Synthesis of thin-film electrodes based on LiPON and LiPON-LLTO-LiPON

Belous, A. G.; V’yunov, O. I.; Kovalenko, L. L.; Bohnké, O.; Bohnké, Claude

doi:10.1134/s1023193514060020

Cited by 16 publications

(15 citation statements)

References 18 publications

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“…LiPON has a high chemical resistivity allowing for longer contact time with lithium metal. ,,,,,,,,,,,,,,,,,− In our research, it is found that 30 nm of LiPON is the critical thickness for protecting a solid polymer electrolyte consisting of poly(propylene carbonate) and poly(ethylene oxide) in a bilayered electrolyte system . It has also been shown that LiPON acts as a protective layer when sputtered onto a La 2/3–x Li 3 x TiO 3 (LLTO) support, enhancing the chemical stability against lithium metal …”

Section: Applicationsmentioning

confidence: 74%

“…The stability of LiPON films with lithium has remained a hot point for discussion and research as inconsistent results are reported by different groups. The general consensus is that LiPON does not react with lithium metal, and the reported values of electrochemical stability window for LiPON are up to 5.5 V (vs Li/Li+). ,,,,,,,,,− Recently, however, an in situ XPS study on the stability of the LiPON/lithium interfaces reveals that there are reactions that occur between LiPON and lithium metal. Results of this study show that exposure to metallic lithium breaks down the LiPON into smaller species such as Li 3 PO 4 , Li 3 P, Li 3 N, and Li 2 O, leading to the disruption of the network structure of the LiPON glass .…”

Section: Electrochemical Degradation Of Liponmentioning

confidence: 82%

“…Versatility is one of the many appealing aspects that LiPON has to offer. LiPON has been successfully applied as a protective layer to solid electrolytes and electrode material in lithium batteries. ,, Currently, LiPON is used predominantly in thin film batteries and has been shown to be an effective protective layer preventing dendrite penetration of the electrolyte when deposited on lithium metal. , Not only can LiPON offer a protective layer between a polymer electrolyte and lithium metal in a bilayered configuration, the structural integrity of the LiPON layer can be improved. For instance, when LiPON is deposited onto a nonrigid polymer substrate, mechanical stresses are relieved and the bilayer structure is preserved .…”

Section: Applicationsmentioning

confidence: 99%

“…66 It has also been shown that LiPON acts as a protective layer when sputtered onto a La 2/3−x Li 3x TiO 3 (LLTO) support, enhancing the chemical stability against lithium metal. 62 In lithium ion batteries, lithium loss to the graphite containing electrode is one of the major causes of aging losses. 77 By engineering a surface to include an artificial solid electrolyte interface(SEI), the life of the cell is shown to be improved.…”

Section: Applicationsmentioning

confidence: 99%

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A Review on Lithium Phosphorus Oxynitride

2021

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Lithium phosphorus oxynitride (LiPON) has paved the way for thin film solid-state battery technology development and has shown application in a large range of fields since its first reported synthesis in 1993. The term LiPON describes the family of materials with the general formula of Li x PO y N z offering a great range of stoichiometries with varying properties. Understanding how the properties of LiPON are affected by different preparation methods is important for tuning this material to fit the required application. It is also useful to understand the LiPON relation between the amorphous structure and ionic conductivity, as well as the electrochemically degradation in contact with electrode materials. This review summarizes various methods of synthesizing LiPON and evaluates them on the basis of multiple properties of the resulting material. Structure−property relationships are identified to categorize the various LiPON stoichiometries that have been synthesized. Possible lithium ion conduction pathways and electrochemical degradation mechanism in LiPON are discussed. Representative applications of LiPON films are also introduced. At the end of this review, insights for future research into LiPON materials are provided.

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Section: Applicationsmentioning

confidence: 74%

Section: Electrochemical Degradation Of Liponmentioning

confidence: 82%

Section: Applicationsmentioning

confidence: 99%

Section: Applicationsmentioning

confidence: 99%

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A Review on Lithium Phosphorus Oxynitride

2021

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“…The partial pressure of the N 2 gas plays an important role since it determines the amount N that can be incorporated in the LiPON, leading to variation of the impedance. [ 49 , 50 ] Figure 5e shows the change in impedance with the partial pressure of N 2 gas. [ 49 ] The impedance value of the LiPON thin film decreases with an increase in N 2 partial pressure.…”

Section: Solid‐state Electrolytesmentioning

confidence: 99%

All‐Solid‐State Thin Film μ‐Batteries for Microelectronics

Dai

et al. 2021

Advanced Science

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Continuous advances in microelectronics and micro/nanoelectromechanical systems enable the use of microsized energy storage devices, namely solid-state thin-film -batteries. Different from the current button batteries, the -battery can directly be integrated on microchips forming a very compact "system on chip" since no liquid electrolyte is used in the -battery. The all-solid-state battery (ASSB) that uses solid-state electrolyte has become a research trend because of its high safety and increased capacity. The solid-state thin-film -battery belongs to the family of ASSB but in a small format. However, a lot of scientific and technical issues and challenges are to be resolved before its real application, including the ionic conductivity of the solid-state electrolyte, the electrical conductivity of the electrode, integration technologies, electrochemical-induced strain, etc. To achieve this goal, understanding the processing of thin films and fundamentals of ion transfer in the solid-state electrolytes and hence in the -batteries becomes utmost important. This review therefore focuses on solid-state ionics and provides inside of ion transportation in the solid state and effects of chemistry on electrochemical behaviors and proposes key technology for processing of the -battery.

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