New perspective to understand the effect of electrochemical prelithiation behaviors on silicon monoxide

Shen, Chengxu; Fu, Rusheng; Xia, Yonggao; Liu, Zhaoping

doi:10.1039/c8ra01917g

Cited by 57 publications

(57 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this case, the commercial micro‐SiO particles are prelithiated by EC method and the reaction products with the extension of the prelithiation time are simultaneously captured. [ 152 ] As shown in Figure 13d–f, it is noticed that the quantity of irreversible Li 4 SiO 4 , Li 2 O, and SEI (Li 2 CO 3 and LiF) and reversible Li x Si are enlarged as the increase of prelithiation time. When the prelithiation time extends over 20 min, only alloy reaction of Si is revealed.…”

Section: Investigation Of Prelithiation Degreementioning

confidence: 99%

See 1 more Smart Citation

Prelithiation/Presodiation Techniques for Advanced Electrochemical Energy Storage Systems: Concepts, Applications, and Perspectives

Zou

Deng

Cai

et al. 2020

Adv Funct Materials

178

122

View full text Add to dashboard Cite

Prelithiation/presodiation techniques are regarded as indispensable procedures in electrochemical energy storage (EES) systems, which can effectively compensate irreversible capacity loss, raise working voltage, and increase Li+/Na+ concentration in the electrolyte. Various prelithiation/presodiation methods have been successfully exploited and a revolutionary impact has been achieved through the utilization of prelithiation/presodiation techniques. It is well acknowledged that different prelithiation/presodiation strategies possess their own specific mechanisms, which play vital roles in the advancement of EES systems. However, there has rarely been systematical reviews about the concept and progress of prelithiation/presodiation techniques. Hence, in this review various prelithiation/presodiation approaches are comprehensively analyzed and summarized, and in‐depth prelithiation/presodiation behaviors and other innovative applications (including optimization of separators, amelioration of binders, regeneration of spent batteries) are discussed in detail. Finally, suggested future directions of prelithiation/presodiation techniques are proposed and it is expected that these prelithiation/presodiation techniques could provide guidance for construction of advanced EES systems and propel the commercialization process with a focus on safety considerations.

show abstract

Section: Investigation Of Prelithiation Degreementioning

confidence: 99%

“…In this case, the commercial micro-SiO particles are prelithiated by EC method and the reaction products with the extension of the prelithiation time are simultaneously captured. [152] As shown in Figure 13d Reproduced with permission. [146] Copyright 2017, Nature.…”

Section: Investigation Of Prelithiation Degreementioning

confidence: 99%

Prelithiation/Presodiation Techniques for Advanced Electrochemical Energy Storage Systems: Concepts, Applications, and Perspectives

Zou

Deng

Cai

et al. 2020

Adv Funct Materials

178

122

View full text Add to dashboard Cite

show abstract

“…Another alternative method is electrochemical prelithiation by discharging or short‐circuiting Gr anode in a temporary cell with a lithium foil as counter electrode. [ 25,26 ] This electrochemical method can prelithiate Gr electrode to a controllable degree, but it involves troublesome disassembly/reassembly of the Li/Gr half cells and is thereby only suitable for laboratory research.…”

Section: Introductionmentioning

confidence: 99%

Achieving Desirable Initial Coulombic Efficiencies and Full Capacity Utilization of Li‐Ion Batteries by Chemical Prelithiation of Graphite Anode

Shen

Yang

et al. 2021

Adv Funct Materials

146

105

View full text Add to dashboard Cite

Chemical prelithiation is an effective approach to elevate the initial Coulombic efficiency (ICE) and energy utilization of Li‐ion battery electrodes. However, this approach fails to operate for the most commonly used graphite (Gr) anode, because all the prelithiation reagents reported so far have a much higher redox potential than Gr (≈0.2 V). Based on ionic solvation and coordination chemistry, for the first time, a new design strategy is proposed for prelithiation solution by selecting a strong electron‐donating, sterically hindered, and chemically stable solvent to tune the redox potential of prelithiation reagent and also to prevent the solvent co‐intercalation during prelithiation process, thus enabling a successful prelithiation of Gr anodes. By theoretical prediction and experimental evaluation, a chemical prelithiation solution, lithium biphenylide/2‐methyl tetrahydrofuran, is successfully developed, which can prelithiate Gr anodes accurately to a desired state in few minutes without destroying the lattice structure of Gr. When the prelithiated Gr anodes (pGr) are paired with the conventional cathodes, the full cells demonstrate significantly improved ICEs and higher energy densities than their counterparts using pristine Gr anodes, showing a great prospect for wide Li‐ion battery applications.

show abstract

“…[ 50–52 ] As shown in the O 1s XPS spectrum (Figure 2h), one component at ≈531.5 eV is associated with O environments in the LiPAA binder and in the Li y SiO x . [ 49,53–55 ] The other peaks are detected at ≈528.7 and ≈532.1 eV, which can be respectively attributed to Li 2 O and SiO x . [ 35,49,56,57 ] According to the results of XPS spectra, when the SiO@PAA coating layer contacted with Li foil, in situ reaction occurred at the interface resulting in the formation of artificial protective layer.…”

