鍘﹂棬澶у鐜嬮福鐢熸暀鎺堝洟闃熴夾CS AMI銆嬶細(xì)鏋勫緩寮哄仴鐨勪氦鑱旂矘緇撳墏緗戠粶鎻愬崌紜呰礋鏋佺殑鍌ㄩ攤鎬ц兘
2021-11-15 鏉ユ簮:涓浗鑱氬悎鐗╃綉 鐐瑰嚮嬈?/span>
鍏抽敭璇嶏細(xì)鍌ㄩ攤鎬ц兘 紜呰礋鏋?/a>
紜呰礋鏋佺敱浜庡叾瓚呴珮鐨勭悊璁哄閲忋佽緝浣庣殑鐢?shù)鍖栧鍙嶅簲鐢?shù)浣嶅拰涓板瘜鐨勮嚜鐒惰祫婧愯岃騫挎硾璁や負(fù)鏄笅涓浠ｉ珮鑳介噺瀵嗗害閿傜瀛愮數(shù)姹犳瀬鍏峰簲鐢ㄥ墠鏅殑璐熸瀬鏉愭枡涔嬩竴銆傜劧鑰岋紝紜呴綺掑湪鍙嶅鍦板祵閿?鑴遍攤榪囩▼涓細(xì)鍙戠敓宸ㄥぇ鐨勪綋縐彉鍖栵紝瀵艱嚧媧繪х棰楃矑鍑虹幇寮瑁傜敋鑷崇矇鍖栵紝閫犳垚鐢?shù)瑙ｆ恫鐨勪笉鏂秷鑰楀拰SEI鑶滅殑鍙嶅鐢熼暱錛屼嬌寰楃數(shù)鏋佽〃鐜板嚭杈冨樊鐨勫驚鐜鍛姐傜爺絀惰〃鏄庯紝閫氳繃瀵圭鏉愭枡榪涜綰崇背鍖栥佸悎閲戝寲銆佸瀛斿寲澶勭悊浠ュ強(qiáng)涓庣⒊鍩烘潗鏂欑殑澶嶅悎絳夌瓥鐣ュ彲浠ユ湁鏁堝湴瑙ｅ喅涓婅堪闂錛屼絾鏄鏉傜殑宸ヨ壓鍜岃繃楂樼殑鎴愭湰錛屼緷鐒墮檺鍒朵簡(jiǎn)鍏跺疄闄呭簲鐢ㄣ?
鎴愭灉綆浠?/strong>
鏃ュ墠錛屽帵闂ㄥぇ瀛︾帇楦ｇ敓鏁欐巿鍥㈤槦鐩存帴浠庣矘緇撳墏鏀硅繘鐨勭瓥鐣ュ嚭鍙戯紝閫氳繃浣跨敤妞嶉吀(PA)浣滀負(fù)浜よ仈鍓傦紝緇撳悎浼犵粺鐨?/span>CMC綺樼粨鍓傦紝鏋?/span>寤轟簡(jiǎn)寮哄仴鐨?/span>CMC/PA浜よ仈綺樼粨鍓傜綉緇?/span>鐢ㄤ簬綰鐢墊瀬錛屽鍥?/span>1a, b鎵紺恒傚湪璇?/span>璁捐涓紝CMC鏄竴縐嶅父瑙勭殑姘存憾鎬х矘緇撳墏錛屽惈鏈夊ぇ閲忕殑緹у熀浣嶇偣鍜岀緹鍩哄畼鑳藉洟銆?/span>PA閫氬父鏉ユ簮浜庢鐗╃瀛愶紝鐢變簬鍚湁涓板瘜鐨勭緹鍩哄畼鑳藉洟錛屽彲涓?/span>CMC綺樼粨鍓?/span>鐨勭晶鍩轟綅鐐瑰拰緹熷熀瀹樿兘鍥㈠艦鎴愰叝閿拰姘㈤敭錛屽張鑳藉鍜?/span>Si棰楃矑琛ㄩ潰緹熷熀褰㈡垚姘㈤敭銆傝屼笖錛屼笉鍚屼簬綰挎?/span>CMC綺樼粨鍓傦紝榪欑鏋濇帴鐨?/span>CMC/PA綺樼粨鍓傜敱浜庡拰紜呴綺掓湁鏇村鐨勬帴瑙︿綅鐐癸紝鍙互褰㈡垚鏇村己鐨勬阿閿傚師浣嶇數(shù)闀滃強(qiáng)闈炲師浣嶈氨瀛︾瓑琛ㄥ緛鎵嬫鍏呭垎鎻ず浜?jiǎn)锛?xì)涓庡崟綰殑CMC綺樼粨鍓?/span>鐩告瘮錛?/span>CMC/PA浜よ仈綺樼粨鍓傜綉緇滃叿鏈夋洿寮虹殑綺橀檮鎬ц兘鍜屾洿楂樼殑鍔涘寮哄害銆傚洜姝わ紝浣跨敤榪欑鏀規(guī)х殑CMC/PA綺樼粨鍓傜殑紜呯數(shù)鏋侊紝鍦ㄥ弽澶嶇數(shù)鍖栧寰幆榪囩▼涓彲浠ユ湁鏁堝湴閫傚簲媧繪х鐨勪綋縐彉鍖?/span>錛屼繚鎸佷簡(jiǎn)鐢墊瀬鏁翠綋鐨勫畬鏁存у拰SEI鑶滅殑紼沖畾鎬э紝鏈緇堣〃鐜板嚭杈冧紭寮傜殑鐢?shù)鍖栧鎬ц兘銆?/span>
