Li<sub>2</sub>O<sub>2</sub> as a cathode additive for the initial anode irreversibility compensation in lithium-ion batteries

Bie, Yitian; Yang, Jun; Wang, Jiulin; Zhou, Jingjing; Nuli, Yanna

doi:10.1039/c7cc04646d

Cited by 77 publications

(80 citation statements)

References 27 publications

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“…Currently, it has been commonly considered as a promising strategy by adding the LSMs in the positive electrode. Many LSMs have been reported, such as Li 2 MoO 3 [16], Li 5 FeO 6 [17], Li 6 CoO 4 [18], Li 2 -RuO 3 [19], Li 5 ReO 6 [20], Li 1Àx Ni 1+x O 2 [21], Li (Ni 1ÀxÀy Mn x Co y )O 2 [22], Co/LiF [23], Li 2 O [24], Co/Li 2 S [25], Li 2 O 2 [26], Co/Li 2 O [27] and Li 3 N [28,29]. Among these materials, Li 3 N has been mostly recognized as a promising alternative, because it owns the highest theoretical specific capacity (2308.5 mAh g À1 ), proper decomposing potential and no residues after decomposition.…”

Section: Introductionmentioning

confidence: 99%

DMF stabilized Li3N slurry for manufacturing self-prelithiatable lithium-ion capacitors

Liu

Zhang

et al. 2020

Science Bulletin

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Section: Introductionmentioning

confidence: 99%

DMF stabilized Li3N slurry for manufacturing self-prelithiatable lithium-ion capacitors

Liu

Zhang

et al. 2020

Science Bulletin

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“…However, they proposed that the incongruent particle size between Li 2 O 2 and the NMC111 prohibited any decomposition of the Li 2 O 2 in the desired potential range. Because of this, they added ball-milled NMC111 with a decreased particle size but the ball-milled material showed a poor reversibility and therefore acts as residue after few cycles [121]. Overall, additional research is still necessary to avoid inactive residues.…”

Section: Pre-lithiation By Using Positive Electrode Additivesmentioning

confidence: 99%

“…Another strategy to solve this problem is the use of lithium peroxide (Li 2 O 2 ) mixed into the positive electrode, e.g., as reported by Bie et al for LiNi 1/3 Mn 1/3 Co 1/3 O 2 (NMC111)-based cathodes [121]. Transition metals, like Ni, Co or Mn, which are available in various positive LIB electrode materials, are also known as decomposition catalysts for Li 2 O 2 .…”

Section: Pre-lithiation By Using Positive Electrode Additivesmentioning

confidence: 99%

“…Fourthly, the pre-lithiation agent has to be not only electrochemically stable but also thermally, chemically and mechanically stable after de-lithiation. The investigated additives range from binary compounds, such as Li2S [115,116], Li3N [117,118], LiN3 [119], Li2O [114,120], Li2O2 [121] or LiF [122], to ternary compounds, such as Li5FeO4 [123], Li2NiO2 [124,125], Li6CoO4 [126] or Li2MoO3 [127].…”

Section: Pre-lithiation By Using Positive Electrode Additivesmentioning

confidence: 99%

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Pre-Lithiation Strategies for Rechargeable Energy Storage Technologies: Concepts, Promises and Challenges

et al. 2018

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Abstract:In order to meet the sophisticated demands for large-scale applications such as electro-mobility, next generation energy storage technologies require advanced electrode active materials with enhanced gravimetric and volumetric capacities to achieve increased gravimetric energy and volumetric energy densities. However, most of these materials suffer from high 1st cycle active lithium losses, e.g., caused by solid electrolyte interphase (SEI) formation, which in turn hinder their broad commercial use so far. In general, the loss of active lithium permanently decreases the available energy by the consumption of lithium from the positive electrode material. Pre-lithiation is considered as a highly appealing technique to compensate for active lithium losses and, therefore, to increase the practical energy density. Various pre-lithiation techniques have been evaluated so far, including electrochemical and chemical pre-lithiation, pre-lithiation with the help of additives or the pre-lithiation by direct contact to lithium metal. In this review article, we will give a comprehensive overview about the various concepts for pre lithiation and controversially discuss their advantages and challenges. Furthermore, we will critically discuss possible effects on the cell performance and stability and assess the techniques with regard to their possible commercial exploration.