Section: Resultsmentioning

confidence: 99%

Design of Robust, Lithiophilic, and Flexible Inorganic‐Polymer Protective Layer by Separator Engineering Enables Dendrite‐Free Lithium Metal Batteries with LiNi_0.8Mn_0.1Co_0.1O₂ Cathode

Tan

Sun

Wei

et al. 2021

Small

120

View full text Add to dashboard Cite

As a promising candidate for the high energy density cells, the practical application of lithium-metal batteries (LMBs) is still extremely hindered by the uncontrolled growth of lithium (Li) dendrites. Herein, a facile strategy is developed that enables dendrite-free Li deposition by coating highlylithiophilic amorphous SiO microparticles combined with high-binding polyacrylate acid (SiO@PAA) on polyethylene separators. A lithiated SiO and PAA (lithiated-SiO/PAA) protective layer with synergistic flexible and robust features is formed on the Li metal anode via the in situ reaction to offer outstanding interfacial stability during long-term cycles. By suppressing the formation of dead Li and random Li deposition, reducing the side reaction, and buffering the volume changes during the lithium deposition and dissolution, such a protective layer realizes a dendrite-free morphology of Li metal anode. Furthermore, sufficient ionic conductivity, uniform lithiumion flux, and interface adaptability is guaranteed by the lithiated-SiO and Li polyacrylate acid. As a result, Li metal anodes display significantly enhanced cycling stability and coulombic efficiency in Li||Li and Cu||Li cells. When the composite separator is applied in a full cell with a carbonate-based electrolyte and LiNi 0.8 Mn 0.1 Co 0.1 O 2 cathode, it exhibits three times longer lifespan than control cell at current density of 5 C. dominate the major energy-storage markets over the past decades. Unfortunately, the highest energy density that the conventional LIBs can output is far from the demands of emerging high-energy applications, such as long-range electric vehicles and autonomous aircrafts. [1-4] Accordingly, lithium metal batteries (LMBs) are deemed to be a promising candidate for the nextgeneration batteries on account of the excellent advantages of Lithium (Li) metal anode accompanied with the highest theoretical specific capacity (3860 mAh g −1) and the lowest redox potential (−3.04 V versus the standard hydrogen electrode). [5,6] However, the practical application of Li metal anodes has been greatly limited, mainly because of the uncontrolled growth of Li dendrites in the charge/discharge process, bring about capacity fade and even serious security issues. [7,8] During cell operation, the objective micro-roughness of Li electrode surfaces causes an inhomogeneous distribution of Li ions flux and followed by the formation of Li dendrite. The resulting Li dendrite gradually growth during plating/stripping processes, tends to impale the separator leading to an internal short-circuit sometimes with fire or explosion. [9] The dendritic Li easily snaps off and generates the inactive Li so-called "dead Li", also leads to capacity attenuation of the batteries. [10] Moreover, Li metal can react spontaneously with any liquid electrolyte, which results in a heterogeneous and fragile solid electrolyte interphase (SEI) layer instantly forming on the surface of Li metal anode. [11] Unfortunately, during Li plating, the brittle SEI is easily destroyed by stress...

show abstract

New perspective to understand the effect of electrochemical prelithiation behaviors on silicon monoxide

Abstract: A different evaluation strategy is introduced to understand the effect of electrochemical prelithiation behaviours through a facile electrochemical data analysis.

Cited by 57 publications

References 28 publications

Prelithiation/Presodiation Techniques for Advanced Electrochemical Energy Storage Systems: Concepts, Applications, and Perspectives

Prelithiation/Presodiation Techniques for Advanced Electrochemical Energy Storage Systems: Concepts, Applications, and Perspectives

Achieving Desirable Initial Coulombic Efficiencies and Full Capacity Utilization of Li‐Ion Batteries by Chemical Prelithiation of Graphite Anode

Design of Robust, Lithiophilic, and Flexible Inorganic‐Polymer Protective Layer by Separator Engineering Enables Dendrite‐Free Lithium Metal Batteries with LiNi_0.8Mn_0.1Co_0.1O₂ Cathode

Contact Info

Product

Resources

About

New perspective to understand the effect of electrochemical prelithiation behaviors on silicon monoxide

Abstract: A different evaluation strategy is introduced to understand the effect of electrochemical prelithiation behaviours through a facile electrochemical data analysis.

Cited by 57 publications

References 28 publications

Prelithiation/Presodiation Techniques for Advanced Electrochemical Energy Storage Systems: Concepts, Applications, and Perspectives

Prelithiation/Presodiation Techniques for Advanced Electrochemical Energy Storage Systems: Concepts, Applications, and Perspectives

Achieving Desirable Initial Coulombic Efficiencies and Full Capacity Utilization of Li‐Ion Batteries by Chemical Prelithiation of Graphite Anode

Design of Robust, Lithiophilic, and Flexible Inorganic‐Polymer Protective Layer by Separator Engineering Enables Dendrite‐Free Lithium Metal Batteries with LiNi0.8Mn0.1Co0.1O2 Cathode

Contact Info

Product

Resources

About

Design of Robust, Lithiophilic, and Flexible Inorganic‐Polymer Protective Layer by Separator Engineering Enables Dendrite‐Free Lithium Metal Batteries with LiNi_0.8Mn_0.1Co_0.1O₂ Cathode