All-solid-state batteries with metallic lithium (Li BCC) anode and solid electrolyte (SE) are under active development.However, an unstable SE/Li BCC interface due to electrochemical and mechanical instabilities hinders their operation. Herein, an ultra-thin nanoporous mixed ionic and electronic conductor (MIEC) interlayer (≈3.25 µm), which …
, ... Energy Mater 2024;4:400029. 10.20517/energymater.2023.93 | © The Author (s) 2024. Ultrathin lithium (Li) metal foils with controllable capacity could realize high-specific-energy batteries; however, the pulverization of Li metal foils due to its extreme volume change results in rapid active Li loss and capacity fading.
Consequently, the controllable construction of thin lithium metal negative electrodes would be critical for improving battery energy density and safety and, more importantly, for fully and accurately exploring battery operation/failure mechanisms.
Li metal batteries have been widely expected to break the energy-density limits of current Li-ion batteries, showing impressive prospects for the next-generation electrochemical energy storage system. Although much progress has been achieved in stabilizing the Li metal anode, the current Li electrode still lacks efficiency and safety.
This work proposes the use of vacuum thermal evaporation of Li metal to produce ultra-thin, dense, homogeneous, smooth, and high-performance Li metal anodes. It is demonstrated that the thermally evaporated ultra-thin Li metal anode has a passivation layer which is one order of magnitude thinner compared to that of commercial extruded Li metal.
Communications Materials 5, Article number: 179 (2024) Cite this article The passivation layer that naturally forms on the lithium metal surface contributes to dendrite formation in lithium metal batteries by affecting lithium nucleation uniformity during charging.
Controllable engineering of thin lithium (Li) metal is essential for increasing the energy density of solid-state batteries and clarifying the interfacial evolution mechanisms of a lithium metal negative electrode. However, fabricating a thin lithium electrode faces significant challenges due to the fragility and high viscosity of Li metal.
All-solid-state batteries with metallic lithium (Li BCC) anode and solid electrolyte (SE) are under active development.However, an unstable SE/Li BCC interface due to electrochemical and mechanical instabilities hinders their operation. Herein, an ultra-thin nanoporous mixed ionic and electronic conductor (MIEC) interlayer (≈3.25 µm), which …
The high-voltage solid-state Li/ceramic-based CSE/TiO 2 @NCM622 battery (0.2C, from 3 to 4.8 V) delivers a high capacity (110.4 mAh g −1 after 200 cycles) and high energy densities 398.3 and 376.1 Wh kg −1 at cell level (at 100 and 200 cycles, respectively), which is higher than the current US Advanced Battery Consortium (USABC) goals for ...
Therefore, pouch cells with ultra-thin composite showed significantly promoted energy density and lifespans in both Li–NCM and Li–S battery systems. More importantly, pouch cell with Li–Sn composite electrode showed better safety performance than that within pure Li foil, where the cell using Li foil anode caught on fire in less than 10 s ...
Here, vacuum thermal evaporation produces an ultra-thin lithium metal anode with reduced charge-transfer resistance that results in a more homogeneous and denser lithium plating.
Ultrathin lithium (Li) metal foils with controllable capacity could realize high-specific-energy batteries; however, the pulverization of Li metal foils due to its extreme volume change results in rapid active Li loss and capacity fading. Here, we report a strategy to stabilize ultrathin Li metal anode via in-situ transferring Li from ultrathin ...
Controllable engineering of thin lithium (Li) metal is essential for increasing the energy density of solid-state batteries and clarifying the interfacial evolution mechanisms of a...
In the face of this dilemma, all-solid-state lithium batteries (ASSLBs) are gradually becoming the preferred choice for high-security energy storage devices, as they avoid the use of combustible organic liquid electrolytes [5, 6].Solid polymeric electrolytes (SPEs) have absolute commercial advantages over solid oxide and sulfide electrolytes in terms of mass production …
Herein, an ultra–thin electrolyte (∼20 μm) was prepared by using expanded porous polytetrafluoroethylene (ePTFE) as a framework and filling the pores with a hybrid electrolyte; it exhibited a high stability, mechanical strength, flexibility, and ionic conductivity (0.27 mS cm −1). A new mechanism for fast lithium-ion conduction in the composite electrolyte was …
An expanded porous polytetrafluoroethylene (ePTFE)–enforced ultra–thin inorganic and organic electrolyte (ePESCE) is prepared and electrolyte–electrode(s) assembly …
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Coupling with LiNi 0.8 Co 0.1 Mn 0.1 O 2 (NCM 811) cathode and 11 µm bi-phase SSE, solid-state lithium metal batteries (SSLMBs) demonstrate long-term cycling …
Therefore, pouch cells with ultra-thin composite showed significantly promoted energy density and lifespans in both Li–NCM and Li–S battery systems. More importantly, pouch cell with Li–Sn composite electrode …
Also, the 5 μm-rGO/Li composite film was demonstrated with a superb pre-lithiation ability, which enables graphite and Si/C anode under practical loading conditions with significantly increased initial Coulombic efficiency to around 100% without generating excessive Li residue, providing a new application field of ultra-thin lithium in conventional Li-ion batteries.
Applied organic-inorganic composite, continuous phase enhancement and in situ integration have been devoted to reducing thickness of electrolyte membrane and improving battery performance.
Controllable engineering of thin lithium (Li) metal is essential for increasing the energy density of solid-state batteries and clarifying the interfacial evolution mechanisms of a...
The amorphous non-ultra-thin silicon film with a thickness of ∼ 700 nm was fabricated and used for the electrode of the lithium ion batteries. It had an initial specific capacity of 2258.5mAh g − 1 (areal capacity 0.374 mAh cm −2) and a capacity retention of 64.35% for 100 cycles at a current density of 0.5 A g − 1. The capacity of this ...
The cell that has ∼3.43 μm wetted Li metal with the lowest capacity ratio of negative to positive electrode (∼0.176) demonstrates outstanding electrochemical performance. This demonstration will suggest a new direction for advancing high-energy-density solid-state Li metal batteries.
Ultra-Thin Lithium Silicide Interlayer for Solid-State Lithium-Metal Batteries Jaekyung Sung, So Y eon Kim, Avetik Harutyunyan, Maedeh Amirmaleki, Y oonkwang Lee,
Lithium-ion batteries ... In Formula (1), E, A, r, and n are the activation energy, the preexponential factor, the reaction speed, and the reaction sequence of the four reactions. Then, the normalized thermal mass loss and the thermal mass loss ratio are computed according to Expressions (5), (6). Thus, 20 parameters should be estimated: four mean activation …
A nanoporous polyimide film filled with a solid polymer electrolyte has high ionic conductivity and high mechanical strength. An all-solid-state battery made with an approximately 10-μm-thick ...
Ultrathin lithium (Li) metal foils with controllable capacity could realize high-specific-energy batteries; however, the pulverization of Li metal foils due to its extreme volume change results in rapid active Li loss and capacity …
Here, vacuum thermal evaporation produces an ultra-thin lithium metal anode with reduced charge-transfer resistance that results in a more homogeneous and denser …
The cell that has ∼3.43 μm wetted Li metal with the lowest capacity ratio of negative to positive electrode (∼0.176) demonstrates outstanding electrochemical performance. This demonstration will suggest a new direction …
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