Structural origins of enhanced capacity retention in novel copolymerized sulfur-based composite cathodes for high-energy density Li–S batteries

2015 ◽  
Vol 5 (3) ◽  
pp. 353-364 ◽  
Author(s):  
Vladimir P. Oleshko ◽  
Jenny Kim ◽  
Jennifer L. Schaefer ◽  
Steven D. Hudson ◽  
Christopher L. Soles ◽  
...  
Keyword(s):  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Capacity Retention ◽  
Composite Cathodes ◽  
Image Position

Abstract

scholarly journals High Energy Density CNT/NaI Composite Cathodes for Sodium‐Ion Batteries

2018 ◽  
Vol 5 (23) ◽  
pp. 1801342 ◽  
Author(s):  
Sanghyeon Kim ◽  
Xiangming Li ◽  
Lingzi Sang ◽  
Young Soo Yun ◽  
Ralph G. Nuzzo ◽  
...  
Keyword(s):  
Energy Density ◽  
High Energy ◽  
Sodium Ion ◽  
High Energy Density ◽  
Sodium Ion Batteries ◽  
Composite Cathodes

High energy density hybrid Mg2+/Li+ battery with superior ultra-low temperature performance

2016 ◽  
Vol 4 (6) ◽  
pp. 2277-2285 ◽  
Author(s):  
Zhonghua Zhang ◽  
Huimin Xu ◽  
Zili Cui ◽  
Pu Hu ◽  
Jingchao Chai ◽  
...  
Keyword(s):  
Energy Density ◽  
Low Temperature ◽  
High Energy ◽  
High Potential ◽  
High Energy Density ◽  
Polar Regions ◽  
Capacity Retention ◽  
Temperature Performance ◽  
Li Battery ◽  
Low Temperature Performance

A hybrid Mg2+/Li+ battery operates at a high potential of 2.45 V and delivers superior properties, especially at ultra-low temperature (77% capacity retention at −40 °C), which is preferable for many peculiar fields and places, such as polar regions, aerospace, and deep offshore waters.

β-NiMoO4 nanowire arrays grown on carbon cloth for 3D solid asymmetry supercapacitors

RSC Advances ◽  
2015 ◽  
Vol 5 (129) ◽  
pp. 107098-107104 ◽  
Author(s):  
Chuanshen Wang ◽  
Yi Xi ◽  
Chenguo Hu ◽  
Shuge Dai ◽  
Mingjun Wang ◽  
...  
Keyword(s):  
Energy Density ◽  
Specific Capacitance ◽  
Power Density ◽  
High Energy ◽  
Nanowire Arrays ◽  
High Energy Density ◽  
Carbon Cloth ◽  
Maximum Power Density ◽  
Capacity Retention ◽  
3D Solid

A β-NiMoO4 NW supercapacitor lights one LED for 260 s and delivers a large specific capacitance (414.7 F g−1 at 0.25 A g−1), high energy density (36.86 W h kg−1), a maximum power density of 1100 W kg−1 and 65.96% capacity retention after 6000 cycles.

Analytical Multimode Scanning and Transmission Electron Imaging and Tomography of Multiscale Structural Architectures of Sulfur Copolymer-Based Composite Cathodes for Next-Generation High-Energy Density Li–S Batteries

2016 ◽  
Vol 22 (6) ◽  
pp. 1198-1221 ◽  
Author(s):  
Vladimir P. Oleshko ◽  
Andrew A. Herzing ◽  
Christopher L. Soles ◽  
Jared J. Griebel ◽  
Woo J. Chung ◽  
...  
Keyword(s):  
Multiple Scales ◽  
Mechanical Stability ◽  
Three Dimensional ◽  
High Energy ◽  
High Energy Density ◽  
Capacity Retention ◽  
Multivariate Statistical ◽  
Electron Microscopies ◽  
Transmission Electron ◽  
Composite Cathodes

