閽犵瀛愮數姹犵敱浜庡洜鍌ㄩ噺涓板瘜鏄撲簬鑾峰彇锛屼綔涓洪攤绂诲瓙鐢垫睜鐨勬浛浠ｅ搧澶囧彈鍏虫敞銆侟/span>NaFePO4鍥犳嫢鏈夐珮鐞嗚瀹归噺銆佷綆鎴愭湰銆侀珮缁撴瀯绋冲畾鎬х瓑浼樺娍銆侟/span>鐒惰€岋紝鐞嗚鍜屽疄楠岃瘉鏄庯紝鐑姏瀛︾ǔ瀹欬/span>NaFePO4鐩伏/span>浣滈挔绂诲瓙鐢垫睜姝ｆ瀬鏃舵槸鐢靛寲瀛︽儼鎬х殑銆侟/span>濡備綍鍒╃敤鐑姏瀛︾ǔ瀹氱７閾侀挔鐭军/span>NaFePO4鏄湰棰嗗煙浜熷緟绐佺牬鐨勯噸瑕佺瀛﹀拰鎶€鏈棶棰樸€侟/span>

銆愮爺绌惰繃绋嬨€慄/span>

姝︽眽鐞嗗伐澶у鏉愭枡瀛︾棣栧腑鏁欐巿楹︾珛寮裹/span>鍙婄閰哥洂鍥藉閲嶇偣瀹為獙瀹｜/span>闄舵捣寰?/span>鍥㈤槦閫氳繃楂樿兘鐞冪（锛屽埗澶囦簡鍏锋湁涓嶅悓闈炴櫠鐩稿惈閲忕殑绯诲垪NaFePO4澶嶅悎鏉愭枡锛岃瘉鏄庝簡闈炴櫠鐩稿惈閲忎笌鍌ㄩ挔瀹归噺涔嬮棿鐨勫叧绯伙紱

鈫 姝ゅ浘涓篎RITSCH鍒朵綔鐨勫疄楠岃繃绋嬬ず鎰忓浘

楹︾珛寮烘暀鎺堜娇鐢?/span>楂樿兘琛屾槦寮忕悆纾ㄦ満鍒跺骞朵笉鏂紭鍖栧鍚堟潗鏂欑殑鎬ц兘锛屽湪800rpm楂樿浆閫熶笅锛屽皢NaFePO4澶嶅悎鏉愭枡涓?.5ml寮備笝閱囧叡娣风悆纾?-25灏忔椂锛屼互瑙傚療涓嶅悓鐞冪（鏃堕棿杈惧埌鐨勪紭鍖栨晥鏋溿€備粠SEM鐓х墖涓嶉毦鐪嬪嚭锛岀粷澶у鏁?span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;">NaFePO4澶嶅悎鏉愭枡宸茶鐮旂（鑷颤/span>100nm浠ヤ笅銆侟/span>

浼樺寲鍚庣殑NaFePO4澶嶅悎鏉愭枡琛ㄧ幇鍑裹strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;">浼樺紓鐨勫惊鐜ǔ瀹氭€?/strong>锛屽湪1 C鍊嶇巼涓嬪閲忕害115 mAh/g,寰幆800娆″悗瀹归噺淇濇寔鐜囦负91.3%锛涚粨鍚堝悓姝ヨ緪灏勩€佹媺鏇兼暎灏勭瓑鎶€鏈柟娉曪紝鎻ず浜嗘棤搴忓伐绋嬫彁鍗囧偍閽犳€ц兘鐨勫師瀛愬昂搴︾粨鏋勮捣婧愶紝鎻愪緵浜嗕竴绉嶆敼鍠勭數姹犳€ц兘鐨勬柊閫斿緞锛屽悓鏃朵篃涓虹數姹犵殑鐮旂┒寮€杈熶簡涓€涓柊鐨勭爺绌舵柟鍚戙€侟/span>

銆愮爺绌舵垚鏋溿€慄/span>

(a) 鏅舵€佺７閾侀挔鐭縉aFePO4鍜岀悆纾ㄤ笉鍚屾椂闂寸殑NaFePO4鍦? C锛?55 mA g-1锛夊€嶇巼涓嬬殑寰幆鎬ц兘銆侟/span>

(b) 鐞冪（15灏忔椂鐨凬aFePO4瀵瑰簲鐨勫厖鏀剧數鏇茬嚎;

(c) 鐞冪（15灏忔椂鐨凬aFePO4鐨勫惊鐜€ц兘.

