Ultrafast lithium-ion capacitors for efficient storage of energy generated by triboelectric nanogenerators

Self-charging power system for distributed energy: beyond the energy storage unit

“…Later, similar characteristics were reported for Li-S batteries, Li-ion capacitors, flexible LIBs, Na-ion batteries and Zn-air batteries. [118][119][120][121][122] Nevertheless, Li et al reported that the pulsed charging of LIBs is detrimental to the cycling performances due to the pulverization of the electrode particles. 123 Their simulation results showed that the pulsed charging may lead to higher strain and more cracks in the electrode particles.…”

Advanced and Emerging Negative Electrodes for Li-Ion Capacitors: Pragmatism vs. Performance

“…However, the main drawback of LTO remains its poor electronic conductivity. To mitigate this issue, Liang et al synthesized hierarchically structured LTO nanoparticles embedded in mesoporous carbon spheres (n-LTO@MC) to achieve LICs with ultrafast performance [34]. Such material combined with activated carbon (AC) as the counter electrode achieved a LIC cell with high-capacity retention for over 1000 cycles charged/discharged at 100 C and 1000 C, as illustrated in Figure 2.…”

“…For insta spinel Li4Ti5O12 (LTO) was extensively evaluated as an anode material for LICs due t nearly zero strain during Li + insertion/extraction, higher lithiation potential (1.55 V Li + /Li) than graphite (0.07 and 0.1 V vs. Li + /Li) [19], excellent chemical stability and cy bility [33]. However, the main drawback of LTO remains its poor electronic conductiv To mitigate this issue, Liang et al synthesized hierarchically structured LTO nanoparti embedded in mesoporous carbon spheres (n-LTO@MC) to achieve LICs with ultrafast formance [34]. Such material combined with activated carbon (AC) as the counter e trode achieved a LIC cell with high-capacity retention for over 1000 cycles charged/ charged at 100 C and 1000 C, as illustrated in Figure 2.…”

“…Mesopor beads of anatase TiO2 were used as a negative electrode in a fast-charging LIC, with c mercial activated carbon (AC) as the positive electrode with a conventional LIB electro (LP30 : 1 M LiPF6 in ethylene carbonate/dimethyl carbonate (EC : DMC, 50 : 50 v/v)) wisely limiting the charging cutoff voltage of the TiO2 electrode, they could avoid in [35], self-supported LTO nanosheet arrays (LTO-NSA) [36], LTO wrapped in nanoperforated graphene (LTO/H-NPG) [37], LTO supported on pine-needle-like Cu-Co skeletons (Cu-Co/LTO) [38], LTO combined with metallic Co cores (Co/LTO) [39], and LTO deposited on graphene (LTO-G) [40] (filled symbols: specific capacities; hollow symbols: areal capacities). Adapted from [34]. Titanium dioxide (TiO 2 ) polymorphs, particularly anatase and bronze polymorphs, were also examined as potential anode materials for LICs as they benefit from low cost, abundance, environmental benignity, and improved stability [41].…”

Binder-Free Nickel Oxide Lamellar Layer Anchored CoOx Nanoparticles on Nickel Foam for Supercapacitor Electrodes

“…In recent years, energy storage and conversion devices have been attracted great attention to relieve the problems of increasing energy depletion [1][2][3]. Electrochemical devices, such as fuel cells [4], batteries [5], and supercapacitors [6], have proven effective in the practical applications. Among them, supercapacitors are the focus of intense investigations due to their high power density, excellent reversibility, and long cycle life [7][8][9].…”