scholarly journals All-Solid-State Lithium Battery Working without an Additional Separator in a Polymeric Electrolyte

Polymers ◽  
2018 ◽  
Vol 10 (12) ◽  
pp. 1364 ◽  
Author(s):  
Seonggyu Cho ◽  
Shinho Kim ◽  
Wonho Kim ◽  
Seok Kim ◽  
Sungsook Ahn
Keyword(s):  
Solid State ◽  
Solid Electrolyte ◽  
Technology Development ◽  
System Development ◽  
New Technology ◽  
Internal Resistance ◽  
Liquid Electrolyte ◽  
Ion Conductivity ◽  
Li Battery ◽  
Li Ion

Considering the safety issues of Li ion batteries, an all-solid-state polymer electrolyte has been one of the promising solutions. Achieving a Li ion conductivity of a solid-state electrolyte comparable to that of a liquid electrolyte (>1 mS/cm) is particularly challenging. Even with characteristic ion conductivity, employment of a polyethylene oxide (PEO) solid electrolyte has not been sufficient due to high crystallinity. In this study, hybrid solid electrolyte (HSE) systems have been designed with Li1.3Al0.3Ti0.7(PO4)3 (LATP), PEO and lithium bis(trifluoromethanesulfonyl)imide (LiTFSI). A hybrid solid cathode (HSC) is also designed using LATP, PEO and lithium cobalt oxide (LiCoO2, LCO)—lithium manganese oxide (LiMn2O4, LMO). The designed HSE system has 2.0 × 10−4 S/cm (23 °C) and 1.6 × 10−3 S/cm (55 °C) with a 6.0 V electrochemical stability without an additional separator membrane introduction. In these systems, succinonitrile (SN) has been incorporated as a plasticizer to reduce crystallinity of PEO for practical all-solid Li battery system development. The designed HSC/HSE/Li metal cell in this study operates without any leakage and short-circuits even under the broken cell condition. The designed HSC/HSE/Li metal cell in this study displays an initial charge capacity of 82/62 mAh/g (23 °C) and 123.4/102.7 mAh/g (55 °C). The developed system overcomes typical disadvantages of internal resistance induced by Ti ion reduction. This study contributes to a new technology development of all-solid-state Li battery for commercial product design.

scholarly journals A New All-Solid-State Lithium-Ion Battery Working without a Separator in an Electrolyte

2018 ◽  
Author(s):  
Seonggyu Cho ◽  
Shinho Kim ◽  
Wonho Kim ◽  
Seok Kim ◽  
Sungsook Ahn
Keyword(s):  
Solid State ◽  
Ionic Conductivity ◽  
Solid Electrolyte ◽  
System Development ◽  
Lithium Ion ◽  
Internal Resistance ◽  
Li Ion Battery ◽  
Battery Cell ◽  
Metal Anode ◽  
Li Ion

Considering the safety issues of Li ion batteries, all-solid-state polymer electrolyte has been one of the promising solutions. In this point, achieving a Li ion conductivity in the solid state electrolytes comparable to liquid electrolytes (>1 mS/cm) is particularly challenging. Employment of polyethylene oxide (PEO) solid electrolyte has not been not enough in this point due to high crystallinity. In this study, hybrid solid electrolyte (HSE) systems are designed with Li1.3Al0.3Ti0.7(PO4)3(LATP), PEO and Lithium hexafluorophosphate (LiPF6) or Lithium bis(trifluoromethanesulfonyl)imide (LiTFSI). Hybrid solid cathode (HSC) is also designed using LATP, PEO and lithium cobalt oxide (LiCoO2, LCO)—lithium manganese oxide (LiMn2O4, LMO). The designed HSE system displays 3.0 × 10−4 S/cm (55 ℃) and 1.8 × 10−3 S/cm (23 ℃) with an electrochemical stability as of 6.0 V without any separation layer introduction. Li metal (anode)/HSE/HSC cell in this study displays initial charge capacity as of 123.4/102.7 mAh/g (55 ℃) and 73/57 mAh/g (25 °C). To these systems, Succinonitrile (SN) has been incorporated as a plasticizer for practical secondary Li ion battery system development to enhance ionic conductivity. The incorporated SN effectively increases the ionic conductivity without any leakage and short-circuits even under broken cell condition. The developed system also overcomes the typical disadvantages of internal resistance induced by Ti ion reduction. In this study, optimized ionic conductivity and low internal resistance inside the Li ion battery cell have been obtained, which suggests a new possibility in the secondary Li ion battery development.

