Abstract:The title molecule, C10H4O2S2, is situated on a crystallographic center of inversion. In the crystal, weak hydrogen bonding contributes to the packing of the molecules.
“…The as‐prepared Super P TM ‐modified membrane has a deposited carbon layer of less than 30 μm thick (Figure 1d). The experimentally determined X‐ray diffraction (XRD) pattern closely matches that of the simulated pattern (Supporting Information Figure S3) [31] . The distinct and strong peaks indicate the polycrystallinity of the BDTD.…”
Section: Figuresupporting
confidence: 65%
“…The experimentally determined X-ray diffraction (XRD) pattern closely matches that of the simulated pattern (Supporting Information Figure S3). [31] The distinct and strong peaks indicate the polycrystallinity of the BDTD. Minor deviations observed from the relative peak intensity may be due to the presence of impurities.…”
The achievable cell-level specific energy density of existing aluminum-ion batteries (AIBs) employing AlCl 4À intercalation type cathodes is intrinsically limited by the chloroaluminate anolyte. Towards achieving AIBs with higher specific energy, it is imperative to explore alternative cell chemistries that fundamentally tap the capacity of Al metal anode. Here, we report a benzo[1,2-b:4,5-b']dithiophene-4,8-dione (BDTD) organic electrode material with favorable AlCl 2 + intercalation mecha-nism. This BDTD cathode delivers a specific capacity of 143 mAh g À 1 , and the resulting battery exhibits a well-defined voltage plateau at ~1.2 V. This characteristic voltage plateau is mainly driven by the predominant diffusive charge storage in BDTD cathode, which accounts for up to 85 % of the total charge-storage contribution. As a result, the BDTD cathode demonstrates exceptional self-discharging resistance by recovering > 95 % of its capacity upon 24-h resting.
“…The as‐prepared Super P TM ‐modified membrane has a deposited carbon layer of less than 30 μm thick (Figure 1d). The experimentally determined X‐ray diffraction (XRD) pattern closely matches that of the simulated pattern (Supporting Information Figure S3) [31] . The distinct and strong peaks indicate the polycrystallinity of the BDTD.…”
Section: Figuresupporting
confidence: 65%
“…The experimentally determined X-ray diffraction (XRD) pattern closely matches that of the simulated pattern (Supporting Information Figure S3). [31] The distinct and strong peaks indicate the polycrystallinity of the BDTD. Minor deviations observed from the relative peak intensity may be due to the presence of impurities.…”
The achievable cell-level specific energy density of existing aluminum-ion batteries (AIBs) employing AlCl 4À intercalation type cathodes is intrinsically limited by the chloroaluminate anolyte. Towards achieving AIBs with higher specific energy, it is imperative to explore alternative cell chemistries that fundamentally tap the capacity of Al metal anode. Here, we report a benzo[1,2-b:4,5-b']dithiophene-4,8-dione (BDTD) organic electrode material with favorable AlCl 2 + intercalation mecha-nism. This BDTD cathode delivers a specific capacity of 143 mAh g À 1 , and the resulting battery exhibits a well-defined voltage plateau at ~1.2 V. This characteristic voltage plateau is mainly driven by the predominant diffusive charge storage in BDTD cathode, which accounts for up to 85 % of the total charge-storage contribution. As a result, the BDTD cathode demonstrates exceptional self-discharging resistance by recovering > 95 % of its capacity upon 24-h resting.
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