{"id":222876,"date":"2021-06-08T06:20:59","date_gmt":"2021-06-07T22:20:59","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=222876"},"modified":"2021-06-08T09:25:08","modified_gmt":"2021-06-08T01:25:08","slug":"%e5%8c%97%e5%a4%a7-%e4%b8%ad%e7%a7%91%e9%99%a2-%e5%be%b7%e5%9b%bd%e4%ba%8e%e5%88%a9%e5%b8%8cnat-commun-%e5%ad%aa%e6%99%b6%e7%95%8c%e5%b9%b3%e9%9d%a2%e7%bc%ba%e9%99%b7%e5%b7%a5%e7%a8%8b%e4%bf%83","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=222876","title":{"rendered":"\u5317\u5927\/\u4e2d\u79d1\u9662\/\u5fb7\u56fd\u4e8e\u5229\u5e0cNat. Commun.: \u5b6a\u6676\u754c\u5e73\u9762\u7f3a\u9677\u5de5\u7a0b\u4fc3\u8fdb\u7535\u6c60\u5feb\u5145\u6027\u80fd\u63d0\u5347"},"content":{"rendered":"

\u524d\u8a00<\/b><\/strong><\/p>\n

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\u76ee\u524d\uff0c\u5c42\u72b6\u4e09\u5143\u6b63\u6781\u6750\u6599(LiNixCoyMnzO2, x + y + z = 1)\u3001\u78f7\u9178\u94c1\u9502(LiFePO4)\u548c\u5c16\u6676\u77f3\u578b\u9502\u9530\u6b63\u6781\u6750\u6599(LiMn2O4)\u662f\u9502\u7535\u6c60\u7528\u4e8e\u53ef\u5145\u7535\u50a8\u80fd\u7684\u4e3b\u6d41\u5546\u7528\u6b63\u6781\u6750\u6599\u3002\u5176\u4e2d\u5c16\u6676\u77f3LiMn2O4\u56e0\u5176\u6210\u672c\u4f4e\u3001\u65e0\u6bd2\u3001\u50a8\u91cf\u4e30\u5bcc\u3001\u5728\u8bb8\u591a\u65b9\u9762\u5177\u6709\u4e00\u5b9a\u7684\u7ade\u4e89\u529b\u7b49\u4f18\u70b9\uff0c\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5927\u89c4\u6a21\u50a8\u80fd\u548c\u7535\u52a8\u6c7d\u8f66\u3002\u7136\u800c\uff0c\u9530\u5728\u7535\u89e3\u6db2\u4e2d\u7684\u6eb6\u89e3\u3001Mn3+\u7684Jahn-Teller\u7578\u53d8\u4ee5\u53caLiMn2O4\u8f83\u5dee\u7684\u500d\u7387\u6027\u80fd\u9650\u5236\u4e86\u5176\u5728\u5de5\u4e1a\u4e0a\u7684\u5e7f\u6cdb\u5e94\u7528\u3002\u76ee\u524d\u5bf9LiMn2O4\u6539\u6027\u7684\u7814\u7a76\u4e3b\u8981\u901a\u8fc7\u63ba\u6742\u3001\u754c\u9762\u6539\u6027\u3001\u7eb3\u7c73\u52a0\u5de5\u7b49\u65b9\u6cd5\u6765\u63d0\u9ad8\u5bfc\u7535\u7387\uff0c\u4fdd\u62a4\u754c\u9762\uff0c\u4ece\u800c\u63d0\u9ad8\u6750\u6599\u7684\u500d\u7387\u6027\u80fd\u548c\u5faa\u73af\u7a33\u5b9a\u6027\u3002\u8003\u8651\u5230\u70b9\u6216\u9762\u7f3a\u9677\u4f5c\u4e3a\u6676\u683c\u4e0d\u8fde\u7eed\u7684\u5f15\u5165\u662f\u4f18\u5316LiMn2O4\u7ed3\u6784\u548c\u6027\u80fd\u7684\u53ef\u9760\u548c\u6709\u6548\u7684\u65b9\u6cd5\uff0c\u901a\u8fc7\u7f3a\u9677\u5de5\u7a0b\u8fdb\u4e00\u6b65\u4f18\u5316LiMn2O4\u7684\u7535\u5316\u5b66\u6027\u80fd\uff0c\u6df1\u5165\u4e86\u89e3\u6b63\u6781\u7f3a\u9677\u7684\u673a\u7406\uff0c\u6709\u5229\u4e8e\u8fdb\u4e00\u6b65\u63d0\u9ad8\u5168\u7535\u6c60\u7684\u6027\u80fd\u3002<\/p>\n

