Advancing Structural Battery Composites: Robust Manufacturing for Enhanced and Consistent Multifunctional Performance

Siraj, Mohammad Siam; Tasneem, Samia; Carlstedt, David; Duan, Shanghong; Johansen, Marcus; Larsson, Carl; Xu, Johanna; Liu, Fang; Edgren, Fredrik; Asp, Leif E.

doi:10.1002/aesr.202300109

Cited by 13 publications

(2 citation statements)

References 21 publications

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“…Extending the range of electric transport demands energy storage systems to become lighter without compromising performance and durability. Structural batteries propose a solution based on multifunctionality by incorporating the energy storage function of lithium (Li)-ion batteries into carbon fibre reinforced composites and effectively reducing the required mass of the system [1][2][3][4][5][6][7][8]. In a conventional Li-ion battery, graphite is used as negative electrode material due to its low cost and ability to reversibly host Li ions.…”

Section: Introductionmentioning

confidence: 99%

Unravelling Lithium Distribution in Carbon Fibre Electrodes for Structural Batteries with Atom Probe Tomography

Johansen,

Singh,

et al. 2023

Preprint

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Section: Introductionmentioning

confidence: 99%

Unravelling Lithium Distribution in Carbon Fibre Electrodes for Structural Batteries with Atom Probe Tomography

Johansen,

Singh,

et al. 2023

Preprint

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“…4,11,12 Structural batteries store electrochemical energy within the structural elements of an object and thus increase the active energy-storing weight of the object while reducing the dead weight. 1,[13][14][15][16][17] By achieving even small amounts of energy storage in each structural battery, the holistic effect on the overall structure could lead to significant range enhancement and extended power-on-demand. 12,13,17 Also, adoption of structural batteries in military and defense, space exploration and subsea operations is dependent on the battery's operation at low temperatures.…”

mentioning

confidence: 99%

Fast-Charging Carbon Fiber Structural Battery Electrodes Using an Organic Polymer Active Material

Oka,

Thakur,

Wang

et al. 2024

J. Electrochem. Soc.

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Structural batteries require electrodes with integrated energy storage and load-bearing properties. Adoption of structural batteries can lead to mass and volume savings in electrified transportation and aerospace applications by storing energy within the object’s structural elements. However, to date, active materials investigated in structural batteries exhibit poor rate capabilities at higher C-rates and even worse performance at lower temperatures due to diffusion limitations. Organic radical polymers are promising alternatives because they possess fast-charging properties and good cycling stability. In this work, we integrate an organic radical polymer with carbon fiber (CF) fabric, in which the polymer acts as the active cathode material and the CF fabric possesses excellent tensile strength, modulus and electronic conductivity. At 20 °C, the structural cathodes exhibited a reversible capacity of 67 mAh g−1 at 1C-rate and an 88% capacity retention at 25C-rate. Further, these structural electrodes retained more than 50% of their performance at −10 °C (vs 20 °C). These electrodes were further examined in a full cell containing a graphite-based anode, demonstrating a pathway for utilizing redox-active polymer-based active materials in structural and fast-charging organic batteries.

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Unveiling the Multifunctional Carbon Fiber Structural Battery

Chaudhary,

Xu,

Xia

et al. 2024

Advanced Materials

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Structural batteries refer to the multifunctional device capable of both storing electrical energy and bearing mechanical loads concurrently. In this context, carbon fibers emerge as a compelling choice of material and serve dual purpose by storing energy and providing stiffness and strength to the battery. Previous investigation has demonstrated proof‐of‐concept of functional positive electrodes against metallic lithium in structural battery electrolyte. Here, an all‐carbon fiber‐based structural battery is demonstrated utilizing the pristine carbon fiber as negative electrode, lithium iron phosphate (LFP)‐coated carbon fiber as positive electrode, and a thin cellulose separator. All components are embedded in structural battery electrolyte and cured to provide rigidity to the battery. The energy density of structural battery is enhanced by use of the thin separator. The structural battery composite demonstrates an energy density of 30 Wh kg−1 and cyclic stability up to 1000 cycles with ≈100% of Coulombic efficiency. Remarkably, the elastic modulus of the all‐fiber structural battery exceeds 76 GPa when tested in parallel to the fiber direction – by far highest till date reported in the literature. Structural batteries have immediate implication in replacing structural parts of electric vehicles while reducing the number of conventional batteries. Thus, offering mass savings to future electric vehicles.

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Advancing Structural Battery Composites: Robust Manufacturing for Enhanced and Consistent Multifunctional Performance

Cited by 13 publications

References 21 publications

Unravelling Lithium Distribution in Carbon Fibre Electrodes for Structural Batteries with Atom Probe Tomography

Unravelling Lithium Distribution in Carbon Fibre Electrodes for Structural Batteries with Atom Probe Tomography

Fast-Charging Carbon Fiber Structural Battery Electrodes Using an Organic Polymer Active Material

Unveiling the Multifunctional Carbon Fiber Structural Battery

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