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\u4e00\u3001<\/strong>\u00a0<\/strong>\u3010\u5bfc\u8bfb\u3011 \u00a0<\/strong><\/p>\n

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\u00a0<\/strong><\/p>\n

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\u76f8\u5173\u7814\u7a76\u6210\u679c\u4ee5\u201cMechanochemically Robust LiCoO2<\/sub>\u00a0with Ultrahigh Capacity and Prolonged Cyclability\u201d\u4e3a\u9898\u53d1\u8868\u5728Advanced\u00a0Materials.<\/p>\n

\u00a0<\/strong><\/p>\n

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 <\/p>\n

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\u56fe2 a) 0.1C\u4e0bLCO\u548cGDLCO\u57283-4.65V\u7684\u521d\u59cb\u4e24\u4e2a\u5faa\u73af\u7684\u5145\u7535\/\u653e\u7535\u66f2\u7ebf\u3002b) 5C\u4e0bLCO\u548cGDLCO \u7535\u6c60\u57283-4.65\u7684\u5bb9\u91cf\u548c\u5e73\u5747\u7535\u538b\u7a33\u5b9a\u6027\u3002c) 10C\u4e0bLCO\u548cGDLCO\u534a\u7535\u6c60\u57283-4.6V\u7684\u5bb9\u91cf\u548c\u5e73\u5747\u7535\u538b\u7a33\u5b9a\u6027\u3002d) 0.75C\u4e0b3-4.6V\uff08\u76f8\u5f53\u4e8e4.65V vs. Li\/Li+<\/sup>\uff09\u8303\u56f4\u5185Ah\u91cf\u7ea7\u8f6f\u5305\u5168\u7535\u6c60\u7684\u5faa\u73af\u7a33\u5b9a\u6027\u3002\u63d2\u56fe\u4e3a\u65e0\u4eba\u673a\u4e0a\u7684\u5355\u4e2a\u8f6f\u5305\u7535\u6c60\u548c\u8f6f\u5305\u7535\u6c60\u7ec4\u3002e) 0.15\u81f37.5C\u4e0b\u8f6f\u5305\u7535\u6c60\u7684\u500d\u7387\u6027\u80fd\u3002<\/p>\n

 <\/p>\n

GDLCO \u548c LCO\u5728\u7ebd\u6263\u534a\u7535\u6c60\u548c\u8f6f\u5305\u5168\u7535\u6c60\u4e2d\u5206\u522b\u8fdb\u884c\u7684\u7535\u5316\u5b66\u6027\u80fd\u6d4b\u8bd5\u3002\u56fe 2a \u663e\u793a\u5728 3-4.65 V \u4e0b 0.1 C\uff081C= 200 mA g-1<\/sup>\uff09\u4e0b GDLCO \u548c LCO \u7684\u521d\u59cb\u653e\u7535\u5bb9\u91cf\u5206\u522b\u4e3a 256 \u548c 251 mAh g-1<\/sup>\uff0c\u7ea6\u4e3a\u7406\u8bba\u5bb9\u91cf\u7684 93%\u3002dQ<\/em>\/dV<\/em>\u00a0\u66f2\u7ebf\u53d1\u73b0\u5728\u6700\u521d\u4e24\u4e2a\u5faa\u73af\u4e2d\uff0c\u7ea6 30 mAh g-1<\/sup>\u00a0\u7684\u989d\u5916\u5bb9\u91cf\u6765\u81ea 4.62 V \u7684\u5145\u7535\u5e73\u53f0\uff0c\u4e3aH1-3\u5230O1\u7684\u76f8\u8f6c\u53d8\u3002\u5927\u591a\u6570\u62a5\u9053\u7684\u6b63\u6781\u5373\u4f7f\u5728\u66f4\u9ad8\u7684\u5de5\u4f5c\u7535\u538b\u4e0b\u5145\u7535\uff0c\u4e5f\u4e0d\u4f1a\u51fa\u73b0\u8fd9\u79cd\u5bb9\u91cf\u5e73\u53f0\uff0c\u8fd9\u4e3b\u8981\u662f\u7531\u4e8e\u5b83\u4eec\u52a8\u529b\u5b66\u7f13\u6162\u3002\u957f\u5faa\u73af\u6d4b\u8bd5\u53d1\u73b0 GDLCO\u5728 5 C \u4e0b\u7ecf\u8fc7 500 \u6b21\u5faa\u73af\u540e\u5bb9\u91cf\u4fdd\u6301\u7387\u9ad8\u8fbe 82%\uff0c\u5e73\u5747\u7535\u538b\u8870\u51cf\u4ec5\u4e3a 0.048 V\uff080.096 mV\/\u5faa\u73af\uff09\uff08\u56fe 2b\uff09\u3002\u800cLCO \u7684\u5bb9\u91cf\u4fdd\u6301\u7387\u4ec5\u4e3a 42%\uff0c\u5e73\u5747\u7535\u538b\u8870\u51cf\u4e3a 0.557 V\uff081.114 mV\/\u5faa\u73af\uff09\u3002\u6b64\u5916\uff0c\u5f53\u4e0a\u9650\u622a\u6b62\u7535\u538b\u8c03\u6574\u4e3a4.6 V\uff0cGDLCO \u7684\u5faa\u73af\u7a33\u5b9a\u6027\u5f97\u5230\u8fdb\u4e00\u6b65\u589e\u5f3a\u3002\u572810 C\u4e0b\u7ecf\u8fc7 1500 \u6b21\u5faa\u73af\u540e\uff0c\u5bb9\u91cf\u4fdd\u6301\u7387\u4e3a82%\uff0c\u5e73\u5747\u7535\u538b\u8870\u51cf\u6700\u5c0f\uff0c\u4e3a 0.136 V\uff080.091 mV\/\u5faa\u73af\uff09\uff08\u56fe 2c\uff09\u3002\u76f8\u6bd4\u4e4b\u4e0b\uff0cLCO \u7684\u653e\u7535\u5bb9\u91cf\u8fc5\u901f\u4e0b\u964d\u81f3\u63a5\u8fd1\u96f6\uff0c\u572810 C\u7535\u6d41\u5bc6\u5ea6\u4e0b\u4ec5\u7ecf\u8fc7 300 \u6b21\u5faa\u73af\u540e\uff0c\u7535\u538b\u8870\u51cf\u5c31\u9ad8\u8fbe 0.804 V\uff082.68 mV\/\u5faa\u73af\uff09\u3002<\/p>\n

