Analiza požarne varnosti litij ionskih akumulatorjev

magistrsko delo

Peter Kočman (Author), Simon Schnabl (Mentor), Klementina Zupan (Thesis defence commission member), Barbara Novosel (Thesis defence commission member), Robert Dominko (Co-mentor)

Abstract

Litij ionski akumulator je vrsta polnilnega akumulatorja, ki se pogosto uporablja kot vir energije v prenosni elektroniki in električnih vozilih. Varnostne analize, ki zadevajo litij ionske akumulatorje, upravičujejo nezgodni dogodki v preteklih letih in želja po vsesplošni uporabi v transportnem sektorju. Napredek znanstvenih spoznanj glede preučevanja načinov odpovedi akumulatorjev in izjemni tehnološki preboj v računalniški znanosti, sedaj omogočajo učinkovito analiziranje odpovednih mehanizmov, ki pomagajo oblikovalcem pri razvoju varnejših akumulatorjev. V nadaljevanju delo ponuja pregled varnostnih analiz in simulacij, izvedenih na področju varnostnih analiz, s poudarkom na nevarnosti vžiga/eksplozije in z njima povezanih nezgodnih dogodkov. Razpravlja se prav tako o napredku simulacijskih modelov in z modeli povezano fiziko ter o močni soodvisnosti simulacij z demonstracijo stopnje varnosti litij ionskih akumulatorjev. V perspektivo so prav tako postavljene zdajšnje omejitve in priložnosti. Glede na tržne trende se predvideva, da bo varnost še vedno eden izmed glavnih omejitvenih faktorjev pri iskanju sprejemljivega kompromisa glede splošne učinkovitosti in stroškov litij ionskih polnilnih akumulatorjev v prihodnosti. Domneve smo potrdili z neodvisnim prebojnim testiranjem akumulatorjev, je pokazalo ranljivost akumulatorjev in visoko stopnjo tveganja na področju požarne varnosti.

Keywords

požarna varnost;litij ionski akumulatorji;galvanski člen;obvladovanje tveganja;električna preobremenitev;toplotni pobeg;magistrska dela;

Data

Language:	Slovenian
Year of publishing:	2021
Typology:	2.09 - Master's Thesis
Organization:	UL FKKT - Faculty of Chemistry and Chemical Technology
Publisher:	[P. Kočman]
UDC:	621.355:614.84(043.2)
COBISS:	73949699
Views:	450
Downloads:	97
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Assessment of lithium-ion batteries fire safety
Secondary abstract:	A lithium-ion battery is a type of rechargeable battery commonly used as a power source in portable electronics and electric vehicles. Safety analysis related to lithium-ion batteries is used for accidents in recent years and the desire to be used in the transportation sector. Advances in scientific knowledge related to the study of types of battery failure and an extreme technological breakthrough in computer science now enable effective analysis of the resistance mechanisms that contribute to the design of the latest batteries. The continuation of this work provides an overview of safety analyses and simulations performed to illustrate failure mechanisms, highlighting the hazards of ignitions/explosions and associated accidental events. The progress of simulation models, model-related physics, and the strong interdependence between the simulations and the demonstration of safety are discussed. Current limitations and opportunities have also been brought into focus. In terms of market trends, safety is still seen as one of the main constraints to find acceptable trade-offs in the overall efficiency and cost of lithium-ion batteries in the future. The assumptions were confirmed by independent penetration tests of batteries, which showed the vulnerability of the batteries and the potential fire risk.
Secondary keywords:	fire safety;lithium-ion battery;
Type (COBISS):	Master's thesis/paper
Study programme:	1000378
Embargo end date (OpenAIRE):	1970-01-01
Thesis comment:	Univ. v Ljubljani, Fak. za kemijo in kemijsko tehnologijo, smer Tehniška varnost
Pages:	48 str.
ID:	13133574