scholarly journals Mastering the interface for advanced all-solid-state lithium rechargeable batteries

2016 ◽  
Vol 113 (47) ◽  
pp. 13313-13317 ◽  
Author(s):  
Yutao Li ◽  
Weidong Zhou ◽  
Xi Chen ◽  
Xujie Lü ◽  
Zhiming Cui ◽  
...  
Keyword(s):  
Solid State ◽  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Rechargeable Batteries ◽  
Ion Conductivity ◽  
Rhombohedral Structure ◽  
Interfacial Resistance ◽  
Lithium Anode ◽  
Metal Anode ◽  
Li Ion

A solid electrolyte with a high Li-ion conductivity and a small interfacial resistance against a Li metal anode is a key component in all-solid-state Li metal batteries, but there is no ceramic oxide electrolyte available for this application except the thin-film Li-P oxynitride electrolyte; ceramic electrolytes are either easily reduced by Li metal or penetrated by Li dendrites in a short time. Here, we introduce a solid electrolyte LiZr2(PO4)3 with rhombohedral structure at room temperature that has a bulk Li-ion conductivity σLi = 2 × 10−4 S⋅cm−1 at 25 °C, a high electrochemical stability up to 5.5 V versus Li+/Li, and a small interfacial resistance for Li+ transfer. It reacts with a metallic lithium anode to form a Li+-conducting passivation layer (solid-electrolyte interphase) containing Li3P and Li8ZrO6 that is wet by the lithium anode and also wets the LiZr2(PO4)3 electrolyte. An all-solid-state Li/LiFePO4 cell with a polymer catholyte shows good cyclability and a long cycle life.

Hybrid solid electrolyte with the combination of Li7La3Zr2O12 ceramic and ionic liquid for high voltage pseudo-solid-state Li-ion batteries

2016 ◽  
Vol 4 (43) ◽  
pp. 17025-17032 ◽  
Author(s):  
Hyun Woo Kim ◽  
Palanisamy Manikandan ◽  
Young Jun Lim ◽  
Jin Hong Kim ◽  
Sang-cheol Nam ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Solid State ◽  
Solid Electrolyte ◽  
High Voltage ◽  
Liquid Electrolyte ◽  
Li Ion Batteries ◽  
Ceramic Particles ◽  
Ionic Liquid Electrolyte ◽  
Safety Aspects ◽  
Li Ion

Concerning the safety aspects of high-voltage Li-ion batteries, a pelletized hybrid solid electrolyte (HSE) was prepared by blending Li7La3Zr2O12 (LLZO) ceramic particles and an ionic liquid electrolyte (ILE) for use in pseudo-solid-state Li-ion batteries.

Porous Li-MOF as a solid-state electrolyte: exploration of lithium ion conductivity through bio-inspired ionic channels

2020 ◽  
Vol 56 (94) ◽  
pp. 14873-14876
Author(s):  
Karabi Nath ◽  
Abdulla Bin Rahaman ◽  
Rajib Moi ◽  
Kartik Maity ◽  
Kumar Biradha
Keyword(s):  
Solid State ◽  
Solid Electrolyte ◽  
Lithium Ion ◽  
Ionic Channels ◽  
Solvent Free ◽  
Ion Conductivity ◽  
Solid State Electrolyte ◽  
Li Ion ◽  
Lithium Ion Conductivity

A newly constructed porous Li-MOF was used as a solvent free solid electrolyte for Li-ion conductivity.

