scholarly journals High transference number enabled by sulfated zirconia superacid for lithium metal batteries with carbonate electrolytes

2021 ◽  
Vol 14 (3) ◽  
pp. 1420-1428
Author(s):  
Sang-Gil Woo ◽  
Eun-Kyoung Hwang ◽  
Hee-Kook Kang ◽  
Haeun Lee ◽  
Je-Nam Lee ◽  
...  
Keyword(s):  
Sulfated Zirconia ◽  
Lithium Ion ◽  
Transference Number ◽  
Lithium Metal ◽  
Lithium Metal Batteries ◽  
Lithium Ion Transference Number ◽  
Interfacial Composition ◽  
Lithium Metal Battery

Sulfated-zirconia superacid enhances the performance of lithium-metal battery markedly by increasing the lithium-ion transference number and modifying the interfacial composition.

scholarly journals High transference number enabled by sulfated zirconia superacid for lithium metal batteries with carbonate electrolytes

2020 ◽  
Author(s):  
Sang-Gil Woo ◽  
Eun-Kyoung Hwang ◽  
Hee-Kook Kang ◽  
Haeun Lee ◽  
Je-Nam Lee ◽  
...  
Keyword(s):  
Sulfated Zirconia ◽  
Solid Electrolyte Interphase ◽  
Lithium Ion ◽  
Transference Number ◽  
Operating Conditions ◽  
Interfacial Instability ◽  
Lithium Metal ◽  
Lithium Metal Batteries ◽  
Lithium Dendrites ◽  
Battery Technology

Abstract The prospect of increasing the energy density has promoted research on lithium metal batteries. Yet, avoiding the uncontrolled growth of lithium dendrites and the resulting interfacial instability to ensure the practical viability of the given battery technology remains a considerable challenge. Here, we report coating the separator with sulfated zirconia superacid to achieve a high lithium ion transference number of 0.92 and compelling cycle life when a full-cell paired with a LiNi0.82Co0.07Mn0.11O2 cathode was tested in a carbonate electrolyte under practical operating conditions. The exceptionally high transference number is attributed to strengthened binding of the PF6− anion of the lithium salt with the superacid. Furthermore, a trace amount of water bound to the superacid reacts with PF6− to induce a mechanically stable solid-electrolyte-interphase (SEI) layer rich in LixPOyFz. This study demonstrates the beneficial effect of the superacid on emerging post-lithium-ion batteries by immobilizing the anion of the salt as well as modifying the SEI composition.

Slurry-like hybrid electrolyte with high lithium-ion transference number for dendrite-free lithium metal anode

2020 ◽  
Vol 48 ◽  
pp. 375-382 ◽  
Author(s):  
Hewei Xu ◽  
Ying He ◽  
Zibo Zhang ◽  
Junli Shi ◽  
Pingying Liu ◽  
...  
Keyword(s):  
Lithium Ion ◽  
Transference Number ◽  
Lithium Metal ◽  
Metal Anode ◽  
Lithium Ion Transference Number ◽  
Lithium Metal Anode

Ultrathin Yet Robust Single Lithium‐Ion Conducting Quasi‐Solid‐State Polymer‐Brush Electrolytes Enable Ultralong‐Life and Dendrite‐Free Lithium‐Metal Batteries

2021 ◽  
pp. 2100943
Author(s):  
Minghong Zhou ◽  
Ruliang Liu ◽  
Danyang Jia ◽  
Yin Cui ◽  
Qiantong Liu ◽  
...  
Keyword(s):  
Solid State ◽  
Polymer Brush ◽  
Lithium Ion ◽  
Lithium Metal ◽  
Lithium Metal Batteries ◽  
Ion Conducting

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.

2D Operando Acoustic Characterization of Lithium-Ion and Lithium-Metal Batteries

2021 ◽  
Vol MA2021-02 (1) ◽  
pp. 127-127
Author(s):  
Wesley Chang ◽  
Daniel A. Steingart
Keyword(s):  
Lithium Ion ◽  
Lithium Metal ◽  
Lithium Metal Batteries ◽  
Acoustic Characterization

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.

Solid-State Rechargeable Lithium Metal Battery with Li4B4Al3O12Cl-based Water-Resistant Lithium-Ion-Conducting Oxychloride Glass-Ceramic Electrolyte

2021 ◽  
Vol 168 (4) ◽  
pp. 040524
Author(s):  
Mayu Saito ◽  
Hidechika Arima ◽  
Mao Shoji ◽  
Yota Kizuki ◽  
Hirokazu Munakata ◽  
...  
Keyword(s):  
Solid State ◽  
Glass Ceramic ◽  
Lithium Ion ◽  
Lithium Metal ◽  
Ceramic Electrolyte ◽  
Lithium Metal Battery ◽  
Ion Conducting
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