scholarly journals The critical role of carbon in marrying silicon and graphite anodes for high‐energy lithium‐ion batteries

Carbon Energy ◽  
2019 ◽  
Vol 1 (1) ◽  
pp. 57-76 ◽  
Author(s):  
Jingxing Wu ◽  
Yinliang Cao ◽  
Haimin Zhao ◽  
Jianfeng Mao ◽  
Zaiping Guo
Keyword(s):  
Lithium Ion Batteries ◽  
Critical Role ◽  
Lithium Ion ◽  
High Energy ◽  
Graphite Anodes

The Critical Role of Fluoroethylene Carbonate in the Gassing of Silicon Anodes for Lithium-Ion Batteries

2017 ◽  
Vol 2 (10) ◽  
pp. 2228-2233 ◽  
Author(s):  
Alexander Schiele ◽  
Ben Breitung ◽  
Toru Hatsukade ◽  
Balázs B. Berkes ◽  
Pascal Hartmann ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Critical Role ◽  
Lithium Ion ◽  
Silicon Anodes ◽  
Fluoroethylene Carbonate

scholarly journals Temperature, Ageing and Thermal Management of Lithium-Ion Batteries

Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1248
Author(s):  
Lena Spitthoff ◽  
Paul R. Shearing ◽  
Odne Stokke Burheim
Keyword(s):  
Lithium Ion Batteries ◽  
Thermal Management ◽  
Critical Role ◽  
Experimental Studies ◽  
Lithium Ion ◽  
High Energy ◽  
Operating Conditions ◽  
Battery Lifetime ◽  
Temperature Ageing ◽  
And Performance

Heat generation and therefore thermal transport plays a critical role in ensuring performance, ageing and safety for lithium-ion batteries (LIB). Increased battery temperature is the most important ageing accelerator. Understanding and managing temperature and ageing for batteries in operation is thus a multiscale challenge, ranging from the micro/nanoscale within the single material layers to large, integrated LIB packs. This paper includes an extended literature survey of experimental studies on commercial cells investigating the capacity and performance degradation of LIB. It compares the degradation behavior in terms of the influence of operating conditions for different chemistries and cell sizes. A simple thermal model for linking some of these parameters together is presented as well. While the temperature appears to have a large impact on ageing acceleration above room temperature during cycling for all studied cells, the effect of SOC and C rate appear to be rather cell dependent.Through the application of new simulations, it is shown that during cell testing, the actual cell temperature can deviate severely from the reported temperature depending on the thermal management during testing and C rate. It is shown, that the battery lifetime reduction at high C rates can be for large parts due to an increase in temperature especially for high energy cells and poor cooling during cycling studies. Measuring and reporting the actual battery (surface) temperature allow for a proper interpretation of results and transferring results from laboratory experiments to real applications.

scholarly journals Porous Manganese Oxide Networks as High-Capacity and High-Rate Anodes for Lithium-Ion Batteries

Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1299
Author(s):  
Jaeho Choi ◽  
Woo Jin Byun ◽  
DongHwan Kang ◽  
Jung Kyoo Lee
Keyword(s):  
Manganese Oxide ◽  
Lithium Ion Batteries ◽  
High Current Density ◽  
High Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
High Energy ◽  
High Rate ◽  
Full Cell ◽  
Graphite Anodes

A mesoporous MnOx network (MMN) structure and MMN/C composites were prepared and evaluated as anodes for high-energy and high-rate lithium-ion batteries (LIB) in comparison to typical manganese oxide nanoparticle (MnNP) and graphite anodes, not only in a half-cell but also in a full-cell configuration (assembled with an NCM523, LiNi0.5Co0.2Mn0.3O2, cathode). With the mesoporous features of the MMN, the MMN/C exhibited a high capacity (approximately 720 mAh g−1 at 100 mA g−1) and an excellent cycling stability at low electrode resistance compared to the MnNP/C composite. The MMN/C composite also showed much greater rate responses than the graphite anode. Owing to the inherent high discharge (de-lithiation) voltage of the MMN/C than graphite as anodes, however, the MMN‖NCM523 full cell showed approximately 87.4% of the specific energy density of the Gr‖NCM523 at 0.2 C. At high current density above 0.2 C, the MMN‖NCM523 cell delivered much higher energy than the Gr‖NCM523 mainly due to the excellent rate capability of the MMN/C anode. Therefore, we have demonstrated that the stabilized and high-capacity MMN/C composite can be successfully employed as anodes in LIB cells for high-rate applications.

Critical Role of the Crystallite Size in Nanostructured Li4Ti5O12 Anodes for Lithium-Ion Batteries

2018 ◽  
Vol 10 (26) ◽  
pp. 22580-22590 ◽  
Author(s):  
Junpei Yue ◽  
Felix M. Badaczewski ◽  
Pascal Voepel ◽  
Thomas Leichtweiß ◽  
Doreen Mollenhauer ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Crystallite Size ◽  
Critical Role ◽  
Lithium Ion

Understanding the Critical Role of the Ag Nanophase in Boosting the Initial Reversibility of Transition Metal Oxide Anodes for Lithium-Ion Batteries

2017 ◽  
Vol 9 (26) ◽  
pp. 21715-21722 ◽  
Author(s):  
Daehee Lee ◽  
Mihye Wu ◽  
Dong-Hyun Kim ◽  
Changju Chae ◽  
Min Kyung Cho ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Oxide ◽  
Lithium Ion Batteries ◽  
Critical Role ◽  
Lithium Ion ◽  
Transition Metal Oxide

scholarly journals Nanocrystalline iron oxide based electroactive materials in lithium ion batteries: the critical role of crystallite size, morphology, and electrode heterostructure on battery relevant electrochemistry

2016 ◽  
Vol 3 (1) ◽  
pp. 26-40 ◽  
Author(s):  
Andrea M. Bruck ◽  
Christina A. Cama ◽  
Cara N. Gannett ◽  
Amy C. Marschilok ◽  
Esther S. Takeuchi ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Lithium Ion Batteries ◽  
Crystallite Size ◽  
Critical Role ◽  
Lithium Ion ◽  
Composite Electrodes ◽  
Electroactive Materials ◽  
Nanocrystalline Iron

The whole versus the sum of its parts; contributions of nanoscale iron-containing materials to the bulk electrochemistry of composite electrodes.

Lithium Intercalation Mechanism and Critical Role of Structural Water in Layered H2V3O8 High-Capacity Cathode Material for Lithium-Ion Batteries

2022 ◽  
Author(s):  
Alois Kuhn ◽  
Juan Carlos Pérez-Flores ◽  
Jesús Prado-Gonjal ◽  
Emilio Morán ◽  
Markus Hoelzel ◽  
...  
Keyword(s):  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Critical Role ◽  
High Capacity ◽  
Lithium Ion ◽  
Lithium Intercalation ◽  
Structural Water
Sign in / Sign up

Export Citation Format

Share Document