Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nonlinear Double-Capacitor Model for Rechargeable Batteries: Modeling,
  Identification and Validation   This paper proposes a new equivalent circuit model for rechargeable batteries
by modifying a double-capacitor model proposed in [1]. It is known that the
original model can address the rate capacity effect and energy recovery effect
inherent to batteries better than other models. However, it is a purely linear
model and includes no representation of a battery's nonlinear phenomena. Hence,
this work transforms the original model by introducing a
nonlinear-mapping-based voltage source and a serial RC circuit. The
modification is justified by an analogy with the single-particle model. Two
parameter estimation approaches, termed 1.0 and 2.0, are designed for the new
model to deal with the scenarios of constant-current and variable-current
charging/discharging, respectively. In particular, the 2.0 approach proposes
the notion of Wiener system identification based on maximum a posteriori
estimation, which allows all the parameters to be estimated in one shot while
overcoming the nonconvexity or local minima issue to obtain physically
reasonable estimates. An extensive experimental evaluation shows that the
proposed model offers excellent accuracy and predictive capability. A
comparison against the Rint and Thevenin models further points to its
superiority. With high fidelity and low mathematical complexity, this model is
beneficial for various real-time battery management applications.

23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
16
The categories of this paper are: stat
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
17
The categories of this paper are: q-fin
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph