Testing a Lithium Ion Battery as a Pulsed Power Source

Chen, Y.Y.; Sitzman, A.

doi:10.1109/ppc.2005.300701

Cited by 12 publications

(4 citation statements)

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“…In some cases, depending on the application, the delivered power density has also been increased. For example, the Institute for Advanced Technology at the University of Texas worked with Saft America to create Li-ion cell designs that have high energy capability [9]. Recent studies have shown that repeated pulses can be obtained at high currents [10].…”

Section: Pulsed Batteriesmentioning

confidence: 99%

Pulsed Power Options for Large EM Launchers

McNab¹

2015

IEEE Trans. Plasma Sci.

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Large electromagnetic launchers require multigigawatt (GW) power levels and mega-ampere currents to be supplied at multikilovolts during the launch of a high-speed projectile. Power systems that operate under these conditions are not readily available and expert development is therefore needed to design, assemble, and operate them safely. The options available for energy storage and GW power delivery are discussed. Some of the larger systems that have been built are described and their features discussed.Index Terms-Electromagnetic (EM) launching power supplies, energy storage, pulsed power systems, railgun power supplies, railguns.

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Section: Pulsed Batteriesmentioning

confidence: 99%

Pulsed Power Options for Large EM Launchers

McNab¹

2015

IEEE Trans. Plasma Sci.

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“…However, little documented research exists on how the same cells perform when they are discharged at rates well in excess of their rated values (10s to 100s of C), in a pulsed manner at high pulsed frequencies (10s of kHz). Shrestha et al [14] and Chen et al [15] have shown that high power electrochemical cells can source currents at high rates, up to a few 1000C, in the form of short pulses lasting about a tenth of a second. In her efforts, Chen developed two different versions of a low impedance load on which to evaluate the pulsed characteristics of high power cells, shown in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

The Impact of High Pulsed Loading on the Fatigue of Electrochemical Energy Storage Devices

2013

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UT Arlington is researching the impact high pulsed loading has on high power electrochemical energy storage devices. Fundamental effects on aging due to high pulsed loading are being investigated by studying the capacity fade and changes in the cells electrochemical impedance [1]. Experiments have been performed in which a 3Ah LiNixCoyAl1-x-yO2 cell is discharged at rates as high as 83C (250 A) in a 10 kHz pulsed fashion for 140s. A 1C recharge procedure is used between discharge cycles. The experimental results obtained when cycling at elevated rates are compared to results obtained from a second identical cell which is charged using a 1C constant current (CC) - constant voltage (CV) procedure and discharged at a constant 1C rate. This paper describes the experiments performed and shows the impact high pulsed loading has on the aging and capacity fade of a high power lithium-ion battery after fifty cycles have been performed.

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“…The aging studies have typically considered the operation of the cell at currents roughly equal to its rated C value and at either rated or slightly elevated temperatures. However, as the power densities of the cells have increased, the ability of the cells to deliver currents several to hundreds of times their rated C value has become a reality [4,10,11,12]. For those unfamiliar with batteries, the C rating of a cell represents the continuous current that it is able This work was supported by the US Office of Naval Research (ONR) under award number N00014-11-1-0659.…”

Section: Introductionmentioning

confidence: 99%

“…Using the stand, it has been shown that high currents in excess of a few kA can be extracted from new high power electrochemical cells for pulsed durations in the tens of milliseconds [10,11,12]. However, it is unclear how this type of elevated rate discharge affects the cell's long term performance and lifetime as they are cycled in this high current fashion repeatedly.…”

Section: Introductionmentioning

confidence: 99%

Development of a power electronic test stand for the elevated rate recharge of electrochemical energy storage devices

Wetz

Novak

Shrestha

2012

2012 Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC)

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There is a high desire to recharge electrochemical energy storage devices, such as rechargeable batteries, supercapacitors, and lithium-ion capacitors, at a faster rate. However, recharging at an elevated rate is traditionally thought of as being catastrophic to the lifetime of the devices. Research has been performed charging batteries at few times the cell's rated C value in a steady state application with findings that the recharge time can be significantly reduced [1]. New research in this area is being conducted at the University of Texas at Arlington. The aim of the research is to understand the charge rate limitations of the devices mentioned above, when the elevated charge is applied in a pulsed fashion. The effect these types of elevated recharge rates have on the fundamental material properties inside the cells is being researched as well. This paper describes the development of a power electronic based test stand that can be used to transfer charge from a larger battery storage system into an individual cell using pulsed currents as high as a few kA. The rationale behind the experiments, the experimental setup developed, and some of the research progress made thus far will be discussed.

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Testing a Lithium Ion Battery as a Pulsed Power Source

Cited by 12 publications

References 0 publications

Pulsed Power Options for Large EM Launchers

Pulsed Power Options for Large EM Launchers

The Impact of High Pulsed Loading on the Fatigue of Electrochemical Energy Storage Devices

Development of a power electronic test stand for the elevated rate recharge of electrochemical energy storage devices

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