{"id":230337,"date":"2021-12-04T06:35:04","date_gmt":"2021-12-03T22:35:04","guid":{"rendered":"\/\/m.iemloyee.com\/?p=230337"},"modified":"2021-12-03T22:51:24","modified_gmt":"2021-12-03T14:51:24","slug":"%e5%8e%a6%e5%a4%a7%e6%9d%a8%e5%8b%87%e6%95%99%e6%8e%88nature%e5%ad%90%e5%88%8a%e5%ae%9a%e9%87%8f%e5%88%86%e6%9e%90%e9%87%91%e5%b1%9e%e7%94%b5%e6%b1%a0%e5%a4%b1%e6%95%88%e8%bf%8e%e6%9d%a5%e9%87%8d","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=230337","title":{"rendered":"\u53a6\u5927\u6768\u52c7\u6559\u6388Science Advances:\u5b9a\u91cf\u5206\u6790\u91d1\u5c5e\u7535\u6c60\u5931\u6548\u8fce\u6765\u91cd\u5927\u7a81\u7834\uff01"},"content":{"rendered":"
\u3010\u5f15\u8a00\u3011<\/b><\/strong><\/p>\n \u9502\u679d\u6676\u7684\u8fde\u7eed\u5f62\u6210\u3001\u7535\u9694\u79bb\u9502\u91d1\u5c5e-\u201c\u6b7b\u9502\u201d\u548c\u56fa\u4f53\u7535\u89e3\u8d28\u4e2d\u95f4\u76f8\uff08SEIs\uff09\u7684\u4e0d\u53ef\u9006\u5f62\u6210\uff0c\u963b\u788d\u4e86\u9ad8\u80fd\u91cf\u5bc6\u5ea6\u9502\u91d1\u5c5e\u7535\u6c60\uff08LMBs\uff09\u7684\u5b9e\u9645\u5e94\u7528\u3002\u4e3a\u4e86\u5ef6\u957fLMBs\u7684\u5faa\u73af\u5bff\u547d\uff0c\u5df2\u7ecf\u63d0\u51fa\u4e86\u8bf8\u591a\u7b56\u7565\uff0c\u4f46\u5176\u5931\u6548\u673a\u5236\u4ecd\u7136\u96be\u4ee5\u6349\u6478\uff0c\u65e0\u6cd5\u89e3\u91ca\u4e3a\u4ec0\u4e48\u67d0\u4e9b\u7b56\u7565\u6709\u6548\u800c\u5176\u4ed6\u7b56\u7565\u65e0\u6548\u3002\u57fa\u4e8e\u4e4b\u524d\u7684\u7814\u7a76\uff0c\u4e3b\u8981\u6709\u4e24\u79cd\u7ed3\u8bba\uff1a\u4e00\u3001\u91c7\u7528\u975e\u539f\u4f4d\u5b9a\u91cf\u6280\u672f-\u6ef4\u5b9a\u6c14\u76f8\u8272\u8c31 (TGC) \u6765\u91cf\u5316\u201c\u6b7b\u9502\u201d\u548cSEI \uff0c\u5e76\u786e\u5b9a\u4e86\u524d\u8005\u662f\u521d\u59cb\u5faa\u73af\u8fc7\u7a0b\u4e2d\u9502\u5931\u6d3b\u7684\u7f6a\u9b41\u7978\u9996<\/strong>\u3002\u7136\u540e\u62a5\u9053\u4e86\u53e6\u4e00\u9879\u7ed3\u54087<\/sup>Li\u6838\u78c1\u5171\u632f\uff08NMR\uff09\u5149\u8c31\u548cTGC\u7684\u7814\u7a76\uff0c\u5728\u94dc\u96c6\u6d41\u4f53\u4e0a\u9502\u6c89\u79ef\/\u5265\u79bb\u65f6\u91cf\u5316\u6b7b\u9502\u548cSEI\u3002\u7136\u800c\uff0c\u8fd9\u79cd\u5177\u6709\u7834\u574f\u6027\u7684\u5faa\u73af\u540e\u5206\u6790\u5f88\u96be\u76d1\u6d4b\u7535\u5316\u5b66\u5faa\u73af\u8fc7\u7a0b\u4e2d\u6216\u539f\u4f4d\u6761\u4ef6\u4e0b\u6b7b\u9502\u7684\u52a8\u6001\u6f14\u5316\u8fc7\u7a0b\u3002<\/p>\n \u4e8c\u3001\u7814\u7a76\u8005\u4f7f\u7528\u539f\u4f4dNMR\u5149\u8c31\u5bf9Cu||LiFePO<\/strong>4<\/sub><\/strong>\u65e0\u8d1f\u6781\u7535\u6c60\uff08AFB\uff09\u4e2d\u524d5\u5708\u4e2d\u7684\u6b7b\u9502\u548cSEI\u8fdb\u884c\u91cf\u5316\u3002\u89c2\u5bdf\u5230\uff0c\u5bf9\u4e8e\u7814\u7a76\u7684\u6240\u6709\u7535\u89e3\u6db2\uff0cSEI\u7684\u5f62\u6210\u6bd4\u6b7b\u9502\u7684\u5f62\u6210\u66f4\u660e\u663e\uff0c\u8fd9\u4e00\u7ed3\u679c\u4e0e\u4e4b\u524d\u7684TGC\u6d4b\u8bd5\u7ed3\u679c\u76f8\u77db\u76fe<\/strong>\u3002\u8fd9\u4e9b\u4e0d\u4e00\u81f4\u7684\u7ed3\u8bba\u8868\u660e\uff0c\u5f88\u96be\u901a\u8fc7\u5355\u4e00\u6280\u672f\u51c6\u786e\u91cf\u5316\u6b7b\u9502\u3002\u56e0\u6b64\uff0c\u8feb\u5207\u9700\u8981\u76f8\u4e92\u9a8c\u8bc1\u6216\u72ec\u7acb\u53c2\u8003\u6765\u5efa\u7acb\u5b9a\u91cf\u6280\u672f\u7684\u57fa\u51c6\uff0c\u4ee5\u83b7\u5f97\u53ef\u9760\u7684\u5b9a\u91cf\u7ed3\u679c\u3002\u540c\u65f6\uff0c\u4ee5\u524d\u7684\u5de5\u4f5c\u53ea\u5173\u6ce8\u5faa\u73af\u7684\u521d\u59cb\u9636\u6bb5\uff0c\u4f46\u5bf9\u5ef6\u957f\u5faa\u73af\u4e0b\u7684\u5931\u6548\u673a\u5236\u7814\u7a76\u662f\u7f3a\u4e4f\u7684\uff0c\u4e14\u8fd9\u4e5f\u662f\u5b9e\u73b0LMBs\u957f\u5faa\u73af\u5bff\u547d\u7684\u5173\u952e\u3002\u6709\u5145\u5206\u8bc1\u636e\u8868\u660e\uff0cLMBs\u7684\u5e93\u4f26\u6548\u7387\uff08CE\uff09\u4f1a\u5728\u957f\u5faa\u73af\u5468\u671f\u4e0b\u51fa\u73b0\u6ce2\u52a8\u6216\u8005\u6ce2\u52a8\u3002\u56e0\u6b64\uff0c\u53ef\u4ee5\u5408\u7406\u63a8\u6d4b\u957f\u65f6\u95f4\u5faa\u73af\u4e0b\u7684\u7535\u6c60\u5931\u6548\u673a\u5236\u4e0e\u521d\u59cb\u72b6\u6001\u4e0d\u540c\u3002\u5982\u679c\u4e0d\u9610\u660e\u7535\u6c60\u5728\u6574\u4e2a\u5faa\u73af\u5bff\u547d\u8fc7\u7a0b\u4e2d\u7684\u5931\u6548\u673a\u5236\uff0c\u5219\u5f88\u96be\u5b9e\u73b0\u5408\u7406\u8bbe\u8ba1\u9002\u5408\u957f\u5faa\u73af\u5bff\u547d\u7684LMBs<\/strong>\u3002<\/p>\n \u8fd1\u65e5\uff0c\u53a6\u95e8\u5927\u5b66\u6768\u52c7<\/strong>\u6559\u6388<\/strong>\uff08\u901a\u8baf\u4f5c\u8005\uff09<\/strong>\u9996\u5148\u642d\u5efa\u4e86\u539f\u4f4d\u6838\u78c1\u5171\u632f\uff08NMR\uff09\u88c5\u7f6e\uff0c\u4ece\u800c\u89c2\u5bdf\u5230\u4e86\u7535\u6c60\u957f\u5faa\u73af\u8fc7\u7a0b\u4e2d\u9502\u91d1\u5c5e\u7684\u52a8\u6001\u6c89\u79ef\/\u5265\u79bb\u8fc7\u7a0b\uff0c\u5e76\u901a\u8fc77<\/sup>Li NMR\u5b9a\u91cf\u5206\u6790\u4e86SEI\u548c\u6b7b\u9502\u7684\u5177\u4f53\u6570\u91cf\u3002\u7136\u540e\uff0c\u57fa\u4e8eTGC\u548c\u8d28\u8c31\u6ef4\u5b9a\u6cd5\uff08MST\uff09\u4e24\u79cd\u5206\u5f00\u7684\u5206\u6790\u6280\u672f\uff0c\u5b9a\u91cfNMR\u7684\u53ef\u884c\u6027\u548c\u53ef\u9760\u6027\u5f97\u5230\u5145\u5206\u9a8c\u8bc1\u3002\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u4e09\u79cd\u6280\u672f\u5728\u91cf\u5316\u6b7b\u9502\u65b9\u9762\u7684\u5dee\u5f02\u662f\u7531LiH\u5f15\u8d77\u7684\u3002\u66f4\u52a0\u91cd\u8981\u7684\u662f\uff0c\u901a\u8fc7\u66f4\u53ef\u9760\u7684\u91cf\u5316\u65b9\u6cd5\uff0c\u672c\u6587\u7814\u7a76\u4e86AFB\u5728\u51e0\u79cd\u5178\u578b\u6761\u4ef6\u4e0b\u7684\u5931\u6548\u673a\u5236\uff0c\u5305\u62ec\u7535\u6d41\u5bc6\u5ea6\u3001\u7535\u89e3\u6db2\u6dfb\u52a0\u5242\u548c\u76d0\u6d53\u5ea6\u3002\u5728\u8fd9\u4e9b\u5b9a\u91cf\u7ed3\u679c\u7684\u57fa\u7840\u4e0a\uff0c\u672c\u6587\u62a5\u544a\u4e86AFB\u7684\u4e24\u9636\u6bb5\u5931\u6548\u8fc7\u7a0b\uff0c\u5e76\u63d0\u51fa\u4e86\u672a\u6765\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u4ee5\u7f13\u89e3\u6b7b\u9502\u7684\u5f62\u6210\u3002\u76f8\u5173\u7814\u7a76\u6210\u679c\u4ee5\u201cQuantitatively analyzing the failure processes of<\/strong>\u00a0<\/strong>rechargeable Li metal batteries<\/strong>\u201d\u4e3a\u9898\u53d1\u8868\u5728Science Advances<\/i><\/em><\/strong>\u4e0a\u3002 \u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/b><\/strong><\/p>\n \u56fe<\/b><\/strong>\u4e00\u3001\u539f\u4f4dNMR\u793a\u610f\u56fe\u53ca\u76f8\u5e94\u6d4b\u8bd5<\/b><\/strong> \uff08A\uff09\u539f\u4f4dNMR\u793a\u610f\u56fe\uff1b<\/p>\n \uff08B\uff09Cu||LiFePO4<\/sub>\u7535\u6c60\u4e2d\u94dc\u57fa\u5e95\u4e0a\u9502\u91d1\u5c5e\u6c89\u79ef\/\u5265\u79bb\u793a\u610f\u56fe\uff1b<\/p>\n \uff08C-E\uff09Cu||LiFePO4<\/sub>\u7535\u6c60\u7b2c\u4e00\u5708\u7684\u5faa\u73af\u66f2\u7ebf\uff0c\u4ee5\u53ca\u76f8\u5e94\u76847<\/sup>Li NMR\u548c\u5728\u5145\u653e\u7535\u8fc7\u7a0b\u4e2d\u7684\u5f52\u4e00\u5316\u79ef\u5206\uff1b<\/p>\n \uff08F\uff09\u5728\u5f00\u8def\u7535\u538b\uff08OCV\uff09\u3001\u5b8c\u5168\u5145\u7535\u72b6\u6001\u548c\u5b8c\u5168\u653e\u7535\u72b6\u6001\u4e0b\uff0c\u7535\u6c60\u76847<\/sup>Li\u00a0NMR\u6d4b\u8bd5\u3002<\/p>\n \u56fe<\/b><\/strong>\u4e8c\u3001\u4ece\u521d\u59cb\u5faa\u73af\u5230\u5faa\u73af\u7ed3\u675f\u7684<\/b><\/strong>7<\/b><\/sup><\/strong>Li NMR\u6d4b\u8bd5<\/b><\/strong> \uff08A\uff090.5 mA\/cm2<\/sup>\u7535\u6d41\u5bc6\u5ea6\u4e0b\u7684\u7535\u538b\u66f2\u7ebf\uff1b<\/p>\n \uff08B\uff09\u68c0\u6d4b\u5230\u7684\u9502\u91d1\u5c5e\u4fe1\u53f7\u9762\u79ef\u968f\u5faa\u73af\u65f6\u95f4\u7684\u6f14\u53d8\uff1b<\/p>\n \uff08C\uff09\u6839\u636e\u6b7b\u9502\u7684\u4e0d\u540c\u751f\u957f\u901f\u5ea6\u5206\u6210\u7684\u4e24\u4e2a\u9636\u6bb5\uff1b<\/p>\n \uff08D-F\uff09OCV\u9636\u6bb5\u4ee5\u53ca\u7b2c3\u548c\u7b2c25\u6b21\u5faa\u73af\u540e\u7684\u4e24\u9636\u6bb5\u8fc7\u7a0b\u793a\u610f\u56fe\u3002<\/p>\n \u56fe<\/b><\/strong>\u4e09<\/b><\/strong>\u3001NMR\u65b9\u6cd5\u7684\u5b9a\u91cf\u53ef\u9760\u6027\u548cLiH\u7684\u5f71\u54cd<\/b><\/strong> \uff08A\uff09\u00a0\u901a\u8fc7NMR\u3001TGC\u3001MST\u548c\u6821\u6b63\u7684TGC\u6280\u672f\u5728\u6807\u51c6\u7535\u6c60\u4e2d\u91cf\u5316\u7684\u6b7b\u9502\u7684\u91cf\uff1b<\/p>\n \uff08B\uff09LiH\u7684\u91cf\u4e0e\u4e09\u79cd\u6280\u672f\u83b7\u5f97\u7684\u5b9a\u91cf\u7ed3\u679c\u5dee\u5f02\u4e4b\u95f4\u7684\u5173\u7cfb\u3002<\/p>\n \u56fe<\/b><\/strong>\u56db<\/b><\/strong>\u3001FEC\u6dfb\u52a0\u5242\u548c\u9ad8\u7535\u6d41\u5bc6\u5ea6\u5bf9\u6b7b\u9502\u548cSEI\u5f62\u6210\u7684\u5f71\u54cd<\/b><\/strong> \uff08A\uff0cB\uff09\u57fa\u4e8eFEC\u6dfb\u52a0\u5242\u548c\u9ad8\u7535\u6d41\u5bc6\u5ea6\uff081.0 mA cm-2<\/sup>\uff09\u6d4b\u8bd5\u7684\u539f\u4f4dNMR\u6570\u636e\uff1b<\/p>\n \uff08C\uff09\u7531LiFePO4||Cu\u7535\u6c60\uff08\u9ed1\u8272\uff09\u3001\u542bFEC\u7535\u6c60\uff08\u6a59\u8272\uff09\u548c\u9ad8\u7535\u6d41\u5bc6\u5ea6\u7535\u6c60\uff08\u7d2b\u8272\uff09\u4e2d\uff0cSEI\u5f62\u6210\uff08CSEI<\/sub>\uff09\u4e0e\u6b7b\u9502\uff08Cdead<\/sub>\uff09\u9020\u6210\u7684\u5f52\u4e00\u5316\u5bb9\u91cf\u635f\u5931\u7684\u5173\u7cfb\u3002<\/p>\n \u56fe<\/b><\/strong>\u4e94<\/b><\/strong>\u3001<\/b><\/strong>\u9502\u5f62\u8c8c<\/b><\/strong>\u4e0e\u6b7b\u9502\u7684\u5bb9\u91cf\u635f\u5931\u4e4b\u95f4\u7684\u76f8\u5173\u6027<\/b><\/strong> \uff08A\uff0cB\uff09\u6807\u51c6\u7535\u6c60\u548cHD\u7535\u6c60\u7684\u5faa\u73af\u5708\u6570\u4e0e\u57287<\/sup>Li\u00a0NMR\u6d4b\u8bd5\u4e4b\u95f4\u7684\u5173\u7cfb\uff1b<\/p>\n \uff08C\uff0cD\uff09\u4e0d\u540c\u9502\u91d1\u5c5e\u5f62\u8c8c\u76847<\/sup>Li\u5316\u5b66\u4f4d\u79fb\uff1a\u5e73\u9762\u9502\u91d1\u5c5e\u548c\u679d\u6676\u72b6\u9502\u91d1\u5c5e\uff1b<\/p>\n \uff08E\uff09\u5728\u5faa\u73af\u671f\u95f4\uff0c\u95f4\u6b7b\u9502\u9020\u6210\u7684\u5bb9\u91cf\u635f\u5931\u4e0e7<\/sup>Li\u5316\u5b66\u4f4d\u79fb\u7684\u5173\u7cfb\u3002<\/p>\n \u56fe<\/b><\/strong>\u516d<\/b><\/strong>\u3001\u5178\u578b<\/b><\/strong>\u7535\u6c60\u5931\u6548\u548c<\/b><\/strong>\u589e\u5f3a\u7b56\u7565<\/b><\/strong>\u793a\u610f\u56fe<\/b><\/strong> \uff08A\uff09\u5728\u5177\u6709\u5148\u8fdb\u7535\u89e3\u6db2\u7684Cu||LiFePO4<\/sub>\u7535\u6c60\u4e2d\uff0c\u9502\u91d1\u5c5e\u5f3a\u5ea6\u968f\u5faa\u73af\u65f6\u95f4\u53d8\u5316\uff1b<\/p>\n \uff08B-E\uff09\u6a21\u62df\u4e86\u4e09\u79cd\u5178\u578b\u5931\u6548\u673a\u5236\u76847<\/sup>Li NMR\u5f3a\u5ea6\u4e0e\u5faa\u73af\u65f6\u95f4\u7684\u5173\u7cfb\uff1aSEI\u5931\u6548\u673a\u5236\u3001\u6b7b\u9502\/SEI\u6df7\u5408\u5931\u6548\u673a\u5236\u3001\u6b7b\u9502\u5931\u6548\u673a\u7406\uff0c\u4ee5\u53ca\u5bf9\u5e94\u7684Cdead<\/sub>\u4e0eCSEI<\/sub>\u66f2\u7ebf\u5173\u7cfb\u3002<\/p>\n \u3010\u5c0f\u7ed3\u3011<\/b><\/strong><\/p>\n \u7efc\u4e0a\u6240\u8ff0\uff0c\u672c\u6587\u5229\u7528operando