{"id":205729,"date":"2020-07-24T06:51:53","date_gmt":"2020-07-23T22:51:53","guid":{"rendered":"\/\/m.iemloyee.com\/?p=205729"},"modified":"2020-07-23T21:52:02","modified_gmt":"2020-07-23T13:52:02","slug":"%e6%b5%99%e5%b7%a5%e5%a4%a7adv-mater-%ef%bc%9a%e5%8e%9f%e4%bd%8d%e6%9e%84%e5%bb%ba%e5%af%8c%e5%90%ablif%e7%9a%84%e7%a8%b3%e5%ae%9a%e5%85%a8%e5%9b%ba%e6%80%81%e7%94%b5%e6%b1%a0%e7%95%8c%e9%9d%a2","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=205729","title":{"rendered":"\u6d59\u5de5\u5927Adv. Mater.\uff1a\u539f\u4f4d\u6784\u5efa\u5bcc\u542bLiF\u7684\u7a33\u5b9a\u5168\u56fa\u6001\u7535\u6c60\u754c\u9762\u53ca\u5176\u539f\u5b50\u7ea7\u89c2\u6d4b"},"content":{"rendered":"
\u3010\u5f15\u8a00\u3011<\/strong><\/p>\n \u00a0\u00a0\u00a0 \u9502\u91d1\u5c5e\u7535\u6c60\uff08LMBs\uff09\u7531\u4e8e\u91d1\u5c5e\u9502\uff08Li\uff09\u7684\u9ad8\u7406\u8bba\u5bb9\u91cf\uff083860 mAh g-1<\/sup>\uff09\u548c\u4f4e\u7535\u5316\u5b66\u52bf\uff08-3.04 V\uff09\u800c\u5f15\u8d77\u4e86\u6781\u5927\u7684\u5173\u6ce8\u3002\u4f46\u662fLi\u8d1f\u6781\u4e0a\u679d\u6676\u751f\u957f\u6291\u5236\u4e86LMBs\u7684\u5e94\u7528\uff0c\u901a\u8fc7\u754c\u9762SEI\u5de5\u7a0b\u3001\u7a33\u5b9a\u7684\u7535\u6781\u548c\u56fa\u6001\u7535\u89e3\u8d28\u8bbe\u8ba1\u7b49\u7b56\u7565\u53ef\u7f13\u89e3\u679d\u6676\u751f\u957f\u3002\u5176\u4e2d\uff0c\u56fa\u6001\u805a\u5408\u7269\u7535\u89e3\u8d28\u56e0\u5176\u51fa\u8272\u7684\u673a\u68b0\u6027\u80fd\u3001\u9ad8\u6b63\u6781\u7a33\u5b9a\u6027\u3001\u6210\u672c\u4f4e\u5ec9\u3001\u91cd\u91cf\u5bc6\u5ea6\u4f4e\u4ee5\u53ca\u53ef\u5927\u89c4\u6a21\u5236\u5907\u7b49\u4f18\u52bf\u5728LMBs\u4e2d\u88ab\u5e7f\u6cdb\u7814\u7a76\u3002\u4f46\u662f\uff0cLi+<\/sup>\u5728\u805a\u5408\u7269\u7535\u89e3\u8d28\u4e2d\u7684\u4f20\u8f93\u7f13\u6162\uff0cLi\/\u7535\u89e3\u8d28\u754c\u9762\u4eb2\u548c\u529b\u5dee\u7b49\u95ee\u9898\u963b\u788d\u4e86\u805a\u5408\u7269\u7535\u89e3\u8d28\u5728LMBs\u4e2d\u7684\u5927\u89c4\u6a21\u5e94\u7528\u3002\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u7531\u4e8e\u91d1\u5c5eLi\u7684\u8d85\u9ad8\u8fd8\u539f\u6027\uff0cLi\/\u805a\u73af\u6c27\u4e59\u70f7\uff08PEO\uff09\u754c\u9762\u5728\u5faa\u73af\u8fc7\u7a0b\u4e2d\u4f1a\u4e0d\u65ad\u53d8\u539a\uff0c\u65b0\u9c9c\u7684\u805a\u5408\u7269\u7535\u89e3\u8d28\u548c\u91d1\u5c5eLi\u53d1\u751f\u91cd\u590d\u53cd\u5e94\uff0c\u5bfc\u81f4\u7535\u5316\u5b66\u963b\u6297\u53d8\u9ad8\u548c\u4e0d\u5747\u5300\u7684\u8868\u9762\u5f62\u6001\u3002\u53e6\u5916\uff0cLiF\u5177\u6709\u4f4e\u7684Li+<\/sup>\u6269\u6563\u52bf\u5792\u548c\u51fa\u8272\u7684\u7535\u5b50\u7edd\u7f18\u6027\u7b49\u4f18\u52bf\uff0c\u5728\u6db2\u6001\u7535\u89e3\u6db2\u4e2d\u80fd\u591f\u4fc3\u8fdbLi+<\/sup>\u5728\u754c\u9762\u7684\u8f6c\u79fb\u548c\u5747\u5300\u7684Li\u6c89\u79ef\u3002\u56e0\u6b64\u5b9e\u73b0Li\/PEO\u754c\u9762\u4e0aLiF\u7684\u5747\u5300\u5206\u5e03\u662f\u89e3\u51b3\u754c\u9762\u95ee\u9898\u7684\u6709\u6548\u65b9\u6cd5\u3002\u7136\u800c\uff0c\u6539\u5584\u805a\u5408\u7269\u7535\u89e3\u8d28\u754c\u9762\u7684\u76f8\u5173\u7b56\u7565\uff0c\u7279\u522b\u662f\u7531\u4e8e\u805a\u5408\u7269\u548c\u78b1\u91d1\u5c5e\u6781\u9ad8\u7684\u5316\u5b66\u654f\u611f\u6027\uff0c\u5bf9\u754c\u9762\u8c03\u63a7\u673a\u5236\u7684\u5fae\u89c2\u7814\u7a76\u76ee\u524d\u4ecd\u76f8\u5bf9\u8f83\u5c11\u3002\u56e0\u6b64\u4f5c\u8005\u7814\u7a76\u4e86Li2<\/sub>S\u4f5c\u4e3aPEO\u7684\u7535\u89e3\u8d28\u7684\u6dfb\u52a0\u5242\u65f6\uff0c\u6539\u5584\u7684\u754c\u9762\u5bf9\u5168\u56fa\u6001\u7535\u6c60\u7684\u5f71\u54cd\u53ca\u5176\u673a\u5236\u3002\u00a0<\/strong><\/p>\n \u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n \u00a0\u00a0\u00a0 \u8fd1\u65e5\uff0c\u6d59\u6c5f\u5de5\u4e1a\u5927\u5b66\u9676\u65b0\u6c38\u6559\u6388<\/strong>\u3001\u5218\u80b2\u4eac\u535a\u58eb\uff08\u5171\u540c\u901a\u8baf\u4f5c\u8005\uff09<\/strong>\u7b49\u4eba\u91c7\u7528Li2<\/sub>S\u6dfb\u52a0\u5242\u6765\u4fee\u9970Li\/PEO\u754c\u9762\uff0c\u4ee5\u83b7\u5f97\u7a33\u5b9a\u7684\u5168\u56fa\u6001\u9502\u91d1\u5c5e\u7535\u6c60\uff08LMBs\uff09\u3002\u4f4e\u6e29\u900f\u5c04\u7535\u955c\uff08cryo-TEM\uff09\u7ed3\u679c\u8868\u660e\uff0c\u805a\u73af\u6c27\u4e59\u70f7\uff08PEO\uff09\u7535\u89e3\u8d28