| PAN/cellulose |
porosity ∼
66.5%;
electrolyte uptake ∼ 238%; and σ ∼ 1.99 mS.cm–1
|
the
addition of 15 wt.%
cellulose caused an increase in the porosity from 60 to 66.5%, due
to the formation of finer fibers; in addition, the enhanced porosity
caused an enhancement in the electrolyte uptake from 193 to 238%;
the observed increase in the porosity and electrolyte uptake led to
easier transferring of the Li+ ions and improved the Li+ ion conduction. |
Dong et al.132
|
| |
|
|
|
| PAN/CA/boehmite |
porosity ∼
82%; electrolyte
uptake ∼ 707%; and σ ∼ 1.694 mS.cm–1
|
the proposed structure
showed
a higher porosity rate compared with the pristine PAN, due to the
fabrication of finer fibers; also, higher porosity and great wettability
of the boehmite and CA caused superior electrolyte uptake, as well
as greater ionic conduction. |
Na Yang et al.133
|
| |
|
|
|
| poly d,l-lactide/CNC |
porosity ∼ 67.19%;
and electrolyte uptake ∼ 1100% |
high affinity of the CNC
to the ions caused a significant increase in the wettability and electrolyte
uptake; so, the addition of CNC caused obtaining a capacity retention
of higher than 95% after 50 cycles at 1 C rate. |
Laezza et al.134
|
| |
|
|
|
| PEO/lignocellulose/P(VDF-TrFE) |
porosity ∼ 86%; electrolyte
uptake ∼ 440%; and σ ∼ 7.04 mS.cm–1
|
the proposed separator
exhibited
647% higher electrolyte uptake than the Celgard commercial separator,
which could be assigned to the superior porosity percentage; the ion
conductivity was also enhanced in the designed structure compared
to that of the commercial one, linking with the reduced contact angle
due to the interaction between polymer polar groups and the liquid
electrolyte Li+ ions. |
Bicy et al.135
|
| |
|
|
|
| cellulose/carboxylated
polyimide |
porosity
∼ 78%; electrolyte
uptake ∼ 638%; and σ ∼ 0.51 mS.cm–1
|
mechanical strength
was
enhanced through the addition of cellulose, due to an increase in
the solution viscosity and so the formation of fibers with larger
diameters; the prepared structure could maintain 88% of the electrolyte
after 100 min at ambient temperature, which was significantly higher
than the PP (∼20%); frequent H-bong donating groups in the
suggested network could provide numerous channels for feasible transferring
of the Li+ ions. |
Deng et al.136
|
