J
John Wang
Researcher at HRL Laboratories
Publications - 45
Citations - 10596
John Wang is an academic researcher from HRL Laboratories. The author has contributed to research in topics: Battery (electricity) & Lithium. The author has an hindex of 21, co-authored 45 publications receiving 8302 citations. Previous affiliations of John Wang include University of California, Los Angeles & Amazon.com.
Papers
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Patent
Methods and apparatus for sensing the internal temperature of an electrochemical device
TL;DR: In this paper, the internal temperature of an electrochemical device is estimated without a thermocouple, infrared detector, or other auxiliary device to measure temperature, using a temperature-impedance-state of charge relationship.
Journal ArticleDOI
Active lithium replenishment to extend the life of a cell employing carbon and iron phosphate electrodes
John Wang,Souren Soukiazian,Mark W. Verbrugge,Harshad Tataria,Dwaine K. Coates,David S. Hall,Ping Liu +6 more
TL;DR: In this article, the authors describe and implement a method of extending the life of a LiFePO 4 /graphite lithium ion battery by replenishing the lost active lithium during cell operation and concomitant capacity fade.
Journal ArticleDOI
Phase-separated silicon-tin nanocomposites for high capacity negative electrodes in lithium ion batteries
Xingcheng Xiao,John Wang,Ping Liu,Anil K. Sachdev,Mark W. Verbrugge,Haddad Daad B,Michael P. Balogh +6 more
TL;DR: The phase separation-induced nanostructure provides the capability to mitigate the mechanical degradation, by preventing the nucleation and propagation of microcracks during lithiation as discussed by the authors, where the amorphous Si nanoparticles are thermodynamically precipitated out from Si-Sn alloy and embedded within the Sn matrix.
Journal ArticleDOI
Battery State Estimator Based on a Finite Impulse Response Filter
Patent
Electrochemical cell for lithium-based batteries
Xingcheng Xiao,John Wang +1 more
TL;DR: In this article, an electrochemical cell is formed, which includes a non-lithium negative electrode in contact with a lithium ion permeable negative electrode current collector, and a positive electrode disposed in contact to the same collector.