TY - JOUR
T1 - LiNi1/3Mn1/3Co1/3O2/graphite cells adopting polyolefin and non-polyolefin separators for potential application in industrial manufacturing of energy storage devices
AU - Hamenu, Louis
AU - Mohammed, Latifatu
AU - Attah, Juliet
AU - Abdul-Samii, Rafia
AU - Nyarko, Eric
AU - Monney Hammond, Anna
AU - Ofotsu Tottimeh, Godfred
AU - Koranteng, Joyce
AU - Andoh, Kennedy
AU - Madzvamuse, Alfred
N1 - Publisher Copyright:
© 2023
PY - 2024/1
Y1 - 2024/1
N2 - This study features comprehensive physical and electrochemical properties of different polyolefin and non-polyolefin separators. These separators include polypropylene-polyethylene-polypropylene (PEP), polyethylene (PE), Al2O3-coated polypropylene (C-PP), polyethylene terephthalate (PET), and Silicon carbide mat (SiCmat). The interaction of the different separators and the electrolyte was investigated in terms of ionic conductivity, contact angle test, electrolyte uptake, and electrolyte oxidation. The full cells fabricated using the different separators were also studied for charge–discharge performance, cycle performance, and internal resistance. Results showed that the different separators demonstrated different physical and electrochemical behavior. The non-polyolefin separators registered a small electrolyte contact angle due to their high porosity and structural compatibility with the electrolyte. At 10 C-Rate, the specific capacity is in the order of PET > SiCmat > C-PP > PE > PEP corresponding to 90 mAh/g, 85 mAh/g, 70 mAh/g, 60 mAh/g and 40 mAh/g respectively. After 100 cycles at 1.0 C-rate, the cycle performance is in the order of PE > PET > C-PP > SiCmat > PEP corresponding to 70 %, 65 %, 61 %, 51 % and 49 % respectively. Thermally, PET, C-PP and SiCmat showed better thermal stability compared to the other separators. Therefore, Industrial production that requires high thermal stability may rely on C-PP, PET, or SiCmat, while PET and SiCmat offer better cycle performance and may replace commercially available PE and PEP.
AB - This study features comprehensive physical and electrochemical properties of different polyolefin and non-polyolefin separators. These separators include polypropylene-polyethylene-polypropylene (PEP), polyethylene (PE), Al2O3-coated polypropylene (C-PP), polyethylene terephthalate (PET), and Silicon carbide mat (SiCmat). The interaction of the different separators and the electrolyte was investigated in terms of ionic conductivity, contact angle test, electrolyte uptake, and electrolyte oxidation. The full cells fabricated using the different separators were also studied for charge–discharge performance, cycle performance, and internal resistance. Results showed that the different separators demonstrated different physical and electrochemical behavior. The non-polyolefin separators registered a small electrolyte contact angle due to their high porosity and structural compatibility with the electrolyte. At 10 C-Rate, the specific capacity is in the order of PET > SiCmat > C-PP > PE > PEP corresponding to 90 mAh/g, 85 mAh/g, 70 mAh/g, 60 mAh/g and 40 mAh/g respectively. After 100 cycles at 1.0 C-rate, the cycle performance is in the order of PE > PET > C-PP > SiCmat > PEP corresponding to 70 %, 65 %, 61 %, 51 % and 49 % respectively. Thermally, PET, C-PP and SiCmat showed better thermal stability compared to the other separators. Therefore, Industrial production that requires high thermal stability may rely on C-PP, PET, or SiCmat, while PET and SiCmat offer better cycle performance and may replace commercially available PE and PEP.
KW - Electrochemical property
KW - Lithium-ion-battery
KW - Nonwoven
KW - Physical properties
KW - Polyolefin
KW - Separator membranes
UR - http://www.scopus.com/inward/record.url?scp=85179128885&partnerID=8YFLogxK
U2 - 10.1016/j.elecom.2023.107644
DO - 10.1016/j.elecom.2023.107644
M3 - Article
AN - SCOPUS:85179128885
SN - 1388-2481
VL - 158
JO - Electrochemistry Communications
JF - Electrochemistry Communications
M1 - 107644
ER -