scholarly journals Calendar-life versus cycle-life aging of lithium-ion cells with silicon-graphite composite electrodes

2018 ◽  
Vol 280 ◽  
pp. 221-228 ◽  
Author(s):  
Kaushik Kalaga ◽  
Marco-Tulio F. Rodrigues ◽  
Stephen E. Trask ◽  
Ilya A. Shkrob ◽  
Daniel P. Abraham
Keyword(s):  
Lithium Ion ◽  
Cycle Life ◽  
Composite Electrodes ◽  
Graphite Composite ◽  
Lithium Ion Cells

scholarly journals The Effect of Silicon Grade and Electrode Architecture on the Performance of Advanced Anodes for Next Generation Lithium-Ion Cells

Nanomaterials ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 3448
Author(s):  
Alexandra Meyer ◽  
Fabian Ball ◽  
Wilhelm Pfleging
Keyword(s):  
Electrochemical Impedance ◽  
Active Material ◽  
Specific Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Composite Electrodes ◽  
Counter Electrodes ◽  
Transfer Resistance ◽  
Graphite Composite ◽  
Lithium Ion Cells

To increase the specific capacity of anodes for lithium-ion cells, advanced active materials, such as silicon, can be utilized. Silicon has an order of magnitude higher specific capacity compared to the state-of-the-art anode material graphite; therefore, it is a promising candidate to achieve this target. In this study, different types of silicon nanopowders were introduced as active material for the manufacturing of composite silicon/graphite electrodes. The materials were selected from different suppliers providing different grades of purity and different grain sizes. The slurry preparation, including binder, additives, and active material, was established using a ball milling device and coating was performed via tape casting on a thin copper current collector foil. Composite electrodes with an areal capacity of approximately 1.70 mAh/cm² were deposited. Reference electrodes without silicon were prepared in the same manner, and they showed slightly lower areal capacities. High repetition rate, ultrafast laser ablation was applied to these high-power electrodes in order to introduce line structures with a periodicity of 200 µm. The electrochemical performance of the anodes was evaluated as rate capability and operational lifetime measurements including pouch cells with NMC 622 as counter electrodes. For the silicon/graphite composite electrodes with the best performance, up to 200 full cycles at a C-rate of 1C were achieved until end of life was reached at 80% relative capacity. Additionally, electrochemical impedance spectroscopies were conducted as a function of state of health to correlate the used silicon grade with solid electrolyte interface (SEI) formation and charge transfer resistance values.

Investigation of Tin-Graphite Composite Anodes for Rechargeable Lithium Ion Battery

1998 ◽  
Vol 548 ◽  
Author(s):  
E. Dayalan
Keyword(s):  
High Capacity ◽  
Lithium Ion ◽  
Alloy Formation ◽  
Composite Electrodes ◽  
Graphite Electrodes ◽  
Graphite Composite ◽  
Lithium Ion Cells ◽  
Initial Charge ◽  
Composite Anodes ◽  
Number Of Cycles

ABSTRACTTwo tin-graphite composite electrodes (27.8 % and 44.4 % tin) were evaluated for their use as high capacity anodes in rechargeable lithium ion cells. The initial charge capacities of these two electrodes were 520 mAh/g and 590 mAh/g, respectively. Cyclic voltammetry and charge-discharge cycling studies point to the alloy formation reaction between tin and lithium being the main contributing factor to the increased capacity. The capacity of these electrodes decreases with cycling but maintains considerably higher capacity than graphite electrode with same number of cycles. The development of optimized tin-graphite composite electrodes with much higher capacity than graphite electrodes looks promising.

Impact of Silicon/Graphite Composite Electrode Porosity on the Cycle Life of 18650 Lithium-Ion Cell

2020 ◽  
Vol 3 (12) ◽  
pp. 11873-11885
Author(s):  
Irina Profatilova ◽  
Eric De Vito ◽  
Sylvie Genies ◽  
Christophe Vincens ◽  
Elise Gutel ◽  
...  
Keyword(s):  
Composite Electrode ◽  
Lithium Ion ◽  
Cycle Life ◽  
Graphite Composite ◽  
Lithium Ion Cell

Increasing the cycle life of lithium ion cells by partial state of charge cycling

2015 ◽  
Vol 55 (11) ◽  
pp. 2247-2253 ◽  
Author(s):  
Hans de Vries ◽  
Thanh Trung Nguyen ◽  
Bert Op het Veld
Keyword(s):  
Lithium Ion ◽  
State Of Charge ◽  
Cycle Life ◽  
Lithium Ion Cells ◽  
Partial State

Electrochemical Cycle-Life Characterization of High Energy Lithium-Ion Cells with Thick Li(Ni0.6Mn0.2Co0.2)O2and Graphite Electrodes

2017 ◽  
Vol 164 (6) ◽  
pp. A1037-A1049 ◽  
Author(s):  
Yongjun Leng ◽  
Shanhai Ge ◽  
Dan Marple ◽  
Xiao-Guang Yang ◽  
Christoph Bauer ◽  
...  
Keyword(s):  
Lithium Ion ◽  
High Energy ◽  
Cycle Life ◽  
Graphite Electrodes ◽  
Lithium Ion Cells

scholarly journals Crosslinked Polyimide and Reduced Graphene Oxide Composites as Long Cycle Life Positive Electrode for Lithium‐Ion Cells

ChemSusChem ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 5571-5579
Author(s):  
Hui Gao ◽  
Bingbing Tian ◽  
Haofan Yang ◽  
Alex R. Neale ◽  
Marc A. Little ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Lithium Ion ◽  
Positive Electrode ◽  
Cycle Life ◽  
Long Cycle ◽  
Long Cycle Life ◽  
Lithium Ion Cells ◽  
Reduced Graphene ◽  
Oxide Composites

Manufacturing of industry-relevant silicon negative composite electrodes for lithium ion-cells

2014 ◽  
Vol 262 ◽  
pp. 112-122 ◽  
Author(s):  
B.P.N. Nguyen ◽  
S. Chazelle ◽  
M. Cerbelaud ◽  
W. Porcher ◽  
B. Lestriez
Keyword(s):  
Lithium Ion ◽  
Composite Electrodes ◽  
Lithium Ion Cells
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