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A novel data-driven...
A novel data-driven method for mining battery open-circuit voltage characterization
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- Chen, Cheng (författare)
- Beijing Inst Technol, Sch Mech Engn, Adv Energy Storage & Applicat AESA Grp, Beijing 100081, Peoples R China.
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- Xiong, Rui (författare)
- Beijing Inst Technol, Sch Mech Engn, Adv Energy Storage & Applicat AESA Grp, Beijing 100081, Peoples R China.
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- Yang, Ruixin (författare)
- Beijing Inst Technol, Sch Mech Engn, Adv Energy Storage & Applicat AESA Grp, Beijing 100081, Peoples R China.
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- Li, Hailong, 1976- (författare)
- Mälardalens universitet,Framtidens energi
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Beijing Inst Technol, Sch Mech Engn, Adv Energy Storage & Applicat AESA Grp, Beijing 100081, Peoples R China Framtidens energi (creator_code:org_t)
- ELSEVIER, 2022
- 2022
- Engelska.
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Ingår i: GREEN ENERGY AND INTELLIGENT TRANSPORTATION. - : ELSEVIER. - 2097-2512 .- 2773-1537. ; 1:1
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Lithium-ion batteries (LiB) are widely used in electric vehicles (EVs) and battery energy storage systems, and accurate state estimation relying on the relationship between battery Open-Circuit-Voltage (OCV) and State-ofCharge (SOC) is the basis for their safe and efficient applications. To avoid the time-consuming lab test needed for obtaining OCV-SOC curves, this study proposes a data-driven universal method by using operation data collected onboard about the variation of OCV with ampere-hour (Ah). To guarantee high reliability, a series of constraints have been implemented. To verify the effectiveness of this method, the constructed OCV-SOC curves are used to estimate battery SOC and State-of-Health (SOH), which are compared with data from both lab tests and EV manufacturers. Results show that a higher accuracy can be achieved in the estimation of both SOC and SOH, for which the maximum deviations are less than 3.0% and 2.9% respectively.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
Nyckelord
- Li -ion battery
- OCV-SOC
- State -of -charge
- State -of -health
- Operation data
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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