鍥炬枃瀵艱
鍥?/span>1. (a) CMC涓?/span>PA緙╁悎褰㈡垚浜よ仈CMC/PA綺樼粨鍓?/span>鐨?/span>紺烘剰鍥俱?/span>(b) Si棰楃矑涓?/span>CMC/PA綺樼粨鍓備箣闂寸殑鍖栧閿悎銆?/span>(c) Si-CMC鍜?/span>Si-CMC/PA鐢墊瀬鍦ㄥ驚鐜繃紼嬩腑鐨?/span>褰㈣矊婕斿彉紺烘剰鍥俱?/span>
鍥?/span>2. (a, b) Si-CMC/PA澶嶅悎鐗?/span>鐨?/span>TEM鍥懼拰(c) HRTEM鍥?/span>錛屼互鍙?/span>瀵瑰簲鐨?/span>鍏冪礌mapping鍥?/span>(d-h)銆?/span>Si-CMC/PA鍜?/span>Si-CMC鐢墊瀬鐨勯珮鍒嗚鯨XPS璋卞浘錛?/span>(i) Si 2p鍜?/span>(j) C 1s錛?/span>(k) Si-CMC/PA鐨?/span>P 2p鐨勯珮鍒嗚鯨XPS璋?/span>鍥?/span>銆?/span>(l)綰?/span>Si銆?/span>Si-CMC銆?/span>Si-CMC/PA澶嶅悎鐗?/span>鐨?/span>FT-IR璋卞浘銆?/span>
鍥?/span>3. Si-CMC鍜?/span>Si-CMC/PA鐨勬祦鍙樻ц兘(a)鍜屽墺紱昏瘯楠岀粨鏋?/span>(b)銆?/span> CMC鍜?/span>CMC/PA綺樼粨鍓傝杽鑶滅殑搴斿彉-搴斿姏鏇茬嚎(c)錛?/span>鏉ㄦ皬妯￠噺(d)鍜屾柇瑁傚簲鍔?/span>(e)銆?/span>
鍥?/span>4. 鐢?shù)鍖栧鎬ц兘錛?/span>Si-CMC/PA鐢墊瀬鐨?/span>CV鏇茬嚎(a)鍜屽厖鏀?/span>鐢墊洸綰?/span>(b)銆?/span>Si-CMC/PA鍜?/span>Si-CMC鍦?/span>0.5 A g?1涓嬬殑寰幆鎬ц兘(c)錛屽嶇巼鎬ц兘錛?/span>d錛変互鍙?/span>鍦?/span>4 A g?1涓?/span>鐨?/span>闀?/span>鍛?/span>鏈熷驚鐜ц兘錛?/span>e錛夛紝鍏ㄧ數(shù)姹犲湪1 C涓嬬殑寰幆鎬ц兘(f)鍜?/span>鍊嶇巼鎬ц兘(g)銆?/span>
