Journal ArticleDOI
Reclaiming Inactive Lithium with a Triiodide/Iodide Redox Couple for Practical Lithium Metal Batteries.
Chengbin Jin,Xue-Qiang Zhang,Xue-Qiang Zhang,Ouwei Sheng,Shu-Yu Sun,Li-Peng Hou,Peng Shi,Bo-Quan Li,Jia-Qi Huang,Xinyong Tao,Qiang Zhang +10 more
TLDR
In this paper, a triiodide/iodide (I3- /I- ) redox couple initiated by stannic iodide (SnI4 ) is demonstrated to reclaim inactive Li.Abstract:
High-energy-density lithium (Li) metal batteries suffer from a short lifespan owing to apparently ceaseless inactive Li accumulation, which is accompanied by the consumption of electrolyte and active Li reservoir, seriously deteriorating the cyclability of batteries. Herein, a triiodide/iodide (I3- /I- ) redox couple initiated by stannic iodide (SnI4 ) is demonstrated to reclaim inactive Li. The reduction of I3- converts inactive Li into soluble LiI, which then diffuses to the cathode side. The oxidation of LiI by the delithiated cathode transforms cathode into the lithiation state and regenerates I3- , reclaiming Li ion from inactive Li. The regenerated I3- engages the further redox reactions. Furthermore, the formation of Sn mitigates the corrosion of I3- on active Li reservoir sacrificially. In working Li | LiNi0.5 Co0.2 Mn0.3 O2 batteries, the accumulated inactive Li is significantly reclaimed by the reversible I3- /I- redox couple, improving the lifespan of batteries by twice. This work initiates a creative solution to reclaim inactive Li for prolonging the lifespan of practical Li metal batteries.read more
Citations
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Journal ArticleDOI
Modification of Nitrate Ion Enables Stable Solid Electrolyte Interphase in Lithium Metal Batteries.
Li-Peng Hou,Nana Yao,Jin Xie,Peng Shi,Shubin Sun,Cheng-Bin Jin,Quanbing Liu,Bo Li,Xue-Qiang Zhang,Qian-Kui Zhang +9 more
TL;DR: In this paper , a modification of nitrate ion (NO3-) is proposed and validated to improve the homogeneity of SEI in practical LMBs, where NO3 is connected to an ether-based moiety to form isosorbide dinitrate (ISDN) to break the resonance structure of NO3- and improve the reducibility.
Journal ArticleDOI
Dead lithium formation in lithium metal batteries: A phase field model
TL;DR: In this paper , a phase field model was proposed to describe the lithium stripping process with dead lithium formation, which can contribute general principles on rational design of lithium metal batteries. But, there is little mechanism understanding on lithium dendrite growth during lithium plating and the dead lithium (main component of inactive lithium) formation during lithium stripping.
Journal ArticleDOI
Inhibiting intercrystalline reactions of anode with electrolytes for long-cycling lithium batteries
Peng Shi,Zhonghua Fu,Mingyue Zhou,Xiang Chen,Nana Yao,Li-Peng Hou,Chen-Zi Zhao,Bo Li,Jia-Qi Huang,Xue-Qiang Zhang,Qian-Kui Zhang +10 more
TL;DR: An aluminum-based heteroatom-concentrated grain boundary (Al-HCGB), where Al atoms concentrate at grain boundary, was designed to inhibit the intercrystalline reactions as discussed by the authors .
Journal ArticleDOI
Bifunctional LiI additive for poly(ethylene oxide) electrolyte with high ionic conductivity and stable interfacial chemistry
TL;DR: LiI− anions offer a strong electrostatic interaction with hydrogen atoms on PEO chains (HPEO) and forming massive I−H bonds that cross-link PEO chain, decrease crystallinity of PEO, and thus improve Li+ interchain transport as mentioned in this paper .
Journal ArticleDOI
Advances in carbon materials for stable lithium metal batteries
TL;DR: In this paper , a review summarizes the advances in carbon materials used as hosts, electrolyte additives, and coating layers in stabilizing Li metal batteries (LMBs) in terms of their structural and chemical properties.
References
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Journal ArticleDOI
Reviving the lithium metal anode for high-energy batteries
TL;DR: The current understanding on Li anodes is summarized, the recent key progress in materials design and advanced characterization techniques are highlighted, and the opportunities and possible directions for future development ofLi anodes in applications are discussed.
Journal ArticleDOI
Toward Safe Lithium Metal Anode in Rechargeable Batteries: A Review.
TL;DR: This review presents a comprehensive overview of the lithium metal anode and its dendritic lithium growth, summarizing the theoretical and experimental achievements and endeavors to realize the practical applications of lithium metal batteries.
Journal ArticleDOI
Pathways for practical high-energy long-cycling lithium metal batteries
Jun Liu,Zhenan Bao,Yi Cui,Eric J. Dufek,John B. Goodenough,Peter G. Khalifah,Qiuyan Li,Bor Yann Liaw,Ping Liu,Arumugam Manthiram,Y. Shirley Meng,Venkat R. Subramanian,Venkat R. Subramanian,Michael F. Toney,Vilayanur V. Viswanathan,M. Stanley Whittingham,Jie Xiao,Wu Xu,Jihui Yang,Xiao-Qing Yang,Ji-Guang Zhang +20 more
TL;DR: Liu et al. as mentioned in this paper discuss crucial conditions needed to achieve a specific energy higher than 350 Wh kg−1, up to 500 Wh kg −1, for rechargeable Li metal batteries using high-nickel-content lithium nickel manganese cobalt oxides as cathode materials.
Journal ArticleDOI
Status and challenges in enabling the lithium metal electrode for high-energy and low-cost rechargeable batteries
TL;DR: In this article, the state of research and commercial efforts in terms of four key performance parameters, and identify additional performance parameters of interest are summarized, and the use of limited lithium (≤30μm) to ensure early identification of technical challenges associated with stable and dendrite-free cycling and a more rapid transition to commercially relevant designs.