High‐Energy‐Density Metal–Oxygen Batteries: Lithium–Oxygen Batteries vs Sodium–Oxygen Batteries

Advanced Energy Materials

Lee

et al. 2020

Self Cite

The surface of solid catalysts is one of the most important factors where the interface with reaction products governs the reaction kinetics. Herein, the crystal phase of palladium–copper nanoparticles (PdCu NPs) is controlled to modulate their surface atomic arrangement, which will govern the growth dynamics of discharge products on their surfaces and thus the catalytic performances in non‐aqueous lithium–oxygen (Li‐O2) batteries. First‐principles calculations and experimental validations reveal that homogeneous nucleation and distribution of discharge products are observed on the surface of body‐centered cubic PdCu NPs, promoting the oxygen reduction/evolution reaction (ORR/OER) activities in Li‐O2 batteries. However, the agglomerates formed on the surface of its face‐centered cubic homologue deteriorates ORR/OER activities, which worsen the battery performances. For the first time, this work theoretically and experimentally demonstrates how the crystal phase modulation regulates the nucleation behaviors and growth dynamics of discharge products for ORR/OER.

Section: Introductionmentioning

confidence: 99%

Regulating the Catalytic Dynamics Through a Crystal Structure Modulation of Bimetallic Catalyst

Park

Advanced Energy Materials

Lee

et al. 2020

Self Cite

“…A breakthrough in increasing the battery energy density requires developing new electrochemical reactions. [83][84][85][86][87][88][89] Along this line, new battery systems have been intensively pursued in recent years, including Li metal batteries, [90][91][92][93][94][95][96] metal-sulfur batteries, 97-104 metal-air (or metal-oxygen) batteries, [105][106][107][108][109] and batteries involving monovalent (eg, Na and K) [110][111][112][113][114][115] or multivalent (eg, Mg, Ca, Zn, and Al) elements/cations. 116 Among various new battery systems, Li-sulfur, Li metal, and Li-oxygen batteries have gained great attraction due to their exceptionally high energy density (Figure 11).…”

Section: Increasing Energy Densitymentioning

confidence: 99%

A review of rechargeable batteries for portable electronic devices

Zhao

Yuan

et al. 2019

InfoMat

860

396

Portable electronic devices (PEDs) are promising information‐exchange platforms for real‐time responses. Their performance is becoming more and more sensitive to energy consumption. Rechargeable batteries are the primary energy source of PEDs and hold the key to guarantee their desired performance stability. With the remarkable progress in battery technologies, multifunctional PEDs have constantly been emerging to meet the requests of our daily life conveniently. The ongoing surge in demand for high‐performance PEDs inspires the relentless pursuit of even more powerful rechargeable battery systems in turn. In this review, we present how battery technologies contribute to the fast rise of PEDs in the last decades. First, a comprehensive overview of historical advances in PEDs is outlined. Next, four types of representative rechargeable batteries and their impacts on the practical development of PEDs are described comprehensively. The development trends toward a new generation of batteries and the future research focuses are also presented.

“…As shown in Figure , most metal anodes in these non‐Li metal–O 2 batteries can offer wide voltage windows and high specific capacities, and thus satisfactory energy densities to meet various requirements. Specially, these metal–O 2 batteries with low‐cost alkali metals (e.g., Na and K) demonstrate comparable volumetric energy density to that of Li–O 2 batteries, while those metal–O 2 batteries with some cheap and safe multivalence elements (e.g., Mg, Zn, and Al) even exhibit superior theoretical volumetric energy densities to the Li‐based ones, which offers great potential for future large‐scale applications.…”

Section: Non‐li Metal–o2 Batteries Versus Li–o2 Batteriesmentioning

confidence: 99%

Toward Promising Cathode Catalysts for Nonlithium Metal–Oxygen Batteries

Mei

Liao

Advanced Energy Materials

et al. 2019

119

The success of Li–air/O2 batteries has brought extensive attention to the development of various promising non‐Li metal–O2 batteries, such as Zn–O2, Al–O2, Mg–O2 batteries, etc., which have exhibited unique advantages, such as low production cost, high energy density, and much enhanced safety. The versatile non‐Li metal–O2 batteries provide a better opportunity for meeting the practical requirements for sustainable energy supplies in various applications. A high‐performance cathode in non‐Li metal–O2 batteries that can effectively trigger both oxygen reduction and evolution reactions and thus boost the overall battery performance is of great research interest. In this article, a comprehensive review on the development of Li‐free metal–O2 batteries and particularly focusing on the oxygen catalytic cathodes for both primary and secondary non‐Li metal–O2 batteries is carefully performed. The current challenges and potential solutions are also outlined and proposed. Through carefully selecting and rationally designing promising catalytic cathodes, a series of non‐Li metal–oxygen batteries toward practical energy storage applications are highly anticipated.