scholarly journals Surface-Functionalized Separator for Stable and Reliable Lithium Metal Batteries: A Review

Nanomaterials ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 2275
Author(s):  
Patrick Joohyun Kim
Keyword(s):  
Coulombic Efficiency ◽  
Lithium Ion ◽  
Rechargeable Batteries ◽  
Lithium Metal ◽  
Standard Potential ◽  
Coating Materials ◽  
General Guideline ◽  
Lithium Metal Batteries ◽  
High Theoretical Capacity ◽  
Significant Attention

Metallic Li has caught the attention of researchers studying future anodes for next-generation batteries, owing to its attractive properties: high theoretical capacity, highly negative standard potential, and very low density. However, inevitable issues, such as inhomogeneous Li deposition/dissolution and poor Coulombic efficiency, hinder the pragmatic use of Li anodes for commercial rechargeable batteries. As one of viable strategies, the surface functionalization of polymer separators has recently drawn significant attention from industries and academics to tackle the inherent issues of metallic Li anodes. In this article, separator-coating materials are classified into five or six categories to give a general guideline for fabricating functional separators compatible with post-lithium-ion batteries. The overall research trends and outlook for surface-functionalized separators are reviewed.

scholarly journals A Review of Functional Separators for Lithium Metal Battery Applications

Materials ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 4625
Author(s):  
Jooyoung Jang ◽  
Jiwoong Oh ◽  
Hyebin Jeong ◽  
Woosuk Kang ◽  
Changshin Jo
Keyword(s):  
Storage Systems ◽  
Coulombic Efficiency ◽  
High Reactivity ◽  
Lithium Metal ◽  
Future Prospects ◽  
Safety Hazards ◽  
Lithium Metal Batteries ◽  
Reaction Potential ◽  
High Theoretical Capacity ◽  
Lithium Metal Battery

Lithium metal batteries are considered “rough diamonds” in electrochemical energy storage systems. Li-metal anodes have the versatile advantages of high theoretical capacity, low density, and low reaction potential, making them feasible candidates for next-generation battery applications. However, unsolved problems, such as dendritic growths, high reactivity of Li-metal, low Coulombic efficiency, and safety hazards, still exist and hamper the improvement of cell performance and reliability. The use of functional separators is one of the technologies that can contribute to solving these problems. Recently, functional separators have been actively studied and developed. In this paper, we summarize trends in the research on separators and predict future prospects.

scholarly journals Decoupling the origins of irreversible coulombic efficiency in anode-free lithium metal batteries

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Chen-Jui Huang ◽  
Balamurugan Thirumalraj ◽  
Hsien-Chu Tao ◽  
Kassie Nigus Shitaw ◽  
Hogiartha Sutiono ◽  
...  
Keyword(s):  
Coulombic Efficiency ◽  
Rate Capability ◽  
Reversible Capacity ◽  
Data Interpretation ◽  
Lithium Metal ◽  
Safety Hazards ◽  
Practical Applications ◽  
Lithium Metal Batteries ◽  
Metallic Lithium ◽  
Other Information

AbstractAnode-free lithium metal batteries are the most promising candidate to outperform lithium metal batteries due to higher energy density and reduced safety hazards with the absence of metallic lithium anode during initial cell fabrication. In general, researchers report capacity retention, reversible capacity, or rate capability of the cells to study the electrochemical performance of anode-free lithium metal batteries. However, evaluating the behavior of batteries from limited aspects may easily overlook other information hidden deep inside the meretricious results or even lead to misguided data interpretation. In this work, we present an integrated protocol combining different types of cell configuration to determine various sources of irreversible coulombic efficiency in anode-free lithium metal cells. The decrypted information from the protocol provides an insightful understanding of the behaviors of LMBs and AFLMBs, which promotes their development for practical applications.

scholarly journals The Importance of Interphases in Energy Storage Devices: Methods and Strategies to Investigate and Control Interfacial Processes

Physchem ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 26-44
Author(s):  
Chiara Ferrara ◽  
Riccardo Ruffo ◽  
Piercarlo Mustarelli
Keyword(s):  
Energy Storage ◽  
Solid Electrolyte Interphase ◽  
Lithium Ion ◽  
Lithium Metal ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Lithium Metal Batteries ◽  
And Control ◽  
Near Future

Extended interphases are playing an increasingly important role in electrochemical energy storage devices and, in particular, in lithium-ion and lithium metal batteries. With this in mind we initially address the differences between the concepts of interface and interphase. After that, we discuss in detail the mechanisms of solid electrolyte interphase (SEI) formation in Li-ion batteries. Then, we analyze the methods for interphase characterization, with emphasis put on in-situ and operando approaches. Finally, we look at the near future by addressing the issues underlying the lithium metal/electrolyte interface, and the emerging role played by the cathode electrolyte interphase when high voltage materials are employed.