\u5317\u4eac\u5927\u5b66\u6df1\u5733\u7814\u7a76\u751f\u9662\u8096\u836b\u679c\u6559\u6388\uff0c\u6f58\u950b\u6559\u6388\uff0c\u5fb7\u56fd\u4e8e\u5229\u5e0c\u7814\u7a76\u4e2d\u5fc3Lei Jin\u4e2d\u56fd\u6563\u88c2\u4e2d\u5b50\u6e90Lunhua He<\/b><\/strong>\u901a\u8fc7\u8c03\u6574\u5408\u6210\u6761\u4ef6\uff0c\u6709\u610f\u5730\u5728\u5c16\u6676\u77f3\u6b63\u6781\u4e2d\u5f15\u5165\u5927\u91cf\u7684\u5b6a\u6676\u754c\u7f3a\u9677\u3002\u901a\u8fc7\u9ad8\u5206\u8fa8\u626b\u63cf\u900f\u5c04\u7535\u955c\u548c\u4e2d\u5b50\u884d\u5c04\uff0c\u9610\u660e\u4e86\u5b6a\u6676\u754c\u7f3a\u9677\u7684\u8be6\u7ec6\u7ed3\u6784\uff0c\u5b6a\u6676\u754c\u7f3a\u9677\u7684\u5f62\u6210\u662f\u7531\u4e8e\u805a\u96c6\u7684\u9502\u539f\u5b50\u5360\u636e\u4e86\u5b6a\u6676\u754c\u5468\u56f4\u7684Mn\u4f4d\u3002\u57fa\u4e8e\u5b9e\u9a8c\u7ed3\u679c\uff0c\u7814\u7a76\u4eba\u5458\u8fdb\u884c\u4e86\u6a21\u62df\u8ba1\u7b97\uff0c\u8be6\u7ec6\u9610\u8ff0\u4e86\u5c16\u6676\u77f3\u9530\u9178\u9502\u6c27\u5316\u7269\u6750\u6599\u4e2d\u7684\u7f3a\u9677\u7ed3\u6784-\u6027\u80fd\u5173\u7cfb\uff0c\u53d1\u73b0\u5feb\u5145\u7535\u673a\u5236\u4e0e\u5b6a\u6676\u754c\u9644\u8fd1\u7684\u539f\u5b50\u6392\u5217\u6709\u5173\u3002\u5b9e\u9a8c\u7ed3\u679c\u663e\u793a\uff0c\u5177\u6709\u5b6a\u6676\u754c\u7f3a\u9677\u7684\u5c16\u6676\u77f3\u9530\u9178\u9502\u6c27\u5316\u7269\u6750\u6599\u5b9e\u73b0\u4e86\u4f18\u5f02\u7684\u5feb\u5145\u6027\u80fd\uff0c\u5373\u57285 C\u548c10 C\u4e0b\u5206\u522b\u4fdd\u6301\u4e8675%\u548c58%\u7684\u5bb9\u91cf\u4fdd\u6301\u7387\u3002<\/p>\n

\u56fe\u6587\u5bfc\u8bfb<\/b><\/strong><\/p>\n

\u56fe1 \u5408\u6210\u7684LMO-TB\u7684\u793a\u610f\u56fe\u548c\u7ed3\u6784\u8868\u5f81\u3002<\/p>\n

