Phase separating electrode materials - chemical inductors?

Zelič, Klemen (avtor), Mele, Igor (avtor), Bhowmik, Arghya (avtor), Katrašnik, Tomaž (avtor)

We unreveal mechanistic background of the presence of chemical inductive effects in phase separating ion intercalation energy storage materials, in particular lithium iron phosphate (LFP) and lithium titanate oxide (LTO), by applying a detailed phase field model. These materials feature fast (de)intercalation and slow diffusion relaxation phenomena, which are prerequisites for observing such inductive effects. The results are based on the mechanistic model and analytical considerations, which show that all equilibrium states that lie within the miscibility gap of the phase-separating material exhibit a strong inductive response in the low frequency part of the spectrum. We also explain why such inductive effects are not observed outside the miscibility gap. In this letter, we present the first mechanistic justification for the previously reported experimental observation of electrode level inductance in impedance measurements at low currents.

• Jezik: Angleški jezik
• Ključne besede: li-ion batteries, electrode materials, aktive particle, quazi 3D model, porous electrode model
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2023
• Št. strani: Str. 489-494
• Številčenje: Vol. 56
• PID: 20.500.12556/RUL-144241
• UDK: 621.313/.314
• ISSN pri članku: 2405-8297
• DOI: 10.1016/j.ensm.2023.01.008
• COBISS.SI-ID: 140743427
• Datum objave v RUL: 06.02.2023

Gradivo je del revije

• Naslov: Energy storage materials
• Založnik: Elsevier
• ISSN: 2405-8297
• COBISS.SI-ID: 6688026

Licence

• Licenca: CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
• Opis: Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: litij ionske baterije, elektrodni materiali, aktivni delci, kvazi 3D model, model porozne elektrode

Projekti

• Financer: EC - European Commission
• Program financ.: H2020
• Številka projekta: 957189
• Naslov: Battery Interface Genome - Materials Acceleration Platform
• Akronim: BIG-MAP

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P2-0401
• Naslov: Energetsko strojništvo