鍥?/span>5. Si-CMC/PA鐢墊瀬鍒濆鎬?/span>TEM鍥?/span>(a)鍜?/span>棣栨閿傚寲涓嶅悓鏃跺埢TEM鍥?/span>(b-d)銆?/span>棣栨閿傚寲榪囩▼涓墍鏍囪鍖虹殑紜呯撼綾抽綺掑洟鑱氫綋鐨勯暱鐭醬闀垮害鍙樺寲鐩存柟鍥?/span>(e)銆?/span>Si-CMC/PA鐢墊瀬鐨勯夊尯鐢?shù)瀛愯灏勫浘锛?xì)(f)鍒濆鎬?/span>錛?/span>(g)棣栨閿傚寲鍚庡拰(h)棣栨鑴遍攤鍚?/span>銆傚彟涓涓?/span>Si-CMC/PA鐢墊瀬涓変釜鍘熶綅鐢?shù)鍖栧弩@鐜殑TEM鍥?/span>(i-p)銆?/span>
鍥?/span>6. Si-CMC/PA鐢墊瀬鍦?/span>4 A g?1涓嬪驚鐜?/span>200嬈″悗鐨勫艦璨?/span>:(a,b) TEM鍥撅紝(c,d) HRTEM鍥撅紝(e) SAED鍥撅紝(f-l) HAADF鍥句互鍙?/span>瀵瑰簲鐨勫厓绱?/span>mapping鍥?/span>銆?/span>
鍥?/span>7. SEI鍖栧鎴愬垎錛?/span>Si-CMC/PA鐢墊瀬涓嶅悓寰幆嬈℃暟鍚庣殑楂樺垎杈ㄧ巼XPS璋卞浘(a) C 1s鍜?/span>(b) F 1s錛?/span>Si-CMC鐢墊瀬涓嶅悓寰幆嬈℃暟鍚庣殑楂樺垎杈ㄧ巼XPS璋卞浘(c) C 1s鍜?/span>(d) F 1s銆?/span>
璇ユ垚鏋滆繎鏃ヤ互棰?/span>鈥?/span>Constructing Robust Cross-Linked Binder Networks for Silicon Anodes with Improved Lithium Storage Performance鈥?span style="font-family:瀹嬩綋;">鍙戣〃鍦?/span>ACS Applied Materials & Interfaces涓?/span>錛?span style="font-family:;">DOI: 10.1021/acsami.1c14907錛夈傚帵闂ㄥぇ瀛︽潗鏂欏闄㈠崥澹敓閮戝織鏄庝負(fù)璇ヨ鏂囩殑絎竴浣滆咃紝鐜嬮福鐢熸暀鎺堜負(fù)鏈枃閫氳浣滆咃紙璇﹁璇鵑緗戠珯http://mswang.xmu.edu.cn錛夈?/span>
鍘熸枃閾炬帴
https://doi.org/10.1021/acsami.1c14907
鍏嶈矗澹版槑錛氶儴鍒嗚祫鏂欐潵婧愪簬緗戠粶錛岃漿杞界殑鐩殑鍦ㄤ簬浼犻掓洿澶氫俊鎭強(qiáng)鍒嗕韓錛屽茍涓嶆剰鍛崇潃璧炲悓鍏惰鐐規(guī)垨璇佸疄鍏剁湡瀹炴э紝
涔熶笉鏋勬垚鍏朵粬寤鴻銆備粎鎻愪緵浜ゆ祦騫沖彴錛屼笉涓哄叾鐗堟潈璐熻矗銆傚娑夊強(qiáng)渚墊潈錛岃鑱旂郴鎴戜滑鍙?qiáng)鏃朵慨鏀规垨鍒犻櫎銆?br>閭錛歩nfo@polymer.cn
錛堣矗浠葷紪杈戯細(xì)sun錛?
