Influence of Different Alginate and Carboxymethyl Cellulose Binders on Moisture Content, Electrode Structure, and Electrochemical Properties of Graphite‐Based Anodes for Lithium‐Ion Batteries

Jagau, René; Huttner, Fabienne; Mayer, Julian K.; Cavers, Heather; Scheffler, Sören; Brokmann, Julian; Kwade, Arno

doi:10.1002/ente.202200871

Cited by 3 publications

(1 citation statement)

References 56 publications

(99 reference statements)

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“…However, with the solid amounts utilized, long times of 90-120 min are required to ensure its correct dispersion along the NMP solvent. Next, the conductive carbon is introduced, and the mixing velocity is increased, as higher shear-rate will be necessary for a homogeneous dispersion [29]. However, it is of high importance to control and analyse the velocity-time parameters.…”

Section: Slurry Processing: Hc and Ac-li 2 C 4 Omentioning

confidence: 99%

Roll-to-roll double side electrode processing for the development of pre-lithiated 80 F lithium-ion capacitor prototypes

Arnaiz,

Canal-Rodríguez,

Martin-Fuentes

et al. 2023

J. Phys. Energy

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Lithium-ion capacitors (LICs) show promise to help lithium-ion batteries (LIBs) and electrical double layer capacitors (EDLCs) in giving response to those applications that require an energy storage solution. However, pre-lithiation is a major challenge that needs to be tackled in order to develop efficient and long-lasting LIBs and LICs. In this work, we report for the first time the scale-up and utilization of sacrificial salts (dilithium squarate, Li2C4O4) as a pre-lithiation strategy in a LIC prototype fabricated in a pilot line. The synthesis of the sacrificial salt is scaled-up to produce 1 kg and is later incorporated in the positive electrode during the slurry formulation. After in-depth process optimization, 12 meter of a double side electrode are fabricated, achieving a high mass loading of 5.5 mg cm−2 for the HC negative electrode, and 14 mg cm−2 for the positive electrode accounting both the activated carbon and the dilithium squarate. On account of the satisfactory mechanical and electrochemical behaviour of the electrodes, multilayer pouch cell LIC prototypes are fabricated reaching 80 F each. Pre-lithiation is completed during the first ten cycles and after the required gas exhaustion, electrochemical performance of prototypes is also satisfactory. Moreover, fabricated pouch cells overcome a float test of 1600 h at 50 °C showing a capacitance retention of 84.3%. These results give clear evidence for the potential use of this strategy in real products and can foster research in the field to promote pre-lithiation by means of sacrificial salts as the final solution to the pre-lithiation step, both for LIBs and LICs.

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Section: Slurry Processing: Hc and Ac-li 2 C 4 Omentioning

confidence: 99%

Roll-to-roll double side electrode processing for the development of pre-lithiated 80 F lithium-ion capacitor prototypes

Arnaiz,

Canal-Rodríguez,

Martin-Fuentes

et al. 2023

J. Phys. Energy

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Direct recycling of lithium-ion battery production scrap – Solvent-based recovery and reuse of anode and cathode coating materials

Ahuis,

Aluzoun,

Keppeler

et al. 2024

Journal of Power Sources

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Review of the Mechanistic and Structural Assessment of Binders in Electrodes for Lithium-Ion Batteries

Yoon,

Behera,

Lim

et al. 2024

International Journal of Energy Research

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With the continual increase in CO2 levels and toward a sustainable society, developing high-performance lithium-ion batteries (LIBs) is crucial. A suitable electrode design is the key to enhancing the quality of battery cells (e.g., cycle retention characteristics and rate capabilities), and the binder plays an important role in providing sufficient adhesion between the active material, conductive agent, and current collector. Despite significant advances in the development of novel binder materials and solutions that can be employed as anode and cathode materials, careful investigations and summaries of the assessment methods for binder materials remain lacking. In this review, we examine the different analyses used to assess the quality of binder materials and how they help in assessing the quality of the electrode design. In addition, future perspectives on binder assessment are presented, which can be applied to future research directed toward binder development for advanced LIBs or post-LIBs.

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Influence of Different Alginate and Carboxymethyl Cellulose Binders on Moisture Content, Electrode Structure, and Electrochemical Properties of Graphite‐Based Anodes for Lithium‐Ion Batteries

Cited by 3 publications

References 56 publications

Roll-to-roll double side electrode processing for the development of pre-lithiated 80 F lithium-ion capacitor prototypes

Roll-to-roll double side electrode processing for the development of pre-lithiated 80 F lithium-ion capacitor prototypes

Direct recycling of lithium-ion battery production scrap – Solvent-based recovery and reuse of anode and cathode coating materials

Review of the Mechanistic and Structural Assessment of Binders in Electrodes for Lithium-Ion Batteries

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