Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Towards Rechargeable Zinc-Air Batteries with Aqueous Chloride
  Electrolytes   This paper presents a combined theoretical and experimental investigation of
aqueous near-neutral electrolytes based on chloride salts for rechargeable
zinc-air batteries (ZABs). The resilience of near-neutral chloride electrolytes
in air could extend ZAB lifetime, but theory-based simulations predict that
such electrolytes are vulnerable to other challenges including pH instability
and the unwanted precipitation of mixed zinc hydroxide chloride products. In
this work, we combine theory-based simulations with experimental methods such
as full cell cycling, operando pH measurements, ex-situ XRD, SEM, and EDS
characterization to investigate the performance of ZABs with aqueous chloride
electrolytes. The experimental characterization of near-neutral ZAB cells
observes the predicted pH instability and confirms the composition of the final
discharge products. Steps to promote greater pH stability and control the
precipitation of discharge products are proposed.

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The categories of this paper are: atom-ph
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The categories of this paper are: q-alg
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The categories of this paper are: astro-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: solv-int
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The categories of this paper are: acc-phys
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The categories of this paper are: cond-mat
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The categories of this paper are: nucl-ex
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The categories of this paper are: adap-org
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The categories of this paper are: hep-lat
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The categories of this paper are: mtrl-th
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The categories of this paper are: math-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: q-bio
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The categories of this paper are: math
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The categories of this paper are: hep-th