PROPERTIES OF ALL-SOLID-STATE LITHIUM-ION RECHARGEABLE BATTERIES DEPOSITED BY RF MAGNETRON SPUTTERING

2013 ◽  
Vol 27 (22) ◽  
pp. 1350156 ◽  
Author(s):  
R. J. ZHU ◽  
Y. REN ◽  
L. Q. GENG ◽  
T. CHEN ◽  
L. X. LI ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Solid State ◽  
Magnetron Sputtering ◽  
Coulombic Efficiency ◽  
Electronic Conductivity ◽  
Lithium Ion ◽  
Rf Magnetron Sputtering ◽  
Rechargeable Batteries ◽  
Voltage Range

Amorphous V 2 O 5, LiPON and Li 2 Mn 2 O 4 thin films were fabricated by RF magnetron sputtering methods and the morphology of thin films were characterized by scanning electron microscopy. Then with these three materials deposited as the anode, solid electrolyte, cathode, and vanadium as current collector, a rocking-chair type of all-solid-state thin-film-type Lithium-ion rechargeable battery was prepared by using the same sputtering parameters on stainless steel substrates. Electrochemical studies show that the thin film battery has a good charge–discharge characteristic in the voltage range of 0.3–3.5 V, and after 30 cycles the cell performance turned to become stabilized with the charge capacity of 9 μAh/cm2, and capacity loss of single-cycle of about 0.2%. At the same time, due to electronic conductivity of the electrolyte film, self-discharge may exist, resulting in approximately 96.6% Coulombic efficiency.

scholarly journals Perovskite Solid-State Electrolytes for Lithium Metal Batteries

Batteries ◽  
2021 ◽  
Vol 7 (4) ◽  
pp. 75
Author(s):  
Shuo Yan ◽  
Chae-Ho Yim ◽  
Vladimir Pankov ◽  
Mackenzie Bauer ◽  
Elena Baranova ◽  
...  
Keyword(s):  
Solid State ◽  
Organic Liquid ◽  
Lithium Ion ◽  
Polymeric Materials ◽  
Inorganic Materials ◽  
Lithium Metal ◽  
Structure Property ◽  
Lithium Metal Batteries ◽  
Electrochemical Window ◽  
Solid State Electrolytes

Solid-state lithium metal batteries (LMBs) have become increasingly important in recent years due to their potential to offer higher energy density and enhanced safety compared to conventional liquid electrolyte-based lithium-ion batteries (LIBs). However, they require highly functional solid-state electrolytes (SSEs) and, therefore, many inorganic materials such as oxides of perovskite La2/3−xLi3xTiO3 (LLTO) and garnets La3Li7Zr2O12 (LLZO), sulfides Li10GeP2S12 (LGPS), and phosphates Li1+xAlxTi2−x(PO4)3x (LATP) are under investigation. Among these oxide materials, LLTO exhibits superior safety, wider electrochemical window (8 V vs. Li/Li+), and higher bulk conductivity values reaching in excess of 10−3 S cm−1 at ambient temperature, which is close to organic liquid-state electrolytes presently used in LIBs. However, recent studies focus primarily on composite or hybrid electrolytes that mix LLTO with organic polymeric materials. There are scarce studies of pure (100%) LLTO electrolytes in solid-state LMBs and there is a need to shed more light on this type of electrolyte and its potential for LMBs. Therefore, in our review, we first elaborated on the structure/property relationship between compositions of perovskites and their ionic conductivities. We then summarized current issues and some successful attempts for the fabrication of pure LLTO electrolytes. Their electrochemical and battery performances were also presented. We focused on tape casting as an effective method to prepare pure LLTO thin films that are compatible and can be easily integrated into existing roll-to-roll battery manufacturing processes. This review intends to shed some light on the design and manufacturing of LLTO for all-ceramic electrolytes towards safer and higher power density solid-state LMBs.

scholarly journals Lithium-Ion-Conducting Ceramics-Coated Separator for Stable Operation of Lithium Metal-Based Rechargeable Batteries

Materials ◽  
2022 ◽  
Vol 15 (1) ◽  
pp. 322
Author(s):  
Ryo Shomura ◽  
Ryota Tamate ◽  
Shoichi Matsuda
Keyword(s):  
Negative Electrode ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Rechargeable Batteries ◽  
Stable Operation ◽  
Lithium Metal ◽  
Interfacial Resistance ◽  
Metal Anode ◽  
Ion Conducting ◽  
Coated Separator

Lithium metal anode is regarded as the ultimate negative electrode material due to its high theoretical capacity and low electrochemical potential. However, the significantly high reactivity of Li metal limits the practical application of Li metal batteries. To improve the stability of the interface between Li metal and an electrolyte, a facile and scalable blade coating method was used to cover the commercial polyethylene membrane separator with an inorganic/organic composite solid electrolyte layer containing lithium-ion-conducting ceramic fillers. The coated separator suppressed the interfacial resistance between the Li metal and the electrolyte and consequently prolonged the cycling stability of deposition/dissolution processes in Li/Li symmetric cells. Furthermore, the effect of the coating layer on the discharge/charge cycling performance of lithium-oxygen batteries was investigated.

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