scholarly journals Revealing the relation between the structure, Li-ion conductivity and solid-state battery performance of the argyrodite Li6PS5Br solid electrolyte

2017 ◽  
Vol 5 (40) ◽  
pp. 21178-21188 ◽  
Author(s):  
Chuang Yu ◽  
Swapna Ganapathy ◽  
Ernst R. H. van Eck ◽  
Lambert van Eijck ◽  
Shibabrata Basak ◽  
...  
Keyword(s):  
Solid State ◽  
Solid Electrolyte ◽  
Ion Conductivity ◽  
Li Ion Battery ◽  
Solid State Battery ◽  
Li Ion

The relation between the argyrodite solid-electrolyte morphology and solid-state Li-ion battery performance is investigated, suggesting different morphologies for the electrode in combination electrolyte regions.

Li-ion conductivity and stability of hot-pressed LiTa2PO8 solid electrolyte for all-solid-state batteries

2020 ◽  
Vol 56 (3) ◽  
pp. 2425-2434
Author(s):  
Bing Huang ◽  
Biyi Xu ◽  
Jingxi Zhang ◽  
Zhihong Li ◽  
Zeya Huang ◽  
...  
Keyword(s):  
Solid State ◽  
Solid Electrolyte ◽  
Ion Conductivity ◽  
Solid State Batteries ◽  
Li Ion ◽  
All Solid State Batteries

scholarly journals Measuring and tailoring Li-ion interfacial transport in hybrid solid electrolytes

2021 ◽  
Author(s):  
Ming Liu ◽  
Ernst van Eck ◽  
Swapna Ganapathy ◽  
Marnix Wagemaker
Keyword(s):  
Solid State ◽  
Solid Electrolyte ◽  
Solid Electrolytes ◽  
Room Temperature ◽  
Ion Conductivity ◽  
Temperature Conductivity ◽  
Room Temperature Conductivity ◽  
Organic Solid ◽  
Li Ion ◽  
Inorganic And Organic

Abstract Development of commercial solid-state batteries so far been hindered by the individual limitations of inorganic and organic solid-electrolytes, motivating hybrid concepts. However, room-temperature performance of hybrid-solid electrolytes is still insufficient in terms of ion conductivity, where especially the role and impact of the inorganic and organic interphases is largely unexplored. A key challenge is to assess the Li-ion transport over the interfaces directly and relate this to the surface chemistry. Here the lithium-ion conductivity in hybrid-solid electrolytes, the interface structure and Li+ interface transport was investigated by state-of-art solid-state nuclear magnetic resonance methodologies. In a hybrid-solid Polyethylene oxide polymer – inorganic electrolyte, two representative types of ionic liquids, having a different miscibility with the polymer, were used as a benchmark to tailor the local environment at the interface between the inorganic and organic solid electrolytes species. The poor miscibility ionic liquid wets the polymer-inorganic interface and raises the local polarizability, thereby lowering the diffusional barrier, which activates the high conductivity of the inorganic solid-electrolyte, resulting in and overall room temperature conductivity of 0.25 mS/cm. A very high critical current density of 0.25 mA/cm2 versus a Li-metal anode is achieved, demonstrating improved stability, and a LiFePO4 – Li-metal full solid-state cell can be cycled at room temperature at an Coulombic efficiency of 99.9%. The local interface environment between the solid electrolyte phases in hybrid solid electrolytes, is thus demonstrated to be the bottleneck and tailoring the interface properties appears a viable route towards the design of highly conducting hybrid-solid electrolyte concepts.

Advanced High‐Voltage All‐Solid‐State Li‐Ion Batteries Enabled by a Dual‐Halogen Solid Electrolyte

2021 ◽  
pp. 2100836
Author(s):  
Shumin Zhang ◽  
Feipeng Zhao ◽  
Shuo Wang ◽  
Jianwen Liang ◽  
Jian Wang ◽  
...  
Keyword(s):  
Solid State ◽  
Solid Electrolyte ◽  
High Voltage ◽  
Li Ion Batteries ◽  
Li Ion
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