scholarly journals Increased Cycling Performance of Li-Ion Batteries by Phosphoric Acid Modified LiNi0.5Mn1.5O4 Cathodes in the Presence of LiBOB

2019 ◽  
Vol 2019 ◽  
pp. 1-7 ◽  
Author(s):  
Maheeka Yapa Abeywardana ◽  
Nina Laszczynski ◽  
Matthias Kuenzel ◽  
Dominic Bresser ◽  
Stefano Passerini ◽  
...  

LiNi0.5Mn1.5O4 (LNMO), which has an operating voltage of 4.8 vs Li/Li+ and a theoretical capacity of 147 mAh g−1, is an interesting cathode material for advanced lithium ion batteries. However, electrolyte decomposition at the electrode can gradually decrease the capacity of the battery. In this study, the surface of the LNMO cathode has been modified with phosphoric acid (PA) to improve the capacity of the LNMO/graphite full cell. Modification of LNMO cathodes by PA is confirmed by surface analysis. Additionally, the presence of lithium bis-(oxalato) borate (LiBOB) as an electrolyte additive further enhances the performance of PA modified LNMO/graphite cells. The improved performance of PA modified cathodes and electrolytes containing LiBOB can be attributed to the suppressed Mn and Ni deposition on the anode. Elemental analysis suggests that the Mn and Ni dissolution is significantly reduced compared to unmodified LNMO/graphite cells with standard electrolyte.

RSC Advances ◽  
2017 ◽  
Vol 7 (39) ◽  
pp. 24418-24424 ◽  
Author(s):  
Jian Yang ◽  
Mengqiang Wu ◽  
Feng Gong ◽  
Tingting Feng ◽  
Cheng Chen ◽  
...  

Mixed metal vanadate oxides are promising superior anode materials for lithium ion batteries due to their high specific capacities, improved cycling performance and excellent rate properties.


2015 ◽  
Vol 44 (21) ◽  
pp. 9909-9914 ◽  
Author(s):  
Hailong Fei ◽  
Xin Liu ◽  
Zhiwei Li ◽  
Wenjing Feng

Manganese 3,5-pyridinedicarboxylate as an anode material for Li-ion batteries showed good cycling stability.


2021 ◽  
Author(s):  
Susan A. Odom

Overcharge protection of Li-ion batteries with a variety of phenothiazine derivatives.


RSC Advances ◽  
2021 ◽  
Vol 11 (39) ◽  
pp. 24132-24136
Author(s):  
Liurui Li ◽  
Tairan Yang ◽  
Zheng Li

The pre-treatment efficiency of the direct recycling strategy in recovering end-of-life Li-ion batteries is predicted with levels of control factors.


Materials ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4348
Author(s):  
Chi Zhang ◽  
Zheng Wang ◽  
Yu Cui ◽  
Xuyao Niu ◽  
Mei Chen ◽  
...  

The volume expansion during Li ion insertion/extraction remains an obstacle for the application of Sn-based anode in lithium ion-batteries. Herein, the nanoporous (np) Cu6Sn5 alloy and Cu6Sn5/Sn composite were applied as a lithium-ion battery anode. The as-dealloyed np-Cu6Sn5 has an ultrafine ligament size of 40 nm and a high BET-specific area of 15.9 m2 g−1. The anode shows an initial discharge capacity as high as 1200 mA h g−1, and it remains a capacity of higher than 600 mA h g−1 for the initial five cycles at 0.1 A g−1. After 100 cycles, the anode maintains a stable capacity higher than 200 mA h g−1 for at least 350 cycles, with outstanding Coulombic efficiency. The ex situ XRD patterns reveal the reverse phase transformation between Cu6Sn5 and Li2CuSn. The Cu6Sn5/Sn composite presents a similar cycling performance with a slightly inferior rate performance compared to np-Cu6Sn5. The study demonstrates that dealloyed nanoporous Cu6Sn5 alloy could be a promising candidate for lithium-ion batteries.


RSC Advances ◽  
2015 ◽  
Vol 5 (26) ◽  
pp. 20386-20389 ◽  
Author(s):  
Chongchong Zhao ◽  
Cai Shen ◽  
Weiqiang Han

Metal organic nanofibers (MONFs) synthesized from precursors of amino acid and copper nitrate were applied as anode materials for Li-ion batteries.


Author(s):  
Gearoid A Collins ◽  
Hugh Geaney ◽  
Kevin Michael Ryan

Li-ion batteries (LIBs) have become critical components in the manufacture of electric vehicles (EV) as they offer the best all-round performance compared to competing battery chemistries. However, LIB performance at...


RSC Advances ◽  
2016 ◽  
Vol 6 (106) ◽  
pp. 104597-104607 ◽  
Author(s):  
Monika Wilamowska-Zawlocka ◽  
Paweł Puczkarski ◽  
Zofia Grabowska ◽  
Jan Kaspar ◽  
Magdalena Graczyk-Zajac ◽  
...  

We report here on the synthesis and characterization of silicon oxycarbide (SiOC) in view of its application as a potential anode material for Li-ion batteries.


Author(s):  
Mohammed Rabah ◽  
Eero Immonen ◽  
Sajad Shahsavari ◽  
Mohammad-Hashem Haghbayan ◽  
Kirill Murashko ◽  
...  

Understanding battery capacity degradation is instrumental for designing modern electric vehicles. In this paper, a Semi-Empirical Model for predicting the Capacity Loss of Lithium-ion batteries during Cycling and Calendar Aging is developed. In order to redict the Capacity Loss with a high accuracy, battery operation data from different test conditions and different Lithium-ion batteries chemistries were obtained from literature for parameter optimization (fitting). The obtained models were then compared to experimental data for validation. Our results show that the average error between the estimated Capacity Loss and measured Capacity Loss is less than 1.5% during Cycling Aging, and less than 2% during Calendar Aging. An electric mining dumper, with simulated duty cycle data, is considered as an application example.


2020 ◽  
Vol 10 (15) ◽  
pp. 2070069
Author(s):  
Koeun Kim ◽  
Daeyeon Hwang ◽  
Saehun Kim ◽  
Sung O Park ◽  
Hyungyeon Cha ◽  
...  

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