\"\"<\/p>\n

a. LMO-TB\u5feb\u901f\u9502\u79bb\u5b50\u8fc1\u79fb\u901a\u9053\u793a\u610f\u56fe<\/p>\n

b. XRD<\/p>\n

c. \u4e2d\u5b50\u7c89\u672b\u884d\u5c04\u7ec6\u5316\u56fe\u6848<\/p>\n

\u56fe2 LMO\u548cLMO- TB\u7684\u7ed3\u6784\u7279\u5f81<\/p>\n

\"\"<\/p>\n

a, d. SEM<\/p>\n

b, e.HAADF-STEM<\/p>\n

c, f. \u539f\u5b50\u5206\u8fa8\u7684HAADF-STEM<\/p>\n

\u56fe3 LMO-TB\u6b63\u6781\u7684\u5b6a\u6676\u754c<\/p>\n

\"\"<\/p>\n

a,b. \u5bf9\u79f0\u5b6a\u6676\u754c\u539f\u5b50\u5206\u8fa8\u7684HAADF-STEM\u4ee5\u53ca\u7ed3\u6784\u793a\u610f\u56fe<\/p>\n

e,f. \u975e\u5bf9\u79f0\u5b6a\u6676\u754c\u539f\u5b50\u5206\u8fa8\u7684HAADF-STEM\u4ee5\u53ca\u7ed3\u6784\u793a\u610f\u56fe<\/p>\n

\u56fe4\u7528LMO\u548cLMO-TB\u6b63\u6781\u5236\u5907\u7535\u6c60\u7684\u7535\u5316\u5b66\u6027\u80fd\u3002<\/p>\n

\"\"<\/p>\n

a,b. \u5145\u653e\u7535\u66f2\u7ebf<\/p>\n

c. \u500d\u7387<\/p>\n

d. \u7a33\u5b9a\u6027\u6d4b\u8bd5<\/p>\n

e. \u6027\u80fd\u6bd4\u8f83<\/p>\n

\u56fe5 LMO\u548cLMO- TB\u6b63\u6781\u7684\u9502\u79bb\u5b50\u6269\u6563\u901f\u7387\u3002<\/p>\n

\"\"<\/p>\n

a,b.c, d,e: CV\u66f2\u7ebf\u4ee5\u53ca\u7535\u6d41\u4e0e\u626b\u901f\u5173\u7cfb<\/p>\n

f. \u4e0d\u540c\u5faa\u73af\u6570\u4e0b\u7684\u9502\u79bb\u5b50\u6269\u6563\u7cfb\u6570<\/p>\n

\u56fe6 LMO-TB\u9502\u79bb\u5b50\u5feb\u901f\u6269\u6563\u673a\u7406<\/p>\n

\"\"<\/p>\n

a \u2013 c. a\u5757\u4f53\u7ed3\u6784\u548cb\u4e0d\u5bf9\u79f0\u5b6a\u6676\u754c\u548cc\u5e26\u6709\u989d\u5916Li\u7684\u4e0d\u5bf9\u79f0\u53cc\u6676\u754c\u9502\u79bb\u5b50\u6269\u6563\u793a\u610f\u56fe<\/p>\n

d. a – c\u4e09\u79cd\u6761\u4ef6\u4e0b\u9502\u79bb\u5b50\u6269\u6563\u7684\u80fd\u5792<\/p>\n

e. LMO\u548cLMO- TB\u7684\u9502\u79bb\u5b50\u6269\u6563\u901f\u7387<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1aWang, R., Chen, X., Huang, Z. et al. Twin boundary defect engineering improves lithium-ion diffusion for fast-charging spinel cathode materials. Nat Commun. 2021, 12, 3085. DOI\uff1a10.1038\/s41467-021-23375-7<\/u><\/a><\/p>\n

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