\u4e0eLi\u8d1f\u6781\u4e4b\u95f4\u5b58\u5728\u9576\u5d4c\u754c\u9762\uff0c\u754c\u9762\u4e0a\u968f\u673a\u5206\u5e03\u5927\u91cf\u7684Li\u3001Li2<\/sub>O\u3001LiOH\u548cLi2<\/sub>CO3<\/sub>\u6676\u7c92\u3002\u6b64\u5916\uff0ccryo-TEM\u53ef\u89c6\u5316\u7ed3\u5408\u5206\u5b50\u52a8\u529b\u5b66\u6a21\u62df\u663e\u793a\uff0cLi2<\/sub>S\u7684\u5f15\u5165\u52a0\u901f\u4e86N(CF3<\/sub>SO2<\/sub>)2<\/sub>–<\/sup>\u7684\u5206\u89e3\uff0c\u4fc3\u8fdbLi\/PEO\u754c\u9762\u4e0a\u5927\u91cfLiF\u7eb3\u7c73\u6676\u7684\u751f\u6210\u3002\u8fdb\u4e00\u6b65\u8bc1\u5b9e\u4e86LiF\u6291\u5236\u805a\u5408\u7269\u94fe\u4e2dC-O\u952e\u7684\u65ad\u88c2\uff0c\u9632\u6b62Li\u548cPEO\u95f4\u6301\u7eed\u754c\u9762\u53cd\u5e94\u7684\u4f5c\u7528\u3002\u56e0\u6b64\uff0c\u5bcc\u542bLiF\u754c\u9762\u7684\u6784\u7b51\u53ef\u4f7fLi-Li\u534a\u7535\u6c60\u7a33\u5b9a\u5faa\u73af1800 h\uff0c\u800c\u5168\u56fa\u6001LMBs\u4e5f\u8868\u73b0\u51fa\u66f4\u9ad8\u7684\u5faa\u73af\u7a33\u5b9a\u6027\u3002\u8fd9\u9879\u5de5\u4f5c\u4e3a\u9ad8\u6027\u80fd\u5168\u56fa\u6001LMBs\u7684\u8bbe\u8ba1\u5f00\u8f9f\u4e86\u4e00\u6761\u65b0\u9014\u5f84\u3002\u76f8\u5173\u6210\u679c\u4ee5\u201c<\/strong>In Situ Construction of a LiF-Enriched Interface for Stable All-Solid-State Batteries and its Origin Revealed by Cryo-TEM<\/strong>\u201d\u4e3a\u9898\u53d1\u8868\u5728Advanced Materials<\/strong>\u4e0a\u3002\u00a0<\/strong><\/p>\n \u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n \u56fe<\/strong> 1 <\/strong>Li\/PEO<\/strong>\u754c\u9762\u7684\u793a\u610f\u56fe\u548c\u5f62\u8c8c\u8868\u5f81<\/strong><\/p>\n \uff08a\uff0cb\uff09\u4f7f\u7528\uff08a\uff09PEO-LiTFSI\u7535\u89e3\u8d28\u548c\uff08b\uff09\u4fee\u9970\u540e\u7684PEO\u7535\u89e3\u8d28\u7684Li\/PEO\u754c\u9762\u53d8\u5316\u7684\u793a\u610f\u56fe\uff1b<\/p>\n \uff08c\uff09Li-Li\u7535\u6c60\u5faa\u73af250\u5708\u540eLi\/PEO\u754c\u9762\u7684SEM\u622a\u9762\u56fe\uff1b<\/p>\n \uff08d\uff0ce\uff09Li\/PEO\u754c\u9762\u5c42\u6b8b\u7559\u7269\u7684SEM\u56fe\u3002\u00a0<\/strong><\/p>\n \u56fe<\/strong> 2 <\/strong>PEO-LiTFSI<\/strong>\u548c<\/strong>PEO-LiTFSI-Li2<\/sub>S<\/strong>\u7535\u89e3\u8d28\u7684\u7535\u5316\u5b66\u6027\u80fd<\/strong><\/p>\n \uff08a\uff09\u572850\u00b0C\uff080.1 mA cm-2<\/sup>\uff09\u4e0b\uff0cLi-Li\u5bf9\u79f0\u7535\u6c60\u7684\u5faa\u73af\u6027\u80fd\uff1b<\/p>\n \uff08b\uff0cc\uff09Li-Li\u5bf9\u79f0\u7535\u6c60\u7684\u7535\u538b-\u65f6\u95f4\u66f2\u7ebf\uff1a\uff08b\uff0950-51\u5708\uff0c\uff08c\uff09169-170\u5708\uff1b<\/p>\n \uff08d\uff09\u4f7f\u7528\u4e0d\u540cSPE\u7684Li-Li\u5bf9\u79f0\u7535\u6c60\u7684\u7535\u5316\u5b66\u963b\u6297\u8c31\uff08EIS\uff09\u8c31\uff1b<\/p>\n \uff08e\uff0cf\uff09Li-Li\u7535\u6c60\u5faa\u73af250\u5708\u540eSPE\u8868\u9762\u7684SEM\u56fe\u3002\u00a0<\/strong><\/p>\n \u56fe<\/strong> 3 <\/strong>\u4f7f\u7528<\/strong>PEO-LiTFSI<\/strong>\u7535\u89e3\u8d28\u7684<\/strong>Li\/PEO<\/strong>\u754c\u9762\u7684<\/strong>cryo-TEM<\/strong>\u8868\u5f81<\/strong><\/p>\n \uff08a\uff0cb\uff09Li\u6c89\u79ef\u524d\u540e\u540c\u4e00\u4f4d\u7f6e\u7684TEM\u56fe\uff1b<\/p>\n \uff08c\uff09C\u3001O\u3001F\u3001S\u3001Cu\u5143\u7d20\u7684Mapping\u56fe\uff1b<\/p>\n \uff08d\uff09\u754c\u9762\u5904Li\u3001Li2<\/sub>O\u3001Li2<\/sub>CO3<\/sub>\u548cLiOH\u6676\u7c92\u7684TEM\u56fe\uff1b<\/p>\n \uff08e\uff09\u662f\uff08d\uff09\u7684\u5bf9\u5e94\u7684FFT\u56fe;<\/p>\n \uff08f\uff09\u754c\u9762\u7ed3\u6784\u7684\u793a\u610f\u56fe\uff1b<\/p>\n \uff08g-i\uff09Li\u3001Li2<\/sub>O\u548cLiOH\u6676\u4f53\u4e0e\u975e\u6676\u6001SPE\u95f4\u7684\u754c\u9762HRTEM\u56fe\u3002\u00a0<\/strong><\/p>\n \u56fe<\/strong> 4 <\/strong>\u4f7f\u7528<\/strong>PEO-LiTFSI-Li2<\/sub>S<\/strong>\u7535\u89e3\u8d28<\/strong>\u7684<\/strong>Li\/PEO<\/strong>\u754c\u9762\u7684<\/strong>cryo-TEM<\/strong>\u8868\u5f81<\/strong><\/p>\n \uff08a\uff0cb\uff09Li\u6c89\u79ef\u524d\u540e\u540c\u4e00\u4f4d\u7f6e\u7684TEM\u56fe\uff1b<\/p>\n \uff08c\uff09C\u3001O\u3001F\u3001S\u548cCu\u5143\u7d20\u7684Mapping\u56fe\uff1b<\/p>\n \uff08d\uff09Li\/PEO\u754c\u9762\u7684HRTEM\u56fe\u50cf\uff1b<\/p>\n \uff08e\uff09\u662f\uff08d\uff09\u7684\u76f8\u5e94FFT\u56fe\uff1b<\/p>\n \uff08f\uff09\u5bccLiF\u754c\u9762\u7684\u7ed3\u6784\u793a\u610f\u56fe\uff1b<\/p>\n \uff08g-i\uff09Li\u3001LiF\u548cLi2<\/sub>O\u6676\u4f53\u7684HRTEM\u56fe\u3002\u00a0<\/strong><\/p>\n \u56fe<\/strong> 5 <\/strong>\u754c\u9762\u4e2d\u5404\u79cd\u5316\u5b66\u6210\u5206\u7684\u5206\u5e03<\/strong><\/p>\n \uff08a\uff09\u5728Li\uff0cPEO-LiTFSI-Li2<\/sub>S\u7535\u89e3\u8d28\u548c\u754c\u9762\u5c42\u4e2dLi\u3001F\u3001O\u548cC\u5143\u7d20\u7684\u5206\u5e03\uff1b<\/p>\n \uff08b\uff091-3\u70b9\u4e2d\u5143\u7d20\u7684\u8d28\u91cf\u542b\u91cf\u5206\u5e03\u56fe\uff1b<\/p>\n \uff08c\uff09F\u5143\u7d20\u57281-3\u70b9\u7684XPS\u8c31\u56fe\u3002\u00a0<\/strong><\/p>\n \u56fe<\/strong> 6 <\/strong>\u6a21\u62df<\/strong>Li2<\/sub>S<\/strong>\u8bf1\u5bfc<\/strong>LiF<\/strong>\u7684\u5f62\u6210\u53ca<\/strong>XPS<\/strong>\u5206\u6790<\/strong><\/p>\n \uff08a\uff0cb\uff09\u5206\u5b50\u52a8\u529b\u5b66\u6a21\u62df(a) PEO-LiTFSI\u7535\u89e3\u8d28\u548c(b) PEO-LiTFSI-Li2<\/sub>S\u7535\u89e3\u8d28\u4e2dTFSI–<\/sup>\u7684\u5206\u89e3\uff1b<\/p>\n \uff08c\uff0cd\uff09XPS\u8c31\u8868\u5f81\u5faa\u73af\u524d\u540eSPE\u7684\u53d8\u5316\u3002\u00a0<\/strong><\/p>\n \u56fe<\/strong> 7 <\/strong>\u4f7f\u7528<\/strong>PEO-LiTFSI-Li2<\/sub>S<\/strong>\u548c<\/strong>PEO-LiTFSI<\/strong>\u7535\u89e3\u8d28\u7684\u5168\u56fa\u6001\u7535\u6c60\u5728<\/strong>50\u00a0o<\/sup>C<\/strong>\u7684\u7535\u5316\u5b66\u6027\u80fd<\/strong><\/p>\n \uff08a\uff09NCM 811\u6b63\u6781\u57282.7-4.2 V\u7684\u9996\u6b21\u5145\u653e\u7535\u66f2\u7ebf\uff1b<\/p>\n \uff08b\uff09\u4f7f\u7528NCM 811\u6b63\u6781\u7684\u5168\u56fa\u6001\u7535\u6c60\u57280.2 C\u7684\u5faa\u73af\u6027\u80fd\uff1b<\/p>\n \uff08c\uff09\u4f7f\u7528LiFePO4<\/sub>\u6b63\u6781\u7684\u5168\u56fa\u6001\u7535\u6c60\u57280.5 C\u7684\u5faa\u73af\u6027\u80fd\uff1b<\/p>\n \uff08d\uff09\u4f7f\u7528LiFePO4<\/sub>\u6b63\u6781\u7684\u5168\u56fa\u6001\u7535\u6c60\u57280.2\u30010.4\u30010.8\u30011.0\u548c2.0 C\u7684\u500d\u7387\u6027\u80fd\uff1b<\/p>\n \uff08e\uff0cf\uff09\u4f7f\u7528LiFePO4<\/sub>\u6b63\u6781\u7684\u5168\u56fa\u6001\u7535\u6c60\u5728\u5faa\u73af\u524d\u548c10\u300130\u300170\u3001100\u548c150\u5708\u540e\u7684\u963b\u6297\u53d8\u5316\u3002<\/p>\n \u3010\u5c0f\u7ed3\u3011<\/strong><\/p>\n \u8fd9\u9879\u5de5\u4f5c\u901a\u8fc7cryo-TEM\u5728\u539f\u5b50\u5c3a\u5ea6\u4e0a\u89c2\u5bdf\u4e86Li\u548cPEO\u57fa\u7535\u89e3\u8d28\u7684\u754c\u9762\uff0c\u53d1\u73b0Li\/PEO\u754c\u9762\u5448\u9a6c\u8d5b\u514b\u7ed3\u6784\uff0c\u5176\u4e2dLi, LiOH, Li2<\/sub>O\u548cLi2<\/sub>CO3<\/sub>\u7b49\u7eb3\u7c73\u6676\u968f\u673a\u5206\u5e03\u4e8e\u975e\u6676\u76f8\uff08\u53ef\u80fd\u662f\u6709\u673aLi\u5316\u5408\u7269\u6216\u805a\u5408\u7269\u7535\u89e3\u8d28\uff09\u4e2d\u3002\u66f4\u91cd\u8981\u7684\u662f\uff0cLi2<\/sub>S\u7684\u52a0\u5165\u53ef\u663e\u8457\u589e\u52a0\u754c\u9762\u5904LiF\u7ec4\u5206\uff0c\u4ee5\u63d0\u5347\u754c\u9762\u7684\u7a33\u5b9a\u6027\u548c\u79bb\u5b50\u4f20\u5bfc\u6027\uff0c\u88ab\u8bc1\u660e\u53ef\u663e\u8457\u6539\u5584Li\/PEO\u754c\u9762\u3002\u9ad8\u5206\u8fa8\u56fe\u50cf\u548cXPS\u8c31\u7684SnapMaps\u5206\u6790\u8bc1\u5b9e\u754c\u9762\u5904LiF\u7eb3\u7c73\u6676\u7684\u5bcc\u96c6\uff0c\u5f52\u56e0\u4e8eLi2<\/sub>S\u53ef\u4fc3\u8fdbLiTFSI\u5206\u89e3\u6210LiF\u3002\u8fdb\u4e00\u6b65\u5206\u6790\u53d1\u73b0\uff0cLiF\u7eb3\u7c73\u6676\u53ef\u4ee5\u6709\u6548\u7684\u589e\u52a0\u79bb\u5b50\u6269\u6563\u6027\u80fd\uff0c\u6291\u5236C-O\u952e\u7684\u65ad\u952e\uff0c\u5e76\u963b\u6b62Li\u548cPEO\u7684\u6301\u7eed\u526f\u53cd\u5e94\u3002\u57fa\u4e8e\u539f\u5b50\u7ea7\u522b\u89c2\u6d4b\u5f15\u5bfc\u7684\u754c\u9762\u8bbe\u8ba1\uff0cLi-Li\u534a\u7535\u6c60\u53ef\u7a33\u5b9a\u5faa\u73af\u8d85\u8fc71800\u00a0h\uff0cLi-LiFePO4<\/sub>\u548cLi-NCM811\u5168\u7535\u6c60\u5177\u6709\u66f4\u4f18\u5f02\u7684\u7535\u5316\u5b66\u6027\u80fd\u3002\u672c\u5de5\u4f5c\u89e3\u51b3\u4e86Li\/\u7535\u89e3\u8d28\u754c\u9762\u539f\u5b50\u89c2\u6d4b\u7684\u6311\u6218\uff0c\u5bf9\u4e8e\u6784\u5efa\u7a33\u5b9a\u7684\u754c\u9762\u548c\u9ad8\u6027\u80fd\u7684\u5168\u56fa\u6001\u9502\u7535\u6c60\u5177\u6709\u91cd\u8981\u7684\u53c2\u8003\u610f\u4e49\u3002<\/p>\n<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n