Interfacial Engineering Facilitating Robust Li6.35Ga0.15La3Zr1.8Nb0.2O12 for All-solid-state Lithium Batteries

2021 ◽  
Author(s):  
Hongyang Fan ◽  
Fuxin Wei ◽  
Jianchuan Luo ◽  
Shufen Wu ◽  
Xiying JIan ◽  
...  
Keyword(s):  
Solid State ◽  
Lithium Ion Batteries ◽  
Lithium Batteries ◽  
Organic Liquid ◽  
Lithium Ion ◽  
Liquid Electrolyte ◽  
Inherent Safety ◽  
Interfacial Resistance ◽  
Safety Issues ◽  
Interfacial Engineering

All-solid-state Lithium batteries are promising substitutes for traditional lithium ion batteries to solve the inherent safety issues of organic liquid electrolyte. However, the large interfacial resistance renders the batteries insufficient...

Experimental and numerical analysis to identify the performance limiting mechanisms in solid-state lithium cells under pulse operating conditions

2019 ◽  
Vol 21 (41) ◽  
pp. 22740-22755 ◽  
Author(s):  
Mei-Chin Pang ◽  
Yucang Hao ◽  
Monica Marinescu ◽  
Huizhi Wang ◽  
Mu Chen ◽  
...  
Keyword(s):  
Solid State ◽  
Numerical Analysis ◽  
Energy Density ◽  
Lithium Ion Batteries ◽  
Lithium Batteries ◽  
Safety Concern ◽  
Lithium Ion ◽  
Thermal Runaway ◽  
Operating Conditions ◽  
Lithium Cells

Solid-state lithium batteries could reduce the safety concern due to thermal runaway while improving the gravimetric and volumetric energy density beyond the existing practical limits of lithium-ion batteries.

Advances and Prospects of Sulfide All‐Solid‐State Lithium Batteries via One‐to‐One Comparison with Conventional Liquid Lithium Ion Batteries

2019 ◽  
Vol 31 (29) ◽  
pp. 1900376 ◽  
Author(s):  
Hyomyung Lee ◽  
Pilgun Oh ◽  
Junhyeok Kim ◽  
Hyungyeon Cha ◽  
Sujong Chae ◽  
...  
Keyword(s):  
Solid State ◽  
Lithium Ion Batteries ◽  
Lithium Batteries ◽  
Lithium Ion ◽  
Liquid Lithium ◽  
One To One

Novel Structured Electrolyte for All-Solid-State Lithium Ion Batteries

2015 ◽  
Author(s):  
Wei Liu ◽  
Ryan Milcarek ◽  
Kang Wang ◽  
Jeongmin Ahn
Keyword(s):  
Solid State ◽  
Lithium Ion Batteries ◽  
Solid Electrolytes ◽  
Material Selection ◽  
Layer Structure ◽  
Gel Polymer Electrolyte ◽  
Lithium Ion ◽  
Interfacial Resistance ◽  
Solid State Electrolyte ◽  
Ceramic Electrolyte

In this study, a multi-layer structure solid electrolyte (SE) for all-solid-state electrolyte lithium ion batteries (ASSLIBs) was fabricated and characterized. The SE was fabricated by laminating ceramic electrolyte Li1.3Al0.3Ti1.7(PO4)3 (LATP) with polymer (PEO)10-Li(N(CF3SO2)2 electrolyte and gel-polymer electrolyte of PVdF-HFP/ Li(N(CF3SO2)2. It is shown that the interfacial resistance is generated by poor contact at the interface of the solid electrolytes. The lamination protocol, material selection and fabrication method play a key role in the fabrication process of practical multi-layer SEs.

scholarly journals Electrospun Core-Shell Nanofiber as Separator for Lithium-Ion Batteries with High Performance and Improved Safety

2019 ◽  
Author(s):  
Yun Zhao ◽  
Yanxi Li ◽  
Zheng Liang
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Vinylidene Fluoride ◽  
Short Circuit ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Liquid Electrolyte ◽  
Core Shell ◽  
Fiber Network ◽  
Safety Issues

Though the energy density of lithium-ion batteries continues to increase, safety issues related with the internal short-circuit and the resulting combustion of highly flammable electrolyte impede the further development of lithium-ion batteries. It has been well-accepted that a thermal stable separator is important to postpone the entire battery short-circuit and thermal-runaway. Traditional methods to improve the thermal stability of separators includes surface modification and/or developing alternate material systems for separators which may always affect the battery performance negatively. Herein, a thermostable and shrink-free separator with little compromise in battery performance is prepared by coaxial electrospinning and tested. The separator consists of core-shell fiber networks where poly(vinylidene fluoride-hexafluoropropylene) (PVDF-HFP) layer serves as shell and polyacrylonitrile (PAN) as the core. This core-shell fiber network exhibits little or even no shrinking/melting at elevated temperature over 250 °C. Meanwhile, it shows excellent electrolyte wettability and can take large amount of liquid electrolyte three times more than that of conventional Celgard 2400 separator. In addition, the half-cell using LiNi1/3Co1/3Mn1/3O2 as cathode and the aforementioned electrospun core-shell fiber network as separator demonstrates superior electrochemical behavior, stably cycling for 200 cycles at 1 C with a reversible capacity of 130 mAh g-1 and little capacity decay.