\u8fdb\u4e00\u6b65\u6d4b\u8bd5\u4e86\u8f6f\u5305\u5168\u7535\u6c60\u4e2dGDLCO \u7684\u5faa\u73af\u7a33\u5b9a\u6027\u3002\u5728 0.75 C \u4e0b\u4ee5 3-4.6 V\uff08\u76f8\u5f53\u4e8e\u534a\u7535\u6c60\u4e2d\u76844.65 V vs. Li\/Li+<\/sup>\uff09\u5faa\u73af\u65f6\uff0c\u7535\u6c60\u7684\u521d\u59cb\u5bb9\u91cf\u4e3a 841 mAh\uff0c300\u6b21\u5faa\u73af\u540e\u5bb9\u91cf\u4fdd\u6301\u7387\u4e3a 81%\uff08\u56fe 2d\uff09\u3002\u4e3a\u4e86\u9a8c\u8bc1\u8f6f\u5305\u5168\u7535\u6c60\u7684\u5b9e\u7528\u6027\uff0c\u4f5c\u8005\u5c066\u4e2a\u8f6f\u5305\u7535\u6c60\u4e32\u8054\u6210\u4e00\u4e2a\u7ec4\uff08\u6bcf\u4e2a\u8f6f\u5305\u7535\u6c60\u7ea62 Ah\uff09\u4e3a\u9700\u8981\u9ad8\u529f\u7387\u5bc6\u5ea6\u7684\u9ad8\u901f\u65e0\u4eba\u673a\u4f9b\u7535\uff08\u56fe2d\u63d2\u56fe\uff09\u3002\u8f6f\u5305\u5168\u7535\u6c60\u5728 0.15 C \u65f6\u653e\u7535\u5bb9\u91cf\u4e3a 250 mAh g-1<\/sup>\uff0c\u5728 7.5 C \u65f6\u4fdd\u6301195 mAh g-1<\/sup>\uff08\u56fe 2e\uff09\u3002\u8fd9\u8868\u660e\u575a\u56fa\u7684\u7ed3\u6784\u6846\u67b6\u53ef\u4ee5\u7ef4\u6301\u5feb\u901f\u7684Li+ <\/sup>\u8131\u5d4c\u884c\u4e3a\uff0c\u6709\u5229\u4e8e\u5b9e\u73b0\u5feb\u901f\u5145\u7535\u80fd\u529b\u3002\u7535\u5316\u5b66\u6d4b\u8bd5\u8bc1\u660e\uff0c\u68af\u5ea6\u65e0\u5e8f\u7ed3\u6784\u8bbe\u8ba1\u7684GDLCO\u65e0\u8bba\u662f\u9ad8\u5de5\u4f5c\u7535\u538b\u4e0b\u7684\u957f\u5faa\u73af\u7a33\u5b9a\u6027\u8fd8\u662f\u5feb\u901f\u5145\u7535\u7535\u6027\u80fd\u65b9\u9762\u90fd\u4f18\u4e8e\u4e4b\u524d\u62a5\u9053\u7684 LCO \u6b63\u6781\u3002<\/p>\n

