Page 204 - 《精细化工》2023年第4期

g890g ㇫㏳ࡃጒ FINE CHEMICALS す 40 ࢤ

MFS ⩢㼐⋟͚ᓗ⣜ 3 ⁎ऻ⩢ࢸԊᠮౕ 4.95 V ⮱䃎ᬣ 㼐䉕⮱⩹䲏᱗Ⴙڕ⎬⋓᝭㜡 [16] ȡ㏼䓴 300 ⁎ᓗ⣜ऻ喑
⩢≮৺Ꮑȡധ⵭⩢㼐⋟͚ LNMO ⩢Ხ⮱₸⪆⩢≮๔ ౕധ⵭⩢㼐⋟͚ᓗ⣜ऻ⮱⩢↍䭨ោ๔λक़ MFS ⩢
λक़ MFS ⌨ߍݯ⩢㼐⋟͚⮱₸⪆⩢≮喑䃮჋γ MFS 㼐⋟⮱⩢↍ȡౕധ⵭⩢㼐⋟͚ᓗ⣜ऻϔ⩌⮱ጕ๔⩹
㘪์ើݣ⩢㼐⋟⮱⅔ࡃܳ㼐ȡ 䲏⩢䭨᭜⩞λ⩢㼐⋟ܳ㼐হ LNMO ᱽ᫆ⵡ౼ᄩ㜡
⩢Ხ/⩢㼐⋟⩹䲏䭨ោ෋ߍȡ㔹ౕक़ MFS ⮱⩢㼐⋟
͚ᓗ⣜⮱⩢↍䭨ោ䒰ᄼ喑᭜⩞λ MFS ౕ LNMO 㶕䲏
ᒏ᜽γ⽠Ⴧ⮱⩹䲏ᅯ喑ϻ㔹ᩦ઱γ⩢Ხ⮱⩢ࡃ႓ᕔ㘪ȡ
2.2 ⩢Ხᱽ᫆ᓗ⣜ݺऻ⮱㶕ᒮ
LNMO ⩢Ხౕᓗ⣜ 300 ⁎ݺऻ⮱ XRD 䅞ఫຯ
ఫ 4a ᝭⹧ȡ

ఫ 3 ̺ह⩢㼐⋟̸⮱䃎ᬣ⩢≮৺Ꮑᰟ㏬喍a喎喑ౕധ⵭⩢
㼐⋟হक़ 0.3% MFS ⮱⩢㼐⋟͚ᓗ⣜ݺ喍b喎হ 300
⁎ऻ喍c喎⮱⩢ࡃ႓ϑ≮䭨ោ䅞
Fig. 3 Chronoamperometric responses (a), electrochemical
impedance spectra of Li/LNMO in base and 0.3%
MFS-containing electrolytes before (b) and after
300 cycles (c)

ఫ 4 ౕധ⵭⩢㼐⋟হक़ᰶ 0.3% MFS ⩢㼐⋟ᓗ⣜ 300 ⁎
ఫ 3b হ c ͧ Li/LNMO ⩢↍ౕധ⵭⩢㼐⋟হक़
0.3% MFS ⩢㼐⋟͚ᓗ⣜ݺऻ⮱ϑ≮䭨ោ䅞ȡजВⰸ ݺऻ LNMO ⩢Ხ⮱ XRD 䅞ఫ喍a喎ȠFTIR 䅞ఫ喍b喎
ࣷᓗ⣜ऻ䨯䉌Ხ̷↶⼜⮱䓴⍎䛾ᆋ⮱क़䛼喍c喎
ܧ喑᝭ᰶᰟ㏬䘪᭜⩞倅䶾ࡧ⮱ࡷళহѻ䶾ࡧ⮱᫉㏬
Fig. 4 XRD patterns (a) and FTIR spectra (b) of LNMO
㏱᜽ȡ倅䶾ࡷళ̻䨯⻨ၽ䕇䓴⩹䲏㛉⮱э䔿䓴⼸হ electrode before and after 300 cycles in base and
⩢Ხ⩹䲏⩢㢤䒙⼨䓴⼸Ⱕڠ喑⊶ࣷ⩹䲏㛉⩢䭨喍R f 喎 0.3% MFS-containing electrolytes as well as
contents of deposited transition metals on Li
হ⩢㢤䒙⼨⩢䭨喍R ct 喎喑ѻ䶾䘕ܳ⮱̭᲎Ⱑ㏬ͧ䴓ќ electrode after 300 cycles (c)
䭨ោ喍W o 喎 [15] ȡຯఫ 3b হ c ᝭⹧喑ᓗ⣜ݺ喑क़̻
̺क़ 0.3% MFS ⩢㼐⋟⮱⩢Ხ⩹䲏⩢䭨Ⱕѩ喑́℁ जВⰸܧ喑᝭ᰶ⩢Ხ䘪㶕⣝ܧڥಸ⮱ LNMO ᅃ
ᓗ⣜ऻ⮱⩢Ხ⩹䲏⩢䭨๔喑䔆ज㘪᭜⩞λ⩢Ხ̻⩢ ᮣⴠ㵺ᄱȡ♣㔹喑ౕധ⵭⩢㼐⋟͚ᓗ⣜ऻ⩢Ხ⮱ም