Stable artificial solid electrolyte interphase films for lithium metal anode via metal–organic frameworks cemented by polyvinyl alcohol

Abstract

Polyvinyl alcohol (PVA) as a “glue” to cement the metal organic framework (Zn-MOF) sheet as a reasonable artificial SEI film. The artificial SEI film can efficiently adapt to the changes of the volume during the cycle, significantly improve the stability of the Li metal anode.

Revealing and Elucidating ALD‐Derived Control of Lithium Plating Microstructure

“…To address the fallibilities of lithium metal, numerous strategies have been employed, ranging from designing electrolytes to reduce the number of side reactions between lithium and the electrolyte, [11][12][13][14] engineering hosts that accommodate and control the expansion of lithium, [15][16][17][18][19][20][21] and, in some very recent cases, to incorporating artificial SEIs that passivate the interface between lithium metal and the electrolyte. [22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37] Of all the modern strategies employed to passivate lithium metal, artificial SEIs positioned at the Li-electrolyte interface have shown some of the most promising results. Materials such as polymers, [25][26][27] inorganic metal oxides, [27][28][29] inorganic nitrides, [30] fluorides, [31][32][33] nanodiamond, [34] and hybrid structures [35,36] have been applied as interfacial layers, and for the most part, they support uniform plating and stripping of lithium by passivating the reactive Li surface against the electrolyte.…”

“…To address the fallibilities of lithium metal, numerous strategies have been employed, ranging from designing electrolytes to reduce the number of side reactions between lithium and the electrolyte, [ 11–14 ] engineering hosts that accommodate and control the expansion of lithium, [ 15–21 ] and, in some very recent cases, to incorporating artificial SEIs that passivate the interface between lithium metal and the electrolyte. [ 22–37 ]…”

Armoring Black Phosphorus Anode with Stable Metal–Organic-Framework Layer for Hybrid K-Ion Capacitors

“…ZIF-8 has attracted significant interest for its easy preparation, ordered nanoporous structure, exceptional mechanical stability and ultrahigh chemical stability resulting from the metal-nitrogen bonds [29]. Notably, it was reported that ZIF-8 could withstand metal ion intercalation/deintercalation [30][31][32], preserving its structure/chemical composition intact during cycles. For example, Fan et al introduced a stable artificial solid electrolyte interphase (SEI) film prepared by polyvinyl alcohol (PVA) cementing a metal-organic framework (Zn-MOF), which is beneficial for inhibiting dendrite growth and easing the volume change [30].…”

“…Notably, it was reported that ZIF-8 could withstand metal ion intercalation/deintercalation [30][31][32], preserving its structure/chemical composition intact during cycles. For example, Fan et al introduced a stable artificial solid electrolyte interphase (SEI) film prepared by polyvinyl alcohol (PVA) cementing a metal-organic framework (Zn-MOF), which is beneficial for inhibiting dendrite growth and easing the volume change [30]. Li et al reported the commercial LiNi 1/3 Co 1/3 Mn 1/3 O 2 (NCM 333 ) cathode modified by synthesizing ZIF-8 in situ on the surface of NCM 333 , in which ZIF-8 can not only act as a shield against the electrolyte corrosion, but also enable faster lithium-ion transfer at the interfacial regions [31].…”

Effective suppression of lithium dendrite growth using fluorinated polysulfonamide-containing single-ion conducting polymer electrolytes

“…But the native SEI layer exhibits low ionic conductivity (4.2 Â 10 À8 S cm À1 ), 10 structural instability and chemical heterogeneity, 11 which induce heterogeneous electrodeposition resulting in dendrite growth. Many studies have disclosed various measures such as use of solid electrolytes or gel electrolytes, 4,8,[12][13][14][15][16] construction of an artificial solid electrolyte interface (SEI) layer, [17][18][19][20][21][22][23]54 design of functionalized separators, [24][25][26][27][28][29][30] and improvement of the structure of current collectors 2,[31][32][33][34][35][36][37] to suppress the formation and growth of lithium dendrites. Construction of an artificial SEI layer is one good solution to solve the challenge of suppressing the formation and growth of lithium dendrites.…”