Consequences of Combinatorial Studies of Positive Electrodes for Li-ion Batteries

McCalla, Eric

doi:10.1007/978-3-319-05849-8

Cited by 11 publications

(36 citation statements)

References 81 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…4,14 Furthermore, as cobalt content increases lithium loss diminishes, even for small combinatorial samples. 14 Thus, the compositions shown in Figure 5 are the worse-case scenarios for lithium loss in this system, but even here the loss is manageable within the single phase region (i.e., between the two red lines the arrows typically result in a lithium loss of no more than 5%).…”

Section: ■ Results and Discussionmentioning

confidence: 98%

“…At 20% cobalt content, the hexagonal layered singlephase region for regular-cooled samples did not extend to the Mn axis as it was found to contain layered−layered phase separation, which corroborates previous results. 4,15 The single-phase cubic spinel region for regular-cooled samples was found to exist at lower Mn contents in every cobalt slice ternary when compared to the corresponding quenched single-phase region. This result was attributed to the oxygen deficiency of quenched samples that favored the formation of lower oxygen content structures during heating, such as cubic spinel or layered structures.…”

Section: ■ Conclusionmentioning

confidence: 95%

“…3,4,13,14 A Cartesian Pixsys solution-processing robot was used to dispense arrays of combinatorial samples onto alumina plates (Pi-Kem, 96%) that were previously coated with stearic acid (Aldrich, 96%). Ammonium bicarbonate (Alfa Aesar, 98%) was added in order to induce coprecipitation of mixedmetal carbonates in each sample.…”

Section: ■ Experimental Proceduresmentioning

confidence: 99%

See 2 more Smart Citations

Combinatorial Study of the Li–Ni–Mn–Co Oxide Pseudoquaternary System for Use in Li–Ion Battery Materials Research

et al. 2015

Self Cite

View full text Add to dashboard Cite

Combinatorial synthesis has proven extremely effective in screening for new battery materials for Li-ion battery electrodes. Here, a study in the Li-Ni-Mn-Co-O system is presented, wherein samples with nearly 800 distinct compositions were prepared using a combinatorial and high-throughput method to screen for single-phase materials of high interest as next generation positive electrode materials. X-ray diffraction is used to determine the crystal structure of each sample. The Gibbs' pyramid representing the pseudoquaternary system was studied by making samples within three distinct pseudoternary planes defined at fractional cobalt metal contents of 10%, 20%, and 30% within the Li-Ni-Mn-Co-O system. Two large single-phase regions were observed in the system: the layered region (ordered rocksalt) and cubic spinel region; both of which are of interest for next-generation positive electrodes in lithium-ion batteries. These regions were each found to stretch over a wide range of compositions within the Li-Ni-Mn-Co-O pseudoquaternary system and had complex coexistence regions existing between them. The sample cooling rate was found to have a significant effect on the position of the phase boundaries of the single-phase regions. The results of this work are intended to guide further research by narrowing the composition ranges worthy of study and to illustrate the broad range of applications where solution-based combinatorial synthesis can have significant impact.

show abstract

Section: ■ Results and Discussionmentioning

confidence: 98%

Section: ■ Conclusionmentioning

confidence: 95%

Section: ■ Experimental Proceduresmentioning

confidence: 99%

See 1 more Smart Citation

Combinatorial Study of the Li–Ni–Mn–Co Oxide Pseudoquaternary System for Use in Li–Ion Battery Materials Research

et al. 2015

Self Cite

View full text Add to dashboard Cite

show abstract

“…The low‐temperature LiCoO 2 of spinel‐like structure was obtained at the low calcination temperature about 400 °C. However, 400 °C is not enough to react the lithium carbonate with coating materials, and it has been reported that temperatures should be increased to 600 °C to remove the lithium carbonate . However, upon increasing temperature to >800 °C, high temperature LiCoO 2 was obtained with the formation of solid‐solution phase on the particle surface by diffusion of transition metal between coating layer and bulk material .…”

mentioning

confidence: 99%

Enhancing Interfacial Bonding between Anisotropically Oriented Grains Using a Glue‐Nanofiller for Advanced Li‐Ion Battery Cathode

et al. 2016

View full text Add to dashboard Cite

Formation of a glue-nanofiller layer between grains, consisting of a middle-temperature spinel-like Lix CoO2 phase, reinforces the strength of the incoherent interfacial binding between anisotropically oriented grains by enhancing the face-to-face adhesion strength. The cathode treated with the glue-layer exhibits steady cycling performance at both room-temperature and 60 °C. These results represent a step forward in advanced lithium-ion batteries via simple cathode coating.

show abstract

“…We also verify that the design of such intergrown structure requires TM with appropriately selected ionic radius and/or valence state, as well as electronic configuration. As both phases accommodate a vast composition space, given the excellent tolerance for stoichiometry and TM combination in layered and disordered rocksalts 41 , our demonstration opens up immense opportunities in developing high-performance intergrown electrode materials.…”

mentioning

confidence: 99%

Layered-Rocksalt Intergrown Cathode for High-Capacity Zero-Strain Battery Operation

Tong¹,

Li²,

Sun³

et al. 2021

Meet. Abstr.

View full text Add to dashboard Cite

The continuous dependence on high-performance lithium-ion batteries leads to a pressing demand for advanced cathode materials of high energy density along with excellent cycling stability. Here we demonstrate a new concept of layered-rocksalt intergrown structure that harnesses the combined figures of merit from each individual phase, including the high capacity of layered and rocksalt phases, good kinetics of layered oxide and structural advantage of rocksalt phase. Based on this concept, lithium nickel ruthenium oxide of a main layered structure (R-3 m) with intergrown rocksalt (Fm-3 m) is developed, which delivers a high capacity with good rate performance. More importantly, the interwoven rocksalt structure successfully prevents the anisotropic structural change that is typical for the layered oxide, enabling a nearly zero-strain operation upon high-capacity cycling. Furthermore, a general design principle is successfully extrapolated and experimentally verified in a series of compositions. The success of such layered-rocksalt intergrown structure exemplifies a new concept of battery electrode design and opens up a vast space of compositions to develop high-performance intergrown cathodes for advanced energy storage devices.

show abstract

Consequences of Combinatorial Studies of Positive Electrodes for Li-ion Batteries

Cited by 11 publications

References 81 publications

Combinatorial Study of the Li–Ni–Mn–Co Oxide Pseudoquaternary System for Use in Li–Ion Battery Materials Research

Combinatorial Study of the Li–Ni–Mn–Co Oxide Pseudoquaternary System for Use in Li–Ion Battery Materials Research

Enhancing Interfacial Bonding between Anisotropically Oriented Grains Using a Glue‐Nanofiller for Advanced Li‐Ion Battery Cathode

Layered-Rocksalt Intergrown Cathode for High-Capacity Zero-Strain Battery Operation

Contact Info

Product

Resources

About