Empirical evaluation of the improvement of battery output when coupled with a capacitor bank
- Resource Type
- Authors
- Paul Wolfgramm; Allen Anderson; William Infantolino; Stephen R. Cain; Edward Tasillo
- Source
- Journal of Power Sources. 268:640-644
- Subject
- Supercapacitor
Battery (electricity)
Engineering
Renewable Energy, Sustainability and the Environment
business.industry
Electrical engineering
Energy Engineering and Power Technology
Power factor
Lithium-ion battery
law.invention
Capacitor
Hardware_GENERAL
law
ComputerSystemsOrganization_SPECIAL-PURPOSEANDAPPLICATION-BASEDSYSTEMS
Automotive battery
Electrical and Electronic Engineering
Physical and Theoretical Chemistry
Current (fluid)
Lead–acid battery
business
- Language
- ISSN
- 0378-7753
It has been demonstrated experimentally that a capacitor bank when connected in parallel with a battery increases the energy output by mitigating the effects of high current spikes in the load. High current draws are taken from the capacitor bank which can furnish a small amount of energy quickly. The battery which can furnish substantial energy over a period of time then recharges the capacitor bank during times of decreased load. With a current square wave (P–P of 1.5 to 2× the average), capacitors afforded an increase in the retrievable energy of approximately 8% for a lead acid battery, 40% for a rechargeable lithium ion battery, and 46% for a non-rechargeable lithium ion battery.