Hybrid Polymer/Garnet Electrolyte with a Small Interfacial Resistance for Lithium‐Ion Batteries

Li, Yutao; Xu, Biyi; Xu, Henghui; Duan, Huanan; Lu, Xiaofeng; Xin, Sen; Zhou, Weidong; Xue, Leigang; Fu, Gengtao; Manthiram, Arumugam; Goodenough, John B.

doi:10.1002/anie.201608924

Cited by 476 publications

(324 citation statements)

References 34 publications

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“…Li ions migrate between cathodes and anodes through electrolytes and separators repeatedly to experience the electrochemical reactions in rechargeable batteries ( 24 , 25 ). Because of the ionically insulated nature of the commercial separator skeleton, the electrolytes in the separators pave the way for Li-ion transport between cathodes and anodes.…”

Section: Introductionmentioning

confidence: 99%

An ion redistributor for dendrite-free lithium metal anodes

et al. 2018

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Section: Introductionmentioning

confidence: 99%

An ion redistributor for dendrite-free lithium metal anodes

et al. 2018

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“…Formation of impurity phases such as LiOH and Li 2 CO 3 , and weak physical adhesion of two phases have been considered as the main origin of high interfacial resistance. 9,10 Park et al have shown that cubic garnet structure changes to tetragonal phase with lower ionic conductivity, this phenomenon intensified when the LiCoO 2 was directly formed on the LLZO substrate. They have also shown that annealing time intensifies reaction between these * Electrochemical Society Student Member.…”

mentioning

confidence: 99%

X-ray Photoelectron Spectroscopy and AC Impedance Spectroscopy Studies of Li-La-Zr-O Solid Electrolyte Thin Film/LiCoO₂Cathode Interface for All-Solid-State Li Batteries

Zarabian

Bartolini

Pereira‐Almao

et al. 2017

J. Electrochem. Soc.

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Li ion half-cell electrode-based configuration was prepared by spin-coating using precursor of Li-stuffed garnet with intended composition of Li 7 La 3 Zr 2 O 12 on LiCoO 2 . The main goal of this study was lowering the heat-treatment to 400 • C, which is well below the chemical reaction temperature of these phases. Liquid precursor of the nominal compound was prepared and spin-coated on the top surface of MgO(100) and LiCoO 2 pellets until the appropriate thickness was obtained. Electrochemical impedance spectroscopy (EIS) was used to understand the resistance and capacitance behavior of the electrolyte and electrolyte-electrode interface. The ac impedance of half-cell shows semicircles, corresponding to the response from bulk electrolyte, second phase and interface. The interfacial region between LiCoO 2 and Li-La-Zr-O film was deeply studied with X-ray photoelectron spectroscopy (XPS) depth profile analysis. XPS results show that Co diffuses from the substrate toward the solid electrolyte; Li depletes in the interface region, and moves to the top surface, which changes the electronic structure of Co to a multiplicity of reduced forms. The present study shows that even at 400 • C, the Li-stuffed garnet precursor and LiCoO 2 cathode seem to form reaction products, suggesting that is critical for applications to develop protecting layers between the cathodes and Li-stuffed garnet electrolytes. Switching from an organic polymer-based Li ion electrolyte to a ceramic Li ion electrolyte in conventional Li ion batteries is expected to allow for higher energy density, improve safety and prolong lifetime. These, all-solid-state Li batteries can also be miniaturized, which will streamline the packing design and save cargo space. A solid electrolyte has to have several criteria to be able to use in the Li ion batteries such as high ionic conductivity at room temperature, high Li + ion transference number, chemical stability versus the Li cathodes and the Li anodes during preparation and battery operation, sustainability and economic feasibility.1-3 Although all-solid-state batteries offer lots of advantages over conventional liquid and polymer based batteries, the widespread applications of currently developed solid-state (ceramic) Li ion electrolytes have been postponed by low conductivity and or high reactivity with the electrodes which impede reaching high power density required for electric vehicles. 4,5 Li-stuffed garnet is a promising type of solid electrolyte offering an advantage of very high electrochemical stability window (∼6 V versus Li/Li + for Zr and Ta-based garnets), which opens up the possibility of using alternative cathodes and anodes for high voltage applications. It solely allows Li ions to move, and reduces the chance of capacity fading by unwanted reactions and or self-discharging. It is benign and resistant to Li dendrite electroplating.6-8 Interfacial resistance of Li stuffed garnet with Li metal and LiCoO 2 has been the scope of some recent studies targeting developing high performance battery f...

