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.

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.

A functional SrF2 coated separator enabling a robust and dendrite-free solid electrolyte interphase on a lithium metal anode

2019 ◽  
Vol 7 (37) ◽  
pp. 21349-21361 ◽  
Author(s):  
Xing Li ◽  
Yang Liu ◽  
Yong Pan ◽  
Mingshan Wang ◽  
Junchen Chen ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Lithium Metal ◽  
Lithium Anode ◽  
Metal Anode ◽  
Lithium Metal Anode ◽  
Coated Separator

An SrF2 microsphere layer on a separator could be involved in SEI formation and result in a dendrite free SEI on a lithium anode.

Theoretical formulation of Li3a+bNaXb (X = halogen) as a potential artificial solid electrolyte interphase (ASEI) to protect the Li anode

2020 ◽  
Vol 22 (23) ◽  
pp. 12918-12928
Author(s):  
Junwu Sang ◽  
Yuran Yu ◽  
Zhuo Wang ◽  
Guosheng Shao
Keyword(s):  
Energy Density ◽  
Solid Electrolyte ◽  
Solid Electrolytes ◽  
Solid Electrolyte Interphase ◽  
High Energy ◽  
High Energy Density ◽  
Li Ion Batteries ◽  
Theoretical Formulation ◽  
Lithium Anode ◽  
Li Ion

A major problem against the realization of high energy density and safe solid Li-ion batteries lies in detrimental reactions at the interface between the lithium anode and the solid electrolytes.

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.

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