Challenges of prelithiation strategies for next generation high energy lithium-ion batteries

Min, Xueqing; Xu, Gaojie; Xie, Bin; Guan, Ping; Sun, Mingliang; Cui, Guanglei

doi:10.1016/j.ensm.2022.02.005

Cited by 110 publications

(56 citation statements)

References 185 publications

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“…These understandings teach us that a pre-lithiation treatment on the LNMO cathode and/or Gr anode is significantly beneficial. [62,63] Possible methods include chemical reduction of LNMO with Licontaining reducing agents, [64][65][66] direct contact of metallic Li with Gr in the electrolyte, [67] mechanically mixing Li powder with Gr, [68] and solution-based chemical pre-lithiation of Gr. [69,70] Third, an inorganic-rich artificial SEI formed by pre-cycling Gr in a FEC-containing electrolyte enables good surface passivation and reduces impedance buildup and capacity loss.…”

Section: Inspirations From the Electrochemical Modifications And Path...mentioning

confidence: 99%

Paving Pathways Toward Long‐Life Graphite/LiNi_0.5Mn_1.5O₄ Full Cells: Electrochemical and Interphasial Points of View

Cui

Zou

Celio

et al. 2022

Adv Funct Materials

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The high‐voltage spinel cathode LiNi0.5Mn1.5O4 (LNMO) with no cobalt and low nickel content is promising for lithium‐ion batteries due to its high energy and power densities, good thermal stability, and low cost. However, its high operating voltage (≈4.7 V) results in a decomposition of the electrolyte, severe chemical crossover, and deterioration of electrode‐electrolyte interphases (EEIs), hindering its practical viability. It is demonstrated here that by electrochemically pre‐cycling the graphite in an electrolyte containing 30 wt.% fluoroethylene carbonate, a robust LiF‐rich artificial solid electrolyte interphase can be constructed for surface protection; on the other hand, an electrochemical pre‐lithiation of Fe‐doped LNMO serves as a lithium source for graphite at a full‐cell voltage of 2.6 V. As a result, the full cells with the as‐modified electrodes deliver a high capacity of 129 mA h g−1 with an excellent capacity retention of 93% after 200 cycles, vastly outperforming the full cells with fresh electrodes (120 mA h g−1 initial capacity with 78% retention). Finally, pathways toward long‐life graphite||LNMO full cells are pictured based on the inspirations from the electrochemical modifications and in‐depth analyses of the EEIs in this study.

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Section: Inspirations From the Electrochemical Modifications And Path...mentioning

confidence: 99%

Paving Pathways Toward Long‐Life Graphite/LiNi_0.5Mn_1.5O₄ Full Cells: Electrochemical and Interphasial Points of View

Cui

Zou

Celio

et al. 2022

Adv Funct Materials

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“…[11,12] Therefore, compensating the Li loss during initial cycles is necessary for successful utilization of SiO x in high-energy-density full cells. [13,14] Li compensation can be generally divided into two categories: ex situ and in situ methods. Mixing sacrificial additives with active materials is a typical in situ approach, which depends on electrochemical oxidation of additives to compensate the Li loss.…”

Section: Introductionmentioning

confidence: 99%

Constructing a Robust Solid–Electrolyte Interphase Layer via Chemical Prelithiation for High‐Performance SiO_xAnode

Chen

Wang

et al. 2022

Adv Energy and Sustain Res

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Being considered as a promising anode material for next‐generation lithium‐ion batteries, silicon oxide (SiOx) suffers from low initial coulombic eﬃciency and unstable solid–electrolyte interphase (SEI), which hinder its commercial use. To address these issues, herein, an optimized chemical prelithiation method is developed using a molecularly engineered lithium–biphenyl‐type complex, which facilitates improved prelithiation efficiency. More importantly, owing to the reaction between the prelithiation agent and sodium carboxymethyl cellulose binder, a stable artificial SEI layer with hard inorganic particles embedded in soft organic matrix can be preformed on the surface of the SiOx anode after prelithiation. The preformed SEI layer remains stable during long‐term cycling, contributing to significant improvement of capacity retention (87.4%) over pristine SiOx (68.6%) after 100 cycles at 0.2 C. Through demonstrating a hitherto unknown interfacial constructing strategy for SiOx, this study provides a fresh perspective on realizing high‐capacity Si‐based anodes.

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“…Li metal is recognized as a promising anode material for the next generation rechargeable batteries owing to its extremely high theoretical specific capacity (3860 mA h g À1 ) and lowest electrochemical potential (À3.04 V). [1][2][3] However, conventional liquid electrolytes (LEs) are thermodynamically unstable with highly reactive Li. [4][5][6] The formed fragile solid electrolyte interface (SEI) is constantly rupturing/repairing, leading to the rapid depletion of Li and the electrolyte.…”

mentioning

confidence: 99%

Ternary-salt solid polymer electrolyte for high-rate and long-life lithium metal batteries

et al. 2022

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Challenges of prelithiation strategies for next generation high energy lithium-ion batteries

Cited by 110 publications

References 185 publications

Paving Pathways Toward Long‐Life Graphite/LiNi_0.5Mn_1.5O₄ Full Cells: Electrochemical and Interphasial Points of View

Paving Pathways Toward Long‐Life Graphite/LiNi_0.5Mn_1.5O₄ Full Cells: Electrochemical and Interphasial Points of View

Constructing a Robust Solid–Electrolyte Interphase Layer via Chemical Prelithiation for High‐Performance SiO_xAnode

Ternary-salt solid polymer electrolyte for high-rate and long-life lithium metal batteries

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Challenges of prelithiation strategies for next generation high energy lithium-ion batteries

Cited by 110 publications

References 185 publications

Paving Pathways Toward Long‐Life Graphite/LiNi0.5Mn1.5O4 Full Cells: Electrochemical and Interphasial Points of View

Paving Pathways Toward Long‐Life Graphite/LiNi0.5Mn1.5O4 Full Cells: Electrochemical and Interphasial Points of View

Constructing a Robust Solid–Electrolyte Interphase Layer via Chemical Prelithiation for High‐Performance SiOxAnode

Ternary-salt solid polymer electrolyte for high-rate and long-life lithium metal batteries

Contact Info

Product

Resources

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Paving Pathways Toward Long‐Life Graphite/LiNi_0.5Mn_1.5O₄ Full Cells: Electrochemical and Interphasial Points of View

Paving Pathways Toward Long‐Life Graphite/LiNi_0.5Mn_1.5O₄ Full Cells: Electrochemical and Interphasial Points of View

Constructing a Robust Solid–Electrolyte Interphase Layer via Chemical Prelithiation for High‐Performance SiO_xAnode