scholarly journals Effect of the supergravity on the formation and cycle life of non-aqueous lithium metal batteries

2022 ◽  
Vol 13 (1) ◽  
Author(s):  
Yuliang Gao ◽  
Fahong Qiao ◽  
Jingyuan You ◽  
Zengying Ren ◽  
Nan Li ◽  
...  

AbstractExtra-terrestrial explorations require electrochemical energy storage devices able to operate in gravity conditions different from those of planet earth. In this context, lithium (Li)-based batteries have not been fully investigated, especially cell formation and cycling performances under supergravity (i.e., gravity > 9.8 m s−2) conditions. To shed some light on these aspects, here, we investigate the behavior of non-aqueous Li metal cells under supergravity conditions. The physicochemical and electrochemical characterizations reveal that, distinctly from earth gravity conditions, smooth and dense Li metal depositions are obtained under supergravity during Li metal deposition on a Cu substrate. Moreover, supergravity allows the formation of an inorganic-rich solid electrolyte interphase (SEI) due to the strong interactions between Li+ and salt anions, which promote significant decomposition of the anions on the negative electrode surface. Tests in full Li metal pouch cell configuration (using LiNi0.8Co0.1Mn0.1O2-based positive electrode and LiFSI-based electrolyte solution) also demonstrate the favorable effect of the supergravity in terms of deposition morphology and SEI composition and ability to carry out 200 cycles at 2 C (400 mA g−1) rate with a capacity retention of 96%.

Physchem ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 26-44
Author(s):  
Chiara Ferrara ◽  
Riccardo Ruffo ◽  
Piercarlo Mustarelli

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.


2016 ◽  
Vol 4 (42) ◽  
pp. 16635-16644 ◽  
Author(s):  
Lu Li ◽  
Xitian Zhang ◽  
Zhiguo Zhang ◽  
Mingyi Zhang ◽  
Lujia Cong ◽  
...  

The development of a negative electrode for supercapacitors is very critical for the next-generation of energy-storage devices while it remains a great challenge.


Author(s):  
Yamato Haniu ◽  
Hiroki Nara ◽  
Seongki Ahn ◽  
Toshiyuki Momma ◽  
Wataru Sugimoto ◽  
...  

Lithium-ion capacitors (LICs) are energy storage devices that bridge the gap between electric double-layer capacitors and lithium-ion batteries (LIBs). A typical LIC cell is composed of a capacitor-type positive electrode...


2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Bo Liu ◽  
Yan Wang ◽  
Hong-Wu Jiang ◽  
Ben-Xue Zou

WO3nanowires directly grown on graphene sheets have been fabricated by using a seed-mediated hydrothermal method. The morphologies and electrochemical performance of WO3films prepared by different process were studied. The results show that the precoated nanoseeds and graphene sheets on graphite electrode provide more reactive centers for the nucleation and formation of uniform WO3nanowires. The WO3nanowires electrode exhibits a high area specific capacitance of 800 mF cm−2over negative potential range from −1.0 V to 0 V versus SCE in 1 M Li2SO4solution. A high performance electrochemical supercapacitor assembled with WO3nanowires as negative electrode and PANI/MnO2as positive electrodes over voltage range of 1.6 V displays a high volumetric capacitance of 2.5 F cm−3, which indicate great potential applications of WO3nanowires on graphene sheets as negative electrode for energy storage devices.


Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3010
Author(s):  
Samson Yuxiu Lai ◽  
Carmen Cavallo ◽  
Muhammad E. Abdelhamid ◽  
Fengliu Lou ◽  
Alexey Y. Koposov

Li-ion capacitors (LICs) are designed to achieve high power and energy densities using a carbon-based material as a positive electrode coupled with a negative electrode often adopted from Li-ion batteries. However, such adoption cannot be direct and requires additional materials optimization. Furthermore, for the desired device’s performance, a proper design of the electrodes is necessary to balance the different charge storage mechanisms. The negative electrode with an intercalation or alloying active material must provide the high rate performance and long-term cycling ability necessary for LIC functionality—a primary challenge for the design of these energy-storage devices. In addition, the search for new active materials must also consider the need for environmentally friendly chemistry and the sustainable availability of key elements. With these factors in mind, this review evaluates advanced and emerging materials used as high-rate anodes in LICs from the perspective of their practical implementation.


2014 ◽  
Vol 2 (42) ◽  
pp. 17906-17913 ◽  
Author(s):  
Xiaofei Zhang ◽  
Ruben-Simon Kühnel ◽  
Matthias Schroeder ◽  
Andrea Balducci

A carbon coated Li3V2(PO4)3 nanomaterial obtained by an ionic liquid-assisted synthesis is presented as an excellent negative electrode material for high power energy storage devices.


Author(s):  
Yanyun Sun ◽  
Feng Li ◽  
Peiyu Hou

Solid-state lithium-metal batteries (SSLMBs) with the advantages of brilliant safety, superior energy density and thermal stability are regarded as one of the most promising energy storage devices. However, intrinsic defects...


Author(s):  
Hui Zhang ◽  
Yabing Qi

Lithium metal batteries are the promising candidates for meeting the increasing demand of next-generation energy storage devices with high energy density, however, the problems of lithium dendrite and unstable solid...


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