5c\u4e0d\u4ec5\u4e3a\u5f00\u53d1\u5feb\u5145\u7684\u9502\u79bb\u5b50\u7535\u6c60\u7535\u6781\u6750\u6599\u63d0\u4f9b\u4e86\u5168\u65b0\u7684\u6750\u6599\u8bbe\u8ba1\u601d\u8def\uff0c\u4e3a\u4ecb\u5b54\u5355\u6676\u6750\u6599\u5728\u80fd\u91cf\u5b58\u50a8\u4e0e\u8f6c\u5316\u9886\u57df\u7684\u5e94\u7528\u63d0\u4f9b\u4e86\u5de5\u7a0b\u7b56\u7565\uff0c\u800c\u4e14\u6df1\u5316\u4e86\u5bf9\u5feb\u5145\u7535\u6781\u53cd\u5e94\u52a8\u529b\u5b66\u7684\u7406\u89e3\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1aMesoporous single-crystal lithium titanate enabling fast-charging Li-ion batteries\u00a0(Advanced Materials \u00a0\u00a0DOI:\u00a010.1002\/adma.202109356)<\/p>\n

\u672c\u6587\u7531\u4f5c\u8005\u4f9b\u7a3f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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