\"\"<\/strong><\/p>\n

\u56fe3 TXM\u89c2\u5bdfOCV\uff0c\u4ee5\u53ca\u5145\u7535\u81f34.6V\u548c4.65V\u540eGDLCO\u6837\u54c1\u7684Co\u4ef7\u6001\u5206\u5e03\u76843D\u6e32\u67d3\uff08a-c\uff09\u548c2D\u5207\u7247\u56fe\uff08e-g\uff09\u3002d,h) \u5145\u7535\u81f34.65V\u7684LCO\u7684Co\u4ef7\u6001\u5206\u5e03\u76843D\u6e32\u67d3\uff08d\uff09\u548c2D\u5207\u7247\u56fe\uff08h\uff09\u3002i) LCO\u548cGDLCO\u76f8\u5e94\u7684Co\u4ef7\u6001\u5206\u5e03\u66f2\u7ebf\u3002j) \u5145\u7535\u81f34.65 V\u7684LCO\u548cGDLCO\u7684Co\u4ef7\u6001\u5206\u5e03\u7684\u6807\u51c6\u504f\u5dee\u503c\u6bd4\u8f83\u3002k\uff0cl) GDLCO\u5728OCV\u3001\u5145\u7535\u81f34.65V\u3001\u653e\u7535\u81f33V\u4ee5\u53ca\u7ecf\u8fc7200\u6b21\u5faa\u73af\u540e\u7684Co K<\/i><\/em>\u8fb9XANES\uff08k\uff09\u548cEXAFS\uff08l\uff09\u5149\u8c31\u3002<\/p>\n