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“…The developed polymer-based SSEs demonstrated high ionic conductivity and good accommodation with Li metal anode which breaks the bottleneck that allow the polymer-based ASS Li-S batteries operating at ambient temperature. Many groups have attempted to develop hybrid electrolytes with the combination of polymer and oxide-based electrolytes, which demonstrated enhanced stability and conductivity [411][412][413][414][415]. Despite the excellent electrochemical performance, the loading of these sulfur and Li 2 S-based cathodes are unsatisfactory and unsuitable for commercial application.…”

Section: Polymer Electrolyte-based Li-s Batteriesmentioning

confidence: 99%

Structural Design of Lithium–Sulfur Batteries: From Fundamental Research to Practical Application

Yang

Adair

et al. 2018

Electrochem. Energ. Rev.

327

206

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Lithium-sulfur (Li-S) batteries have been considered as one of the most promising energy storage devices that have the potential to deliver energy densities that supersede that of state-of-the-art lithium ion batteries. Due to their high theoretical energy density and cost-effectiveness, Li-S batteries have received great attention and have made great progress in the last few years. However, the insurmountable gap between fundamental research and practical application is still a major stumbling block that has hindered the commercialization of Li-S batteries. This review provides insight from an engineering point of view to discuss the reasonable structural design and parameters for the application of Li-S batteries. Firstly, a systematic analysis of various parameters (sulfur loading, electrolyte/sulfur (E/S) ratio, discharge capacity, discharge voltage, Li excess percentage, sulfur content, etc.) that influence the gravimetric energy density, volumetric energy density and cost is investigated. Through comparing and analyzing the statistical information collected from recent Li-S publications to find the shortcomings of Li-S technology, we supply potential strategies aimed at addressing the major issues that are still needed to be overcome. Finally, potential future directions and prospects in the engineering of Li-S batteries are discussed.

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Hybrid Polymer/Garnet Electrolyte with a Small Interfacial Resistance for Lithium‐Ion Batteries

Cited by 476 publications

References 34 publications

An ion redistributor for dendrite-free lithium metal anodes

An ion redistributor for dendrite-free lithium metal anodes

X-ray Photoelectron Spectroscopy and AC Impedance Spectroscopy Studies of Li-La-Zr-O Solid Electrolyte Thin Film/LiCoO₂Cathode Interface for All-Solid-State Li Batteries

Structural Design of Lithium–Sulfur Batteries: From Fundamental Research to Practical Application

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Hybrid Polymer/Garnet Electrolyte with a Small Interfacial Resistance for Lithium‐Ion Batteries

Cited by 476 publications

References 34 publications

An ion redistributor for dendrite-free lithium metal anodes

An ion redistributor for dendrite-free lithium metal anodes

X-ray Photoelectron Spectroscopy and AC Impedance Spectroscopy Studies of Li-La-Zr-O Solid Electrolyte Thin Film/LiCoO2Cathode Interface for All-Solid-State Li Batteries

Structural Design of Lithium–Sulfur Batteries: From Fundamental Research to Practical Application

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X-ray Photoelectron Spectroscopy and AC Impedance Spectroscopy Studies of Li-La-Zr-O Solid Electrolyte Thin Film/LiCoO₂Cathode Interface for All-Solid-State Li Batteries