(d) 鐞冪（15灏忔椂鐨凬aFePO4鐨勫€嶇巼鎬ц兘

(a-c) FESEM 鍥惧儚锛欬/span>鐞冪（5灏忔椂鐨凕/span>NaFePO4(b),鍜孅/span>鐞冪（15灏忔椂鐨凕/span>NaFePO4(c)锛汓/span>

(d) 鐞冪（15灏忔椂NaFePO4鐨凾EM鍥惧儚锛?nbsp;

(e-g) HRTEM鍥惧儚锛欬/span>鏅舵€?/span>纾烽搧閽犵熆NaFePO4(e)锛岀悆纾?/span>5灏忔椂鐨凕/span>NaFePO4(f)鍜岀悆纾?/span>15灏忔椂鐨凕/span>NaFePO4(g)锛汓/span>

(h) 鐞冪（15灏忔椂鐨凬aFePO4HAADF鍥惧儚鍜孍DS鍏冪礌鍒嗗竷鍥俱€侟/span>

鐞冪（涓嶅悓绋嬪害鍚嶯aFePO4鐨勭浉鍙楛/span>

銆愬皬缁撱€慄/span>

閫氳繃璋冩帶鐞冪（鍙傛暟鍒跺浜嗗叿鏈変笉鍚岄潪鏅剁浉鍚噺NaFePO4鍚岃川澶氱浉澶嶅悎鏉愭枡锛屽苟璇佹槑浜嗛潪鏅剁浉鍚噺涓庡偍閽犲閲忎箣闂寸殑鍏崇郴銆備紭鍖栧悗鐨凬aFePO4灞曠幇鍑轰紭寮傜殑寰幆绋冲畾鎬э紝鍦?C鍊嶇巼涓嬪閲忕害115mAh/g, 寰幆800娆″悗瀹归噺淇濇寔鐜嘃/span>91.3%銆傝繖鍙互褰掑洜浜庨潪鏅剁浉涓庢櫠鐩哥殑鍗忓悓鏁堝簲锛屽嵆娲绘€х殑闈炴櫠鐩告湁鍒╀簬瀹炵幇楂樼殑鍌ㄩ挔瀹归噺锛岃€岄潪娲绘€х殑鏅剁浉鑳藉澧炲己缁撴瀯绋冲畾鎬с€侟/span>

姝ゅ锛屾彮绀轰簡璇ユ潗鏂欎腑鏃犲簭宸ョ▼鎻愬崌鍌ㄩ挔鎬ц兘鐨勫師瀛愬昂搴︾粨鏋勮捣婧愶紝鍗抽潪鏅跺寲杩囩▼涓叡杈圭殑[FeO6]鍏潰浣撳悜鍏遍《鎴栧叡杈筟FeOn]澶氶潰浣撶殑杞彉鏄幏寰楅珮鍌ㄩ挔鎬ц兘鐨勫叧閿€備綔鑰呴€氳繃绯荤粺琛ㄥ緛鍙戠幇浜嗘棤搴忓伐绋嬫彁鍗嘚aFePO4鐢靛寲瀛︽€ц兘鐨勫師瀛愬昂搴︽満鍒讹紝璇ュ伐浣滀负閫氳繃鏃犲簭宸ョ▼寮€鍙戞柊鐨勭數鏋佹潗鏂欏叿鏈夐噸瑕佹寚瀵兼剰涔夈€侟/span>

璁烘枃绗竴浣滆€呮槸闄舵捣寰佹暀鎺堛€侀害绔嬪己鏁欐巿鍜屽渤杩滃緛鏁欐巿鎸囧鐨勫崥澹敓鐔婃柟瀹囷紝闄舵捣寰佹暀鎺堝拰宀宠繙寰佹暀鎺堟槸閫氳浣滆€咃紝杩戞棩浠モ€淩evealing the atomistic origin of the disorder-enhancedNa-storage performance in NaFePO4 battery cathode鈥濅负棰樼洰鍙戣〃鍦∟ano Energy涓娿€侟/span>