 <\/p>\n

\u4e3a\u4e86\u66f4\u52a0\u5168\u9762\u4e86\u89e3\u68af\u5ea6\u65e0\u5e8f\u7ed3\u6784\u8bbe\u8ba1\u5bf9\u7535\u5316\u5b66\u6027\u80fd\u7684\u79ef\u6781\u5f71\u54cd\uff0c\u8be5\u5de5\u4f5c\u5229\u7528\u5168\u573a\u900f\u5c04X\u5c04\u7ebf\u663e\u5fae\u955c\uff08TXM\uff09\u7ed3\u54083D X\u5c04\u7ebf\u5438\u6536\u8fd1\u8fb9\u5149\u8c31\uff08XANES\uff09\u7814\u7a76\u4e86\u4e0d\u540c\u7535\u8377\u72b6\u6001\u4e0b\u7535\u6781\u7684\u5316\u5b66\u884c\u4e3a\u3002\u56fe3a-c\u5206\u522b\u663e\u793a\u4e86GDLCO\u5728\u5f00\u8def\u7535\u538b\uff08OCV\uff09\uff0c\u5145\u7535\u81f34.6 V\u548c4.65 V\u72b6\u6001\u4e0bCo\u4ef7\u6001\u76843D\u5206\u5e03\u3002\u989c\u8272\u4ece\u84dd\u8272\u53d8\u4e3a\u7eff\u8272\u540e\u53d8\u4e3a\u9ec4\u8272\u548c\u7ea2\u8272\uff0c\u5bf9\u5e94Co\u9633\u79bb\u5b50\u7684\u9010\u6e10\u6c27\u5316\u8fc7\u7a0b\u3002\u89c2\u5bdf\u5230\u4eceOCV\u52304.6 V\uff0cCo\u7684\u6c27\u5316\u4ef7\u6001\u660e\u663e\u589e\u52a0\uff0c\u4f46 4.6 V\u548c 4.65 V \u4e4b\u95f4\u7684\u5dee\u5f02\u8f83\u5c0f\u30022D \u5207\u7247\u548c\u6a2a\u622a\u9762\u89c6\u56fe\u8fdb\u4e00\u6b65\u8bc1\u5b9e\u4e86\u7c7b\u4f3c\u7684\u89c2\u5bdf\u7ed3\u679c\uff08\u56fe 3e-g\uff09\u3002\u4e3a\u4e86\u6bd4\u8f83\uff0c\u56fe 3d \u548c 3h \u7ed9\u51fa\u4e86\u539f\u59cbLCO\u5145\u7535\u81f3 4.65 V \u76f8\u5e94\u76843D \u6e32\u67d3\u548c 2D \u5207\u7247\u89c6\u56fe\u3002\u5728\u56fe 3i \u4e2d\uff0c\u4f5c\u8005\u7edf\u8ba1\u4e86 3D XANES \u4e2d\u7684\u6240\u6709\u4e09\u7ef4\u50cf\u7d20\uff0c\u4ece\u800c\u91cf\u5316\u6bd4\u8f83\u4e86 Co\u7684\u4ef7\u6001\u53d8\u5316\u3002\u5bf9\u4e8e GDLCO\uff0cCo \u5e73\u5747\u4ef7\u6001\u4ece 4.6 V\u7684+3.67\u589e\u52a0\u5230 4.65 V\u7684+3.72\uff0c\u589e\u52a0\u4e86 0.05\uff0c\u5bf9\u5e94\u7684\u5bb9\u91cf\u4ec5\u4e3a 13.7 mA h g-1<\/sup>\u3002\u4e3a\u4e86\u91cf\u5316\u5316\u5b66\u72b6\u6001\u5206\u5e03\u7684\u4e0d\u5747\u5300\u6027\uff0c\u4f5c\u8005\u5f15\u5165\u6807\u51c6\u5dee\u53c2\u6570\u3002\u5728 GDLCO \u4e2d\u89c2\u5bdf\u5230\u8f83\u4f4e\u6807\u51c6\u5dee\u503c\uff0c\u8868\u660e\u66f4\u597d\u7684\u5316\u5b66\u53cd\u5e94\u5747\u5300\u6027\uff08\u56fe 3j\uff09\u3002\u4f7f\u7528 X \u5c04\u7ebf\u5438\u6536\u5149\u8c31\u8fdb\u4e00\u6b65\u7814\u7a76\u53d1\u73b0Co \u7684XANES\u66f2\u7ebf\u5728\u4eceOCV\u5145\u7535\u81f3 4.65 V \u65f6\u660e\u663e\u663e\u793a\u767d\u7ebf\u7684\u6b63\u5411\u79fb\u52a8\uff0c\u800c\u5728 200 \u6b21\u5faa\u73af\u540e\uff0c\u66f2\u7ebf\u4f4d\u7f6e\u6216\u5f62\u72b6\u6ca1\u6709\u660e\u663e\u53d8\u5316\uff08\u56fe 3k\uff09\u3002\u76f8\u5e94\u5730\uff0c\u5085\u91cc\u53f6\u53d8\u6362\u6269\u5c55 X \u5c04\u7ebf\u5438\u6536\u7cbe\u7ec6\u7ed3\u6784 (EXAFS) \u663e\u793a\u957f\u5faa\u73af\u540e Co-O \u548c Co-Co \u914d\u4f4d\u8ddd\u79bb\u7684\u53d8\u5316\u8f83\u5c0f\uff0c\u8868\u660eGDLCO \u5177\u6709\u7a33\u5b9a\u7684\u5c40\u90e8\u914d\u4f4d\u73af\u5883\uff08\u56fe 3l\uff09\u3002<\/p>\n

\u00a0\"\"<\/b><\/strong><\/p>\n

\u56fe4 a,b) LCO\u548cGDLCO\u5728\u6700\u521d\u4e24\u4e2a\u5faa\u73af\u4e2d\u7684\u539f\u4f4dXRD\u56fe\u3002c,e) XRF\u56fe\u8868\u5f81\u7684LCO\uff08c\uff09\u548cGDLCO\uff08e\uff09\u7684\u5f62\u8c8c\u3002d,f) LCO\uff08d\uff09\u548cGDLCO\uff08f\uff09\u5145\u7535\u81f34.65 V\u65f6\u7a7a\u95f4\u53ef\u89c6\u5316\u7684\u4e09\u79cd\u4e0d\u540c\u6676\u683c\u7578\u53d8\uff1a\uff08101\uff09\u9762\u6676\u683c\u81a8\u80c0\/\u6536\u7f29\u25b3d\/d\uff0c\u6cbfy\u8f74\u548cz\u8f74\u5f2f\u66f2\u3002g-i)\uff08101\uff09\u9762\u25b3d\/d\uff08g\uff09\uff0c\u6cbfy\u8f74\uff08h\uff09\u548cz\u8f74\uff08i\uff09\u5f2f\u66f2\u7684\u6807\u51c6\u5dee\u503c\u6bd4\u8f83\u3002<\/p>\n

