NDLI: Parallel battery configuration for coin cell operated wireless sensor networks

Content Provider	IEEE Xplore Digital Library
Author	Emami, S.
Copyright Year	2013
Description	Author affiliation: Adv. Technol. Lab., Samsung Res. America, San Jose, CA, USA (Emami, S.)
Abstract	Coin cell batteries have been used in low current application in the past. Due to their low cost and small size, they are an attractive option for use in wireless sensor networks. The rated capacity of a coin cell batter is not achievable. In fact, the achievable life time could be significantly shorter mainly due to characteristics of the draw currents in wireless applications. Measurements have revealed the dependence of coin cell battery capacity on characteristics of the current draw. Here we model lithium CR2032 coin cell battery capacity. It is shown that significant battery life time overestimation could result, if the capacity dependencies are ignored. Parallel coin cell battery configuration is proposed as a simple alternative to single battery case. It is demonstrated that parallel coin cell battery configuration results in longer battery life compared to the single battery case. The battery life improvement factor is shown to be a function of both the current draw and the functional end point voltage. The number of batteries in the parallel configurations influences the results and performance saturation occurs when the number of parallel batteries exceeds three. Based on our estimates, battery improvement factors of up to 600% are obtained.
Starting Page	2317
Ending Page	2320
File Size	173838
Page Count	4
File Format	PDF
ISBN	9781467362351
ISSN	21669570
DOI	10.1109/PIMRC.2013.6666531
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-08
Publisher Place	UK
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Batteries Wireless sensor networks Battery charge measurement Wireless communication Lithium Polynomials Current measurement
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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