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Software-Defined Batteries.

Authors :
Badam, Anirudh
Chandra, Ranveer
Dutra, Jon
Ferrese, Anthony
Hodges, Steve
Pan Hu
Meinershagen, Julia
Moscibroda, Thomas
Priyantha, Bodhi
Skiani, Evangelia
Source :
Communications of the ACM; Dec2016, Vol. 59 Issue 12, p111-119, 9p, 6 Diagrams, 2 Charts, 3 Graphs
Publication Year :
2016

Abstract

Different battery chemistries perform better on different axes, such as energy density, cost, peak power, recharge time, longevity, and efficiency. Mobile system designers are constrained by existing technology, and are forced to select a single chemistry that best meets their diverse needs, thereby compromising other desirable features. In this paper, we present a new hardware-software system, called Software Defined Battery (SDB), which allows system designers to integrate batteries of different chemistries. SDB exposes application programming interfaces (APIs) to the operating system, which controls the amount of charge flowing in and out of each battery, enabling it to dynamically trade one battery property for another depending on application and/or user needs. Using microbenchmarks from our prototype SDB implementation, and through detailed simulations, we demonstrate that it is possible to combine batteries which individually excel along different axes to deliver an enhanced collective performance when compared to traditional battery packs. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00010782
Volume :
59
Issue :
12
Database :
Complementary Index
Journal :
Communications of the ACM
Publication Type :
Periodical
Accession number :
120050701
Full Text :
https://doi.org/10.1145/3007179