Silicon-stabilized lithium metal powder (SLMP) composite anodes for fast charging by in-situ prelithiation

Jang, Eunbin; Ryu, Sam Gon; Kim, Myeongjin; Choi, Jung‐Hyun; Yoo, Jeeyoung

doi:10.1016/j.jpowsour.2023.233326

Cited by 8 publications

(4 citation statements)

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“…A primary example of this is the stabilized lithium metal powder or SLMP, which is one of the earliest commercialized high-activity Li-containing prelithiation reagents of lithium metal particles stabilized by a passivating layer Li 2 CO 3 . [36,[41][42][43][44][45] Li et al reported the utilization of SLMP for the prelithiation of graphite and hard-carbon electrodes with ICE improvements from 82 % to 91 %. The surface passivating layer was reported to have nanosized columnar structures providing air and solvent stability to the Li metal.…”

Section: High-activity LI Reagents and Solutionsmentioning

confidence: 99%

“…[64] SLMPs are another class of prelithiation reagents that take advantage of outer protective layers to achieve good ambient air stability with its passivating Li 2 CO 3 layer. [36,[41][42][43][44][45] The commercialization of SLMP puts within reach enhanced safety, good ambient stability, compatibility, and good prelithiation efficiency for most LIB systems, which could drastically improve the standards for next-generation anode materials. [89][90][91] The previous section discussed several advancements in nextgeneration anode prelithiation using SLMP as the primary prelithiation material.…”

Section: Protective Layermentioning

confidence: 99%

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Objective Review on Commercially Viable Prelithiation Techniques for Lithium‐ion Batteries

Lau,

Kuo,

Lan

2023

ChemElectroChem

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The rapid increase in global energy storage demands has necessitated the adoption of next‐generation lithium‐ion battery anode materials. However, these anode materials′ high lithium loss and poor cycling stability hinder their commercial application. The emergence of prelithiation offers a promising strategy for improving the lithium utilization efficiency of these active materials, thereby providing a solution for the performance bottleneck of next‐generation anode materials. The current review compiled and systematically discusses recent and notable prelithiation techniques concerning its potential for commercialization. The challenges currently hindering easy commercial adoption of the various prelithiation techniques and the potential development direction of each technique are analyzed. The commercial potential of the prelithiation methods is discussed based on the following four main criteria: electrochemical performance, ambient stability, cost, and industrial scalability. Finally, insights regarding further development of each prelithiation technique are provided, considering their unique advantages and disadvantages. The current review allows the industry and researchers to compare the commercial potential of various prelithiation techniques while considering their specific circumstances.

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Section: High-activity LI Reagents and Solutionsmentioning

confidence: 99%

Section: Protective Layermentioning

confidence: 99%

Objective Review on Commercially Viable Prelithiation Techniques for Lithium‐ion Batteries

Lau,

Kuo,

Lan

2023

ChemElectroChem

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“…Prelithiation method using SLMP without electrolyte has been reported in the past as well. Jang et al successfully implemented the prelithiation of Si without carbon paired with fluorinated polymer to mitigate SEI in liquid electrolyte 33 . Lee et al enabled the SLMP-induced prelithiation of graphite-silicon without electrolyte in all-solid-state batteries 34 .…”

Section: Introductionmentioning

confidence: 99%

Overcoming low initial coulombic efficiencies of Si anodes through prelithiation in all-solid-state batteries

Ham,

Sebti,

Cronk

et al. 2024

Nat Commun

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All-solid-state batteries using Si as the anode have shown promising performance without continual solid-electrolyte interface (SEI) growth. However, the first cycle irreversible capacity loss yields low initial Coulombic efficiency (ICE) of Si, limiting the energy density. To address this, we adopt a prelithiation strategy to increase ICE and conductivity of all-solid-state Si cells. A significant increase in ICE is observed for Li1Si anode paired with a lithium cobalt oxide (LCO) cathode. Additionally, a comparison with lithium nickel manganese cobalt oxide (NCM) reveals that performance improvements with Si prelithiation is only applicable for full cells dominated by high anode irreversibility. With this prelithiation strategy, 15% improvement in capacity retention is achieved after 1000 cycles compared to a pure Si. With Li1Si, a high areal capacity of up to 10 mAh cm–2 is attained using a dry-processed LCO cathode film, suggesting that the prelithiation method may be suitable for high-loading next-generation all-solid-state batteries.

