Investigation of interfacial resistance between LiCoO2 cathode and LiPON electrolyte in the thin film battery

Jeong, Eun-Kyung; Hong, Cheng; Tak, Yongsug; Nam, Sang Cheol; Cho, Sungbaek

doi:10.1016/j.jpowsour.2006.04.042

Cited by 42 publications

(20 citation statements)

References 10 publications

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“…[156] In another method, Li 3 BO 3 was used as a glue to increase the effective contact area between LLZO and LCO due to the low melting point of Li 3 BO 3 (≈700 °C),[139,156,187] In a thin‐film battery system, the LCO/LiPON interface was improved by controlling the deposition temperature . To further reduce the high resistance at the LCO/LiPON interface, a thin Al 2 O 3 layer was deposited onto LCO before the LiPON deposition . A solid solution, LiCo 1− y Al y O 2 was formed on the interface, which was believed as the mechanism for the enhanced electrochemical performance.…”

Section: Challenges and Solutionsmentioning

confidence: 99%

Promises, Challenges, and Recent Progress of Inorganic Solid‐State Electrolytes for All‐Solid‐State Lithium Batteries

et al. 2018

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All-solid-state lithium batteries (ASSLBs) have the potential to revolutionize battery systems for electric vehicles due to their benefits in safety, energy density, packaging, and operable temperature range. As the key component in ASSLBs, inorganic lithium-ion-based solid-state electrolytes (SSEs) have attracted great interest, and advances in SSEs are vital to deliver the promise of ASSLBs. Herein, a survey of emerging SSEs is presented, and ion-transport mechanisms are briefly discussed. Techniques for increasing the ionic conductivity of SSEs, including substitution and mechanical strain treatment, are highlighted. Recent advances in various classes of SSEs enabled by different preparation methods are described. Then, the issues of chemical stabilities, electrochemical compatibility, and the interfaces between electrodes and SSEs are focused on. A variety of research addressing these issues is outlined accordingly. Given their importance for next-generation battery systems and transportation style, a perspective on the current challenges and opportunities is provided, and suggestions for future research directions for SSEs and ASSLBs are suggested.

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Section: Challenges and Solutionsmentioning

confidence: 99%

Promises, Challenges, and Recent Progress of Inorganic Solid‐State Electrolytes for All‐Solid‐State Lithium Batteries

et al. 2018

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“…Various attempts have been made to improve the interfacial contact by reducing the electrode particle size, uniaxial or dynamic pressing, molten salt, screen printing, lattice matching, and one‐step spark plasma sintering methods . However, only limited success in enhancing the power density has been achieved because a new interfacial phase layer with a high resistance might also be generated from the unwanted chemical reactions and elemental interdiffusions between the different electrode and electrolyte materials during either synthesis or the charge/discharge cycles. Even worse, the intimate initial contact achieved in the fabrication and/or sintering process may even accelerate the unwanted chemical reactions and elemental interdiffusions .…”

Section: Xps Binding Energies Of Low Be Peak (Elow) and High Be Pmentioning

confidence: 99%

A Battery Made from a Single Material

et al. 2015

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A single-material battery is prepared using Li10GeP2S12 as the electrolyte, anode, and cathode, based on the Li-S and Ge-S components in Li10GeP2S12 acting as the active centers for its cathode and anode performance, respectively. The single-Li10GeP2S12 battery exhibits a remarkably low interfacial resistance due to the improvement of interfacial contact and interactions, and the suppression of interfacial strain/stress.

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“…In addition, extremely thin layers of additional phases, e. g., Al 2 O 3 or ZrO 2 , have been proven to stabilize the cathode from degradation in batteries using liquid electrolytes [16,17], as well as solid-state electrolytes [18]. We expect that also thin layers of solid ion conductors can be used as stabilizing artificial SEI layers for large-scale batteries using liquid electrolytes.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the solid-state electrolyte/cathode LiPON/LiCoO2 interface by photoelectron spectroscopy

Jacke

Song

Cherkashinin

et al. 2010

Ionics

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The electronic structure of a solid electrolyte/ solid electrode interface (SESEI) of an all-solid-state thin film battery was investigated. The thin film battery consisted of a LiPON solid electrolyte and a LiCoO 2 cathode. The lithium phosphorus oxynitride (LiPON) electrolyte was RF sputtered in a step-by-step procedure onto the cathode and investigated by photoelectron X-rayinduced spectroscopy after each deposition step. An intermediate layer was found-composed of some new species-that differs in its chemical composition from the cathode as well as the LiPON solid electrolyte material and changes with growing layer thickness. In contrast, the electronic structure of the underlying cathode material remained predominantly unchanged.

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Investigation of interfacial resistance between LiCoO2 cathode and LiPON electrolyte in the thin film battery

Cited by 42 publications

References 10 publications

Promises, Challenges, and Recent Progress of Inorganic Solid‐State Electrolytes for All‐Solid‐State Lithium Batteries

Promises, Challenges, and Recent Progress of Inorganic Solid‐State Electrolytes for All‐Solid‐State Lithium Batteries

A Battery Made from a Single Material

Investigation of the solid-state electrolyte/cathode LiPON/LiCoO2 interface by photoelectron spectroscopy

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