Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Solid-electrolyte interphases (SEI) in nonaqueous aluminum-ion batteries   Nonaqueous aluminum-ion batteries are an interesting emerging energy storage
technology, offering a plethora of advantages over existing grid energy storage
solutions. Carbonaceous and graphitic materials are an appealing cathode
material in this system, thanks to their low cost and excellent rate
capabilities. The phenomenon of poor Coulombic efficiency in the first cycle,
however, is a known issue among some types of carbons, the reasons for which
are yet to be fully understood. In this work, we propose that such processes
are caused by the formation of a solid-electrolyte interphase, in a similar
fashion to graphite anodes in lithium-ion batteries. Using electrospun carbon
nanofibers as a model material with tunable crystallinity, the cause of such
phenomena was found to be linked to the presence of surface defects in the
cathode material, and was further amplified by high surface area. The simple
use of a binder polymer, however, helps mitigating the issue by shielding
surface defects from direct contact with the electrolyte.

17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
9
The categories of this paper are: nlin
18
The categories of this paper are: econ
29
The categories of this paper are: funct-an
25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int
32
The categories of this paper are: atom-ph