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“…[27] The uniform composite of Li [62] Similarly, Li 2 O 2 and LiNi 0.33 Co 0.33 Mn 0.33 O 2 (5:1 in weight) composite electrode exhibited an overall charge specific capacity of 1154 mAh g −1 , in which LiNi 0.33 Co 0.33 Mn 0.33 O 2 worked as both the active material and catalyst for the decomposition of Li 2 O 2 . [64] One common issue of these binary lithium compounds is that their decomposition process produces undesirable gases, which are harmful for practical battery application.…”

Section: Donable Lithium-ion Capacity/prelithiation Efficiencymentioning

confidence: 99%

Promises and Challenges of the Practical Implementation of Prelithiation in Lithium‐Ion Batteries

Zhan

Wang

Chen

et al. 2021

Advanced Energy Materials

158

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graphite-based anodes, active lithium from the lithium-containing oxide or phosphate cathode is consumed due to the side reactions during the formation of solid electrolyte interface (SEI) on the anode surface, accompanied by the decomposition of liquid electrolyte. This leads to Coulombic efficiency values lower than 100% in the very initial charge/discharge cycles (e.g., 90%-95% for the first cycle), which appreciably reduces the energy density of LIBs. [10][11][12][13] For the next-generation highenergy-density LIBs, high-capacity anodes (e.g., Si, Sn, and P with alloy reaction mechanism) undergo much more serious side reactions and show much more initial lithium loss (e.g., >15%) than the graphitebased anodes. Moreover, the side reactions of these high-capacity anodes continue to take place for several cycles, sometimes even tens of cycles, before the stabilization of Coulombic efficiency to over 99.9%, due to the large volume change of these materials (e.g., ≈420% for Si, ≈260% for Sn, and ≈300% for P) from lithium-free state to full lithiation state, which leads to large amount of accumulated lithium loss. [14,15] Consequently, the usable lithium-ion capacity and overall energy density of LIBs using these high-capacity anode materials would be significantly decreased.Prelithiation has been widely investigated as a promising strategy to resolve this lithium loss issue and increase the energy density of LIBs. With the specific purpose of compensating for the initial lithium loss in LIBs, prelithiation is conceptually independent from the pretreatment of battery materials or electrodes, and it can be simply regarded as providing additional active lithium using specific prelithiation reagents/ materials or processing to LIBs prior to battery cell cycling. To increase active lithium inside the entire LIBs, prelithiation can be performed on different battery components, cathodes, or anodes, and also at different levels, materials, or electrodes, depending on the prelithiation approaches. Till now, various prelithiation methods have been developed, including electrochemical prelithiation at the electrode level, [16][17][18][19] chemical prelithiation at the materials or electrode level, [20][21][22] prelithiation additives for cathodes and anodes, [8,[23][24][25][26][27] and direct contact/short circuit between a negative electrode and a lithium metal foil. [28][29][30][31] These prelithiation methods with various mechanisms show different prelithiation efficiency or capability in increasing the energy density of LIBs and other effects, and Lithium-ion batteries (LIBs) have changed lives since their invention in the early 1990s. Further improvement of their energy density is highly desirable to meet the increasing demands of energy storage applications. Active lithium loss in the initial charge process appreciably reduces the capacity and energy density of LIBs due to the formation of a solid electrolyte interface (SEI) on the anode surface, especially for Si based anodes in high-energy-density batteries. To solve...

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Li₂O₂ as a cathode additive for the initial anode irreversibility compensation in lithium-ion batteries

Abstract: Commercially available LiO was proposed as a cathode additive in commercialized LiNiCoMnO (NCM) cathodes to offset the initial Li loss. LiO can be decomposed substantially under catalysis of NCM and leaves almost no remnants after the Li compensation.

Cited by 77 publications

References 27 publications

DMF stabilized Li3N slurry for manufacturing self-prelithiatable lithium-ion capacitors

DMF stabilized Li3N slurry for manufacturing self-prelithiatable lithium-ion capacitors

Pre-Lithiation Strategies for Rechargeable Energy Storage Technologies: Concepts, Promises and Challenges

Promises and Challenges of the Practical Implementation of Prelithiation in Lithium‐Ion Batteries

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Li2O2 as a cathode additive for the initial anode irreversibility compensation in lithium-ion batteries

Abstract: Commercially available LiO was proposed as a cathode additive in commercialized LiNiCoMnO (NCM) cathodes to offset the initial Li loss. LiO can be decomposed substantially under catalysis of NCM and leaves almost no remnants after the Li compensation.

Cited by 77 publications

References 27 publications

DMF stabilized Li3N slurry for manufacturing self-prelithiatable lithium-ion capacitors

DMF stabilized Li3N slurry for manufacturing self-prelithiatable lithium-ion capacitors

Pre-Lithiation Strategies for Rechargeable Energy Storage Technologies: Concepts, Promises and Challenges

Promises and Challenges of the Practical Implementation of Prelithiation in Lithium‐Ion Batteries

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Li₂O₂ as a cathode additive for the initial anode irreversibility compensation in lithium-ion batteries