NMR\u5bf9AFB\u4e2d\u9502\u91d1\u5c5e\u7684\u6c89\u79ef\/\u5265\u79bb\u8fdb\u884c\u4e86\u5168\u9762\u3001\u5b9a\u91cf\u548c\u6df1\u5165\u7684\u7814\u7a76\u3002\u5bf9NMR\u3001TGC\u548cMST\u7684\u5b9a\u91cf\u7ed3\u679c\u8fdb\u884c\u4e86\u4e25\u683c\u7684\u6bd4\u8f83\uff0c\u8bc1\u660e\u4e86\u5b9a\u91cf\u7ed3\u679c\u7684\u504f\u5dee\u662f\u7531\u4e8eLiH\u7684\u5b58\u5728\u3002LiH\u7684\u9274\u5b9a\u8868\u660e\uff0c\u4ec5\u7528TGC\u65b9\u6cd5\u5728\u5b9a\u91cf\u7814\u7a76\u6b7b\u9502\u65b9\u9762\u805a\u6709\u5c40\u9650\u6027\u3002\u540c\u65f6\uff0c\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0cNMR\u5b9a\u91cf\u7684\u80fd\u529b\u4e0e\u76ae\u80a4\u6df1\u5ea6\u6548\u5e94\u6709\u5173\uff0c\u5f53\u6c89\u79ef\u9762\u79ef\u5bb9\u91cf\u8f83\u5927\uff08\u4f8b\u59824\u00a0mAh\u00a0cm–<\/sup>2<\/sup>\u621620\u00a0um\uff09\u65f6\uff0c\u5e94\u4ed4\u7ec6\u4f7f\u7528\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u975e\u539f\u4f4dMST\u662f\u4e00\u79cd\u66ff\u4ee3\u7684\u6280\u672f\u3002\u7136\u800c\uff0c\u53ef\u4ee5\u9884\u671f\u7684\u662f\uff0c\u5bf9\u4e8e\u4e00\u4e9b\u7535\u6c60\u7cfb\u7edf\uff0c\u5982\u63a9\u76d6\u4e86\u9502\u91d1\u5c5e\/\u7535\u89e3\u8d28\u754c\u9762\u7684\u56fa\u6001\u7535\u6c60\uff0c\u7834\u574f\u6027\u6ef4\u5b9a\u65b9\u6cd5\u53ef\u80fd\u96be\u4ee5\u7cbe\u786e\u4f7f\u7528\uff1b\u56e0\u6b64\uff0cNMR\u5e94\u8be5\u662f\u5faa\u73af\u8fc7\u7a0b\u4e2d\u91cf\u5316\u975e\u6d3b\u6027\u9502\u7684\u6709\u529b\u5de5\u5177\u3002\u603b\u7684\u6765\u8bf4\uff0c\u4e00\u7cfb\u5217\u7684\u7ec4\u5408\u65b9\u6cd5\u5bf9\u4e8e\u5145\u5206\u4e86\u89e3\u9502\u91d1\u5c5e\u7684\u590d\u6742\u5931\u6548\u6a21\u5f0f\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u3002\u8fd9\u4e9b\u7ec4\u5408\u6280\u672f\u5c06\u4f5c\u4e3a\u91cd\u65b0\u8bc4\u4f30\u7f13\u89e3LMBs\u4e2d\u6b7b\u9502\u5f62\u6210\u7684\u7b56\u7565\u7684\u6709\u7528\u5de5\u5177\uff0c\u5e76\u4e3a\u5b9e\u9645LMBs\u7684\u672a\u6765\u7814\u7a76\u548c\u5f00\u53d1\u8bbe\u8ba1\u5148\u8fdb\u7684\u7535\u89e3\u8d28\u6750\u6599\u63d0\u4f9b\u4e86\u6709\u7528\u89c1\u89e3\u3002\u6b64\u5916\uff0c\u8fd9\u4e9b\u6280\u672f\u53ef\u4ee5\u6269\u5c55\u5230\u5176\u4ed6\u9502\u91d1\u5c5e\u57fa\u7cfb\u7edf\uff0c\u5982\u9502\u786b\u3001\u56fa\u6001\u9502\u7535\u6c60\u4ee5\u53ca\u78b1\u6027\u91d1\u5c5e\u57fa\u7535\u6c60\u3002<\/p>\n<\/p>\n
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