 <\/p>\n

\u5faa\u73af\u8fc7\u7a0b\u4e2d\u53ef\u9006\u7684\u7ed3\u6784\u6f14\u53d8\u5bf9\u4e8e\u786e\u4fdd\u6750\u6599\u957f\u5faa\u73af\u7a33\u5b9a\u6027\u8d77\u7740\u5173\u952e\u4f5c\u7528\u3002\u5982\u56fe4a,b\u6240\u793a\uff0c\u901a\u8fc7\u539f\u4f4d\u9ad8\u80fd XRD \u6d4b\u8bd5\u53d1\u73b0LCO \u548c GDLCO\u5728\u5145\u653e\u7535\u8fc7\u7a0b\u4e2d\u90fd\u8868\u73b0\u51fa\u660e\u663e\u7684\u7ed3\u6784\u6f14\u53d8\uff0c\u76f8\u5e94\u7684\u884d\u5c04\u5cf0\u5728\u8131\u5d4c\u9502\u8fc7\u7a0b\u4e2d\u53d1\u751f\u504f\u79fb\u3002GDLCO \u5728\u7b2c2\u6b21\u5faa\u73af\u4e2d\u4ecd\u7136\u5177\u6709\u548c\u9996\u5708\u5faa\u73af\u4e00\u81f4\u7684\u9ad8\u5ea6\u53ef\u9006\u7684\u7ed3\u6784\u76f8\u53d8\u3002\u76f8\u6bd4\u4e4b\u4e0b\uff0cLCO \u5728\u9996\u5708\u5faa\u73af\u8fc7\u7a0b\u4e2d\u51fa\u73b0\u7ed3\u6784\u8870\u51cf\uff0c\u8fd9\u963b\u788d\u4e86\u540e\u7eed\u5faa\u73af\u4e2d\u9ad8\u7535\u538b\u4e0b\u7684\u8131\u9502\u8fc7\u7a0b\u3002\u7531\u6b64\u53ef\u4ee5\u63a8\u65ad\uff0c\u68af\u5ea6\u65e0\u5e8f\u7ed3\u6784\u8868\u73b0\u51fa\u7a33\u5b9a\u7684\u6676\u683c\u6846\u67b6\uff0c\u6709\u5229\u4e8e Li+<\/sup>\u00a0\u7684\u6301\u7eed\u6269\u6563\u3002<\/p>\n

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\"\"<\/strong><\/p>\n

\u56fe5 a-h) LCO\u548cGDLCO\u6837\u54c1\u5728\u9996\u5708\u5145\u7535\u81f3 4.65 V\uff08a\u3001e\uff09\u653e\u7535\u81f3 3 V\uff08b\u3001f\uff09\u548c 200 \u6b21\u5faa\u73af\u540e\uff08c\u3001d\u3001g\u3001h\uff09\u7684 TEM \u56fe\u50cf\u3002\u63d2\u56fe\u4e3a\u76f8\u5e94\u7684FFT\u56fe\u3002(c) \u4e2d\u63d2\u56fe\u663e\u793a\u4e86\u88c2\u7eb9\u7684\u653e\u5927\u533a\u57df\u3002i) cRED\u6280\u672f\u793a\u610f\u56fe\u3002j-o) LCO\u548cGDLCO\u9897\u7c92\u5728\u9996\u5708\u5145\u7535\u81f34.65V\uff08j\u3001m\uff09\u3001\u653e\u7535\u81f33 V\uff08k\u3001n\uff09\u548c200\u6b21\u5faa\u73af\u540e\uff08l\u3001o\uff09\u6cbf[210]\u65b9\u5411\u89c2\u5bdf\u5230\u7684\u5012\u6613\u70b9\u9635\u56fe\u6848\u3002<\/p>\n

 <\/p>\n

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\u00a0<\/strong><\/p>\n

\u56db\u3001\u3010\u6210\u679c\u603b\u7ed3\u3011<\/strong><\/p>\n

 <\/p>\n

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 <\/p>\n

 <\/p>\n

\u539f\u6587\u94fe\u63a5<\/strong>\uff1a\u00a0Huang, W.; Li, J.; Zhao, Q.; Li, S.; Ge, M.; Fang, J.; Chen, Z.; Yu, L.; Huang, X.; Zhao, W.; Huang, X.; Ren, G.; Zhang, N.; He, L.; Wen, J.; Yang, W.; Zhang, M.; Liu, T.; Amine, K.; Pan, F.\u00a0Mechanochemically Robust LiCoO2<\/sub>\u00a0with Ultrahigh Capacity and Prolonged Cyclability.Advanced Materials (2024). \u00a0<\/p>\n

https:\/\/doi.org\/10.1002\/adma.202405519<\/a>.<\/p>\n

 <\/p>\n

\u4e94\u3001\u3010\u4f5c\u8005\u4ecb\u7ecd\u3011<\/strong><\/p>\n

 <\/p>\n

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