scholarly journals Nanostructured Si-C Composites As High-Capacity Anode Material For All-Solid-State Lithium-Ion Batteries

2021 ◽  
Author(s):  
Stephanie Poetke ◽  
Felix Hippauf ◽  
Anne Baasner ◽  
Susanne Dörfler ◽  
Holger Althues ◽  
...  
Keyword(s):  
Solid State ◽  
Lithium Ion Batteries ◽  
Silicon Nanoparticles ◽  
Coulombic Efficiency ◽  
High Capacity ◽  
Lithium Ion ◽  
Carbon Matrix ◽  
Liquid Electrolyte ◽  
Side Reactions ◽  
Silicon Carbon

<p>Silicon carbon void structures (Si-C) are attractive anode materials for Lithium-ion batteries to cope with the volume changes of silicon during cycling. In this study, Si-C with varying Si contents (28 ‑ 37 %) are evaluated in all-solid-state batteries (ASSBs) for the first time. The carbon matrix enables enhanced performance and lifetime of the Si-C composites compared to bare silicon nanoparticles in half-cells even at high loadings of up to 7.4 mAh cm<sup>-2</sup>. In full cells with nickel-rich NCM (LiNi<sub>0.9</sub>Co<sub>0.05</sub>Mn<sub>0.05</sub>O<sub>2</sub>, 210 mAh g<sup>-1</sup>), kinetic limitations in the anode lead to a lowered voltage plateau compared to NCM half-cells. The solid electrolyte (Li<sub>6</sub>PS<sub>5</sub>Cl, 3 mS cm<sup>-1</sup>) does not penetrate the Si-C void structure resulting in less side reactions and higher initial coulombic efficiency compared to a liquid electrolyte (72.7 % vs. 31.0 %). Investigating the influence of balancing of full cells using 3-electrode ASSB cells revealed a higher delithiation of the cathode as a result of the higher cut-off voltage of the anode at high n/p ratios. During galvanostatic cycling, full cells with either a low or rather high overbalancing of the anode showed the highest capacity retention of up to 87.7 % after 50 cycles. </p>

scholarly journals A review of composite solid-state electrolytes for lithium batteries: fundamentals, key materials and advanced structures

2020 ◽  
Vol 49 (23) ◽  
pp. 8790-8839
Author(s):  
Yun Zheng ◽  
Yuze Yao ◽  
Jiahua Ou ◽  
Matthew Li ◽  
Dan Luo ◽  
...  
Keyword(s):  
Energy Storage ◽  
Solid State ◽  
Energy Density ◽  
Lithium Ion Batteries ◽  
Lithium Batteries ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Next Generation ◽  
Composite Solid

All-solid-state lithium ion batteries (ASSLBs) are considered next-generation devices for energy storage due to their advantages in safety and potentially high energy density.

scholarly journals Effect of Liquid Electrolyte Soaking on the Interfacial Resistance of Li7La3Zr2O12 for All-Solid-State Lithium Batteries

2020 ◽  
Vol 12 (18) ◽  
pp. 20605-20612 ◽  
Author(s):  
Münir M. Besli ◽  
Camille Usubelli ◽  
Michael Metzger ◽  
Vikram Pande ◽  
Katherine Harry ◽  
...  
Keyword(s):  
Solid State ◽  
Lithium Batteries ◽  
Liquid Electrolyte ◽  
Interfacial Resistance

scholarly journals Structure and Ion Conductivity Study of Argyrodite (Li5.5PS4.5Cl1.5) according to Cooling Method

2021 ◽  
Vol 59 (4) ◽  
pp. 247-255
Author(s):  
Sangwon Park ◽  
Jin-Woong Lee
Keyword(s):  
Solid State ◽  
High Performance ◽  
Ionic Conductivities ◽  
Lithium Ion ◽  
Structural Features ◽  
Liquid Electrolyte ◽  
Nmr Studies ◽  
Safety Issues ◽  
Cooling Speed ◽  
Solid State Batteries