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“…Predose of extra Li source before the cell assembly is considered an effective strategy to enhance the reversible cyclability during the long-term operation. [43][44][45][46] For the traditional anodes, the incorporation of Li-containing additives like the stabilized lithium metal powder (SLMP), [47][48][49][50] Li x Si@Li 2 O, [51,52] artificial-SEI-coated Li x Si [53] or Li x Sn@Ppy [54] with the low equilibrium potential, was carried out during the preparation of the electrode slurry. However, Li-containing additives are sensitive to water, oxygen, and polar solvents, which present additional obstacles to electrode processing.…”

Section: Introductionmentioning

confidence: 99%

A Thin‐Layer, Li⁺ Compensation, Moisture‐Tolerant Interfacial Modification of Cu Substrate Toward the Anode‐Less, Energy/Power Dense Li Metallic Batteries

Wang,

Yuan,

Jia

et al. 2024

Adv Funct Materials

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The unregulated metallic deposition and continuous cracking of the fragile solid electrolyte interphase are considered the critical barriers that compromise the cyclability of lithium metal batteries (LMB), especially under low N/P ratio (<3) pairing modes. Herein, an ultra‐thin (5 µm), lightweight (0.25 mg cm−2), and moisture‐proof interfacial layer composed of the high‐entropy alloys (denoted as HEAs) and interweaved carbon nanotubes (CNTs) scaffold is constructed to modify the current collector, moreover, the thermally‐induced Li22Si5 alloy blended with the hydrophobic ethylene‐vinyl acetate copolymer (EVA) is infiltrated into the scaffold pores as the moisture‐proof cation reservoir. The HEA@CNT/Li22Si5@EVA interfacial layer not only maximizes the Li‐utilization degree with minimal voltage divergence in symmetric cells but also compensates for irreversible Li depletion in the pouch‐format anode‐less models. As the HEA@CNT/Li22Si5@EVA‐Cu substrate paired with the LiNi0.8Mn0.1Co0.1O2 cathode in a 200 mAh prototype, the phase evolution of oxide cathode and efficient Li utilization at the anode substrate can be real‐time monitored by the transmission‐mode operando X‐ray diffraction. This interfacial layer strategy affords multifunctionality to enable the LMB prototyping without excessive Li abuse. Consequently, cycling endurance and the balanced energy densities (420.1 Wh kg−1) are obtained on the whole cell.

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Silicon-stabilized lithium metal powder (SLMP) composite anodes for fast charging by in-situ prelithiation

Cited by 8 publications

References 50 publications

Objective Review on Commercially Viable Prelithiation Techniques for Lithium‐ion Batteries

Objective Review on Commercially Viable Prelithiation Techniques for Lithium‐ion Batteries

Overcoming low initial coulombic efficiencies of Si anodes through prelithiation in all-solid-state batteries

A Thin‐Layer, Li⁺ Compensation, Moisture‐Tolerant Interfacial Modification of Cu Substrate Toward the Anode‐Less, Energy/Power Dense Li Metallic Batteries

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Silicon-stabilized lithium metal powder (SLMP) composite anodes for fast charging by in-situ prelithiation

Cited by 8 publications

References 50 publications

Objective Review on Commercially Viable Prelithiation Techniques for Lithium‐ion Batteries

Objective Review on Commercially Viable Prelithiation Techniques for Lithium‐ion Batteries

Overcoming low initial coulombic efficiencies of Si anodes through prelithiation in all-solid-state batteries

A Thin‐Layer, Li+ Compensation, Moisture‐Tolerant Interfacial Modification of Cu Substrate Toward the Anode‐Less, Energy/Power Dense Li Metallic Batteries

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A Thin‐Layer, Li⁺ Compensation, Moisture‐Tolerant Interfacial Modification of Cu Substrate Toward the Anode‐Less, Energy/Power Dense Li Metallic Batteries