Novel binder-free carbon anode for high capacity Li-ion batteries

Yarmolich, D.; Odarchenko, Yaroslav; Murphy, Carmen; Petrucco, Enrico; Cookson, James; Yarmolich, Dzianis; Zhao, Teng; Kim, Hyun-Kyung; Kumar, Rupesh; Tomov, Rumen I.

doi:10.1016/j.nanoen.2021.105816

Cited by 12 publications

(8 citation statements)

References 53 publications

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“…So the corresponding volumetric specific capacities of the as‐prepared Si‐DY electrodes are ≈940–1410, 325–487, and 205–307 mAh cm −3 for Li, Na, and K ions under the current density of 50 mA g −1 , respectively, which are lower than the theoretical volume specific capacities but also prominent and better than that of numerous other materials. [ 32–34 ] Capacity values of 2007, 1840, 1615, 1414, and 1225 mAh g −1 have also been obtained at 100, 200, 500, 1000, and 2000 mA g −1 , respectively. Even at a higher current density of 5000 mA g −1 , the reversible capacity of Si‐DY based electrodes still could reach up to 980 mAh g −1 .…”

Section: Resultsmentioning

confidence: 75%

Porous 3D Silicon‐Diamondyne Blooms Excellent Storage and Diffusion Properties for Li, Na, and K Ions

Yang

Song

Zhang

et al. 2021

Advanced Energy Materials

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Regarding different kinds of alkali metal ion batteries such as lithium‐ion battery (LIB), sodium‐ion battery (NIB), and potassium‐ion battery (KIB), since the diameters and properties of these ions are different, there are few materials that are adaptable simultaneously as the anode for these batteries. To achieve the versatile compatibility material, its chemical component and spatial configuration need to be predesigned for possessing abundant storage sites and efficient diffusion paths. Here, a well‐designed 3D material silicon‐diamondyne (Si‐DY) is prepared which is only comprised of butadiyne units and sp3‐hybridized silicon atoms. Owing to the combination of the abundant diyne and various inner channels in the stable diamond‐like skeleton, Si‐DY exhibits excellent storage and diffusion properties for alkali metal ions. The Si‐DY is predicted with an ultrahigh theoretical capacity of 3674, 2810, and 1945 mAh g−1 for lithium, sodium, and potassium ions, respectively. Especially, as the anode of LIB, NIB, and KIB, Si‐DY achieves very high stable practical specific capacities of 2350, 812, and 512 mAh g−1, respectively, as well as an ultra‐long cycling stability. Those outstanding results demonstrate that the as‐designed Si‐DY displays an exceptional potential as the versatile material for energy applications.

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Section: Resultsmentioning

confidence: 75%

Porous 3D Silicon‐Diamondyne Blooms Excellent Storage and Diffusion Properties for Li, Na, and K Ions

Yang

Song

Zhang

et al. 2021

Advanced Energy Materials

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“…[7] Only water can be used as its dispersant, and at the same time, problems such as exothermic reaction and explosion caused by other organic substances that may exist in commercial battery oilbased binders can be avoided. [8] However, due to the inherent characteristics of CMC-Na, it is easy to cause cracks during charging and discharging, and the charging and discharging efficiency and cycle characteristics of some products will be decreased rapidly under the condition of long-term discharge. [9] The ionized sodium ions may exchange reactions with lithium ions on the surface of the carbon anode.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High Performance Study of Lithium Carboxymethylcellulose as Water‐Soluble Binder for Lithium Supplementation in Lithium Batteries

Qiu

et al. 2022

Starch Stärke

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Using cotton and lithium ethoxide as raw materials, carboxymethyl cellulose lithium (CMC‐Li) is synthesized and obtained , and it is used as a water‐based binder in the negative electrode of lithium batteries. The synthesis method of a new type of CMC‐Li is mainly studied as a lithium battery negative material binder, and water is used as a dispersant to assemble a battery and the relevant electrochemical performance is tested. CMC‐Li as a lithium‐replenishing binder for lithium batteries has better electrochemical performance. It can reduce the internal resistance of the battery by about 10%, significantly improve the phenomenon of lithium precipitation, the redox peak is reduced by 50% to 0.20 V, and the impedance is also significantly improved, reducing by more than 50%. Under the same conditions, the cycle period can reach 2500 circles, the lifespan is increased by more than 20%, and the effect of lithium supplementation is obvious. It shows that CMC‐Li as a binder can greatly increase the content of lithium ions in the entire lithium battery, and improve the ion conductivity and ion conduction rate, which further verifies the advantages of lithium‐replenishing binders.

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“…[6][7][8][9]70] However, the energy densities of LICs are not sufficiently high for application in EVs owing to the limited specific capacity of carbonaceous materials (< 600 mAh g À 1 ). [10,11] In addition, the faradaic reactions at the anode feature slower kinetics compared to the non-faradaic reactions at the cathode, resulting in a kinetic imbalance between the unsymmetrical electrodes, which negatively impacts the power density and cycling stability. [12][13][14] Therefore, LIC anode materials with considerably higher specific capacities than carbonaceous materials are necessary for achieving optimized rate capability and cycling stability.…”

Section: Introductionmentioning

confidence: 99%

Black Phosphorus‐Based Lithium‐Ion Capacitor

Jeong

Park

et al. 2022

Batteries & Supercaps

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Black phosphorus (BP) with high theoretical capacity has received attention in lithium‐ion capacitors (LICs). Nevertheless, it is difficult to introduce BP to LICs due to poor rate capability and cycling stability. In this study, we implement BP‐based LIC by introducing BP/C composite with improved above mentions problems. The composite exhibits capacities of 2156 and 1088 mAh g−1 at 0.1 and 5.0 A g−1, respectively, and good cycling stability over 1000 cycles. It is the results of improved electrical conductivity and mitigated volume expansion by embedded structure with BP in amorphous carbon and covalent bonding at interface. The LIC delivers maximum energy and power density of 178 Wh kg−1 at 30 W kg−1 and 3.0 kW kg−1 at 65 Wh kg−1, respectively, and capacitance retention of 85 % after 5000 cycles. The BP has been successfully introduced into LIC and has the ample potential for application in electric vehicles.

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Novel binder-free carbon anode for high capacity Li-ion batteries

Cited by 12 publications

References 53 publications

Porous 3D Silicon‐Diamondyne Blooms Excellent Storage and Diffusion Properties for Li, Na, and K Ions

Porous 3D Silicon‐Diamondyne Blooms Excellent Storage and Diffusion Properties for Li, Na, and K Ions

High Performance Study of Lithium Carboxymethylcellulose as Water‐Soluble Binder for Lithium Supplementation in Lithium Batteries

Black Phosphorus‐Based Lithium‐Ion Capacitor

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