What question did this study set out to answer?

To improve capacity retention and extend cycle life in high-energy anode-free lithium metal batteries using an epitaxial induced plating current collector.

January 14, 2021Advanced Energy Materials

Epitaxial Induced Plating Current‐Collector Lasting Lifespan of Anode‐Free Lithium Metal Battery

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Authors

LLLiangdong LinNingbo University LSLiumin SuoChinese Academy of Sciences YHYong‐Sheng HuNational Natural Science Foundation of China

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Implication

Laboratory study demonstrates extended cycling lifespan in anode-free lithium metal cells via an epitaxial current collector, highlighting a path toward long-lasting high-energy batteries.

Key Points

To improve capacity retention and extend cycle life in high-energy anode-free lithium metal batteries using an epitaxial induced plating current collector.
Engineered an epitaxial induced plating current collector (E-Cu) with a functional layer that enables lithium storage via an alloying mechanism.
Tested electrochemical behavior in E-Cu/Li asymmetric cells and evaluated full-cell capacity retention in anode-free NCM811/E-Cu pouch cells under lean electrolyte conditions (electrolyte-to-capacity ratio of 2 g Ah⁻¹).
Initial coulombic efficiency of the E-Cu/Li asymmetric cell increased from 93.24% to 98.24%.
Capacity retention in the anode-free NCM811/E-Cu pouch cell improved from 66% to 84% at an energy density of 420 Wh kg⁻¹ with limited electrolyte addition.
The alloying layer facilitated rapid lithium-ion surface diffusion to promote block-like epitaxial lithium growth and the formation of a lithium fluoride-rich solid electrolyte interphase.

Cite This Study

Lin et al. (2021) studied this question.

synapsesocial.com/papers/69d8a54518b0ca7f91d18a7d https://doi.org/10.1002/aenm.202003709

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Implication

Laboratory study demonstrates extended cycling lifespan in anode-free lithium metal cells via an epitaxial current collector, highlighting a path toward long-lasting high-energy batteries.

Epitaxial Induced Plating Current‐Collector Lasting Lifespan of Anode‐Free Lithium Metal Battery

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Member takes

Implication

Key Points

Cite This Study

Epitaxial Induced Plating Current‐Collector Lasting Lifespan of Anode‐Free Lithium Metal Battery

Discussion

Member takes

Implication

Key Points

Cite This Study

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