AbstractPoly[sulfur-random-(1,3-diisopropenylbenzene)] copolymers synthesized via inverse vulcanization represent an emerging class of electrochemically active polymers recently used in cathodes for Li–S batteries, capable of realizing enhanced capacity retention (1,005 mAh/g at 100 cycles) and lifetimes of over 500 cycles. The composite cathodes are organized in complex hierarchical three-dimensional (3D) architectures, which contain several components and are challenging to understand and characterize using any single technique. Here, multimode analytical scanning and transmission electron microscopies and energy-dispersive X-ray/electron energy-loss spectroscopies coupled with multivariate statistical analysis and tomography were applied to explore origins of the cathode-enhanced capacity retention. The surface topography, morphology, bonding, and compositions of the cathodes created by combining sulfur copolymers with varying 1,3-diisopropenylbenzene content and conductive carbons have been investigated at multiple scales in relation to the electrochemical performance and physico-mechanical stability. We demonstrate that replacing the elemental sulfur with organosulfur copolymers improves the compositional homogeneity and compatibility between carbons and sulfur-containing domains down to sub-5 nm length scales resulting in (a) intimate wetting of nanocarbons by the copolymers at interfaces; (b) the creation of 3D percolation networks of conductive pathways involving graphitic-like outer shells of aggregated carbons; (c) concomitant improvements in the stability with preserved meso- and nanoscale porosities required for efficient charge transport.

Application of Li2S to compensate for loss of active lithium in a Si–C anode

2018 ◽  
Vol 6 (15) ◽  
pp. 6206-6211 ◽  
Author(s):  
Yuanjie Zhan ◽  
Hailong Yu ◽  
Liubin Ben ◽  
Bonan Liu ◽  
Yuyang Chen ◽  
...  
Keyword(s):  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Capacity Retention

A battery consisting of a Li2S pre-lithiated material/cathode and Si–C anode shows both high energy density and excellent capacity retention.

scholarly journals High Energy Density Single Crystal NMC/Li6PS5Cl Cathodes for All-Solid-State Lithium Metal Batteries

2021 ◽  
Author(s):  
Christopher Doerrer ◽  
Isaac Capone ◽  
Sudarshan Narayanan ◽  
Junliang Liu ◽  
Christopher Grovenor ◽  
...  
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Single Crystal ◽  
Discharge Capacity ◽  
Coulombic Efficiency ◽  
High Capacity ◽  
Composite Cathode ◽  
High Energy ◽  
High Energy Density ◽  
Composite Cathodes

<div><div><div><p>To match the high capacity of metallic anodes, all-solid-state batteries (ASSBs) re- quire high energy density, long-lasting composite cathodes such as Ni-Mn-Co (NMC)- based lithium oxides mixed with a solid-state electrolyte (SSE). However in practice, cathode capacity typically fades due to NMC cracking and increasing NMC/SSE in- terface debonding because of NMC pulverization, which is only partially mitigated by the application of a high cell pressure during cycling. Using smart processing proto- cols we report a single crystal particulate LiNi0.83Mn0.06Co0.11O2 and Li6PS5Cl SSE composite cathode with outstanding discharge capacity of 210 mAh g−1 at 30 °C. A first cycle coulombic efficiency of >85%, and >99% thereafter, was achieved despite a 5.5% volume change during cycling. A near-practical discharge capacity at a high areal capacity of 8.7 mAh cm−2 was obtained using a novel asymmetric anode/cathode cycling pressure of only 2.5 MPa/0.2 MPa.</p></div></div></div>

scholarly journals High Energy Density Single Crystal NMC/Li6PS5Cl Cathodes for All-Solid-State Lithium Metal Batteries

2021 ◽  
Author(s):  
Christopher Doerrer ◽  
Isaac Capone ◽  
Sudarshan Narayanan ◽  
Junliang Liu ◽  
Christopher Grovenor ◽  
...  
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Single Crystal ◽  
Discharge Capacity ◽  
Coulombic Efficiency ◽  
High Capacity ◽  
Composite Cathode ◽  
High Energy ◽  
High Energy Density ◽  
Composite Cathodes

<div><div><div><p>To match the high capacity of metallic anodes, all-solid-state batteries (ASSBs) re- quire high energy density, long-lasting composite cathodes such as Ni-Mn-Co (NMC)- based lithium oxides mixed with a solid-state electrolyte (SSE). However in practice, cathode capacity typically fades due to NMC cracking and increasing NMC/SSE in- terface debonding because of NMC pulverization, which is only partially mitigated by the application of a high cell pressure during cycling. Using smart processing proto- cols we report a single crystal particulate LiNi0.83Mn0.06Co0.11O2 and Li6PS5Cl SSE composite cathode with outstanding discharge capacity of 210 mAh g−1 at 30 °C. A first cycle coulombic efficiency of >85%, and >99% thereafter, was achieved despite a 5.5% volume change during cycling. A near-practical discharge capacity at a high areal capacity of 8.7 mAh cm−2 was obtained using a novel asymmetric anode/cathode cycling pressure of only 2.5 MPa/0.2 MPa.</p></div></div></div>

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