Abstract:
Sodium energy storage devices employing aspects of both ZEBRA batteries and traditional Na-S batteries can perform better than either battery alone. The hybrid energy storage devices described herein can include a sodium anode, a molten sodium salt catholyte, and a positive electrode that has active species containing sulfur. Additional active species can include a transition metal source and NaCl. As a product of the energy discharge process, Na 2 S x forms in which x is less than three.
Abstract translation:使用ZEBRA电池和传统Na-S电池的钠储能装置可以比单独使用电池的性能更好。 本文所述的混合储能装置可包括钠阳极,熔融钠盐阴极电解液和具有含硫活性物质的正电极。 另外的活性物质可以包括过渡金属源和NaCl。 作为能量放电过程的产物,形成其中x小于3的Na 2 S x。
Abstract:
An energy storage device comprising a cathode comprising: (i) an Fe source; (ii) at least one sulfur species and (iii) NaCl, wherein the mol percent of S is less than 10, based on the total moles of (i), (ii) and (iii).
Abstract:
A new compliant polymer seal and process for sealing sodium conducting energy storage devices and batteries are disclosed. Compliant polymer seals become viscous at the operation temperature which seals cathode and anode chambers and other components together following assembly. Seals can accommodate thermal expansion mismatches between selected components during operation.
Abstract:
Sodium metal-halide energy storage devices utilizing a substituting salt in its secondary electrolyte can operate at temperatures lower than conventional ZEBRA batteries while maintaining desirable performance and lifetime characteristics. According to one example, a sodium metal-halide energy storage device operates at a temperature less than or equal to 200 °C and has a liquid secondary electrolyte having M x Na 1 - y AlCl 4-y H y , wherein M is a metal cation of a substituting salt, H is an anion of the substituting salt, y is a mole fraction of substituted Na and CI, and x is a ratio of y over r, where r is the oxidation state of M. The melting temperature of the substituting salt is less than that of NaCl.
Abstract:
A solid-state lithium ion battery is disclosed. The battery includes an anode containing an anode active material. The battery also includes a cathode containing a cathode active material. The battery further includes a solid-state electrolyte material. The electrolyte material contains a salt or salt mixture with a melting point below approximately 300 degrees Celsius. The battery has an operating temperature of less than about 80 degrees Celsius
Abstract:
A metal-air battery is disclosed. The battery includes a sodium anode and an air cathode. The battery further includes a solid electrolyte. The sodium anode may be a molten sodium anode, and the solid electrolyte may be a beta alumina solid electrolyte. The battery has an operating temperature between 100° C and 200° C.
Abstract:
A dense β"-alumina/zirconia composite solid electrolyte and process for fabrication are disclosed. The process allows fabrication at temperatures at or below 1600 °C. The solid electrolytes include a dense composite matrix of β"-alumina and zirconia, and one or more transition metal oxides that aid the conversion and densification of precursor salts during sintering. The composite solid electrolytes find application in sodium energy storage devices and power grid systems and devices for energy applications.
Abstract:
Sodium battery configurations and a process for fabrication are detailed. The batteries include a solid electrolyte configured with an engineered metallization layer that distributes sodium across the surface of the electrolyte extending the active electrical transfer area of the cathode in electrical contact with the anode during operation. The metallization layer enhances performance, cycling efficiency, and capacity of the batteries.
Abstract:
Electrochemical energy storage devices having a metal anode and a solid-state, metal-ion exchange membrane and are characterized by an interfacial layer between the anode and the membrane, wherein the interfacial layer is a solid solution comprising the metal anode and a metallic interfacial conducting agent.