All solid-state batteries (ASSBs) are now anticipated to be an ultimate solution to the persistent safety issues of conventional lithium-ion batteries (LIBs). Contemporary society’s expanding power demands and growing energy consumption require energy storage with greater reliability, safety and capacity, which cannot be easily achieved with current state-of-the-art liquid-electrolyte-based LIBs. In contrast, these conditions are expected to be met by implementing ASSBs with high-performance solid-state electrolytes (SSEs). In this work, we altered the microscopic structure and Li diffusional behaviors of argyrodites (Li<sub>6-x</sub>PS<sub>5-x</sub>Cl<sub>1+x</sub>), which were precisely monitored with cooling protocols. It was shown that, at the cooling speed of -3 <sup>o</sup>C·h<sup>-1</sup>, as the cooling rate decreased, impurities in Li<sub>5.5</sub>PS<sub>4.5</sub>Cl<sub>1.5</sub> such as LiCl and Li<sub>3</sub>PO<sub>4</sub> gradually diminished and eventually disappeared. At the same time, differences in the lattice sizes of Li<sub>5.5</sub>PS<sub>4.5</sub>Cl<sub>1.5</sub> crystallites gradually decreased, resulting in a single phase Li<sub>5.5</sub>PS<sub>4.5</sub>Cl<sub>1.5</sub>. It was also found that the Cl content of the 4d crystallographic sites increased, eventually contributing to the improvement in ionic conductivity. This work also revealed the effect of cooling rates on the crystallographic atomic arrangements, which became weaker as a decrease in x. The correlations between ionic conductivities and structural features were experimentally verified via XRD and solid-state NMR studies.

Study of LiNi0.6Co0.2Mn0.2O2 Coated with Li2ZrO3 Nanolayers in All-Solid-State Lithium Ion Batteries

2020 ◽  
Vol 12 (3) ◽  
pp. 412-421 ◽  
Author(s):  
Young-Jin Kim ◽  
Rajagopal Rajesh ◽  
Kwang-Sun Ryu
Keyword(s):  
Electron Microscopy ◽  
Solid State ◽  
Lithium Ion Batteries ◽  
Electrochemical Impedance ◽  
Lithium Ion ◽  
Cycle Performance ◽  
Interfacial Resistance ◽  
Capacity Retention ◽  
Coating Agent ◽  
X Ray

The Li2ZrO3 nanolayer was coated over LiNi0.6Co0.2Mn0.2O2 cathode material (NCM) to produce all-solid-state lithium ion batteries and their enhanced electrochemical properties were determined. To relieve interfacial resistance resulting from insufficient contact, a Li2ZrO3 nanolayer is a suitable cathode coating agent because it can block corrosive species and decrease contact loss, along with elimination of the space-charge layer. All-solid-state cells using Li2ZrO3-coated NCM material showed higher capacity than pristine NCM. X-ray diffraction patterns showed the same peak separations and lattice parameters as pristine material. Scanning electron microscopy and transmission electron microscopy images obtained with electron dispersive spectroscopy mapping confirmed homogeneous coating with a uniformly thick Li2ZrO3 layer of around 5 nm. X-ray photoelectron spectroscopy revealed that the surface of NCM had two different O1s peaks, with a Zr–O peak, and Ni, Co, Mn, and Zr peaks. Electrochemical studies on pristine and Li2ZrO3-coated NCM materials were conducted using electrochemical impedance spectroscopy with galvanostatic cycle performances by constructing an all-solid-state cell. The impedance spectra showed relieved interfacial resistance with low polarization as coating agent was added. Notably, the 4 wt.% Li2ZrO3-coated NCM exhibited capacity retention of 81% at a current density of 0.12 mA/cm2 after 30 cycles, while that of the pristine cell hadunstable cycle performance and a low capacity retention of 69 percent. Thus, the Li2ZrO3-coated NCM material exhibited potential for all-solid-state batteries requiring high power or stable application.

scholarly journals Electrospun Core-Shell Nanofiber as Separator for Lithium-Ion Batteries with High Performance and Improved Safety

Energies ◽  
2019 ◽  
Vol 12 (17) ◽  
pp. 3391 ◽  
Author(s):  
Zheng Liang ◽  
Yun Zhao ◽  
Yanxi Li
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Vinylidene Fluoride ◽  
Short Circuit ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Liquid Electrolyte ◽  
Core Shell ◽  
Fiber Network ◽  
Safety Issues

Though the energy density of lithium-ion batteries continues to increase, safety issues related to the internal short circuit and the resulting combustion of highly flammable electrolytes impede the further development of lithium-ion batteries. It has been well-accepted that a thermal stable separator is important to postpone the entire battery short circuit and thermal runaway. Traditional methods to improve the thermal stability of separators include surface modification and/or developing alternate material systems for separators, which may affect the battery performance negatively. Herein, a thermostable and shrink-free separator with little compromise in battery performance was prepared by coaxial electrospinning and tested. The separator consisted of core-shell fiber networks where poly (vinylidene fluoride-hexafluoropropylene) (PVDF-HFP) layer served as shell and polyacrylonitrile (PAN) as the core. This core-shell fiber network exhibited little or even no shrinking/melting at elevated temperature over 250 °C. Meanwhile, it showed excellent electrolyte wettability and could take large amounts of liquid electrolyte, three times more than that of conventional Celgard 2400 separator. In addition, the half-cell using LiNi1/3Co1/3Mn1/3O2 as cathode and the aforementioned electrospun core-shell fiber network as separator demonstrated superior electrochemical behavior, stably cycling for 200 cycles at 1 C with a reversible capacity of 130 mA·h·g−1 and little capacity decay.

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