A solid-state battery is provided with a solid electrolyte membrane-protecting member, which compensates for a difference in area between an electrode and a solid electrolyte membrane, and thus the end portion of the solid electrolyte membrane is supported by the solid electrolyte membrane-protecting member. Even when the solid electrolyte membrane has low mechanical strength or has low shape stability due to high flexibility, the end portion of the solid electrolyte membrane may be supported by the solid electrolyte membrane-protecting member, and it is possible to prevent damage of the end portion of the solid electrolyte membrane. The present disclosure also relates to a method for manufacturing the solid-state battery. According to the method, the solid electrolyte membrane-protecting member may be disposed in the portion corresponding to a difference in area between the electrode and the solid electrolyte membrane through a simple and convenient process.

A solid-state battery is provided with a solid electrolyte membrane-protecting member, which compensates for a difference in area between an electrode and a solid electrolyte membrane, and thus the end portion of the solid electrolyte membrane is supported by the solid electrolyte membrane-protecting member. Even when the solid electrolyte membrane has low mechanical strength or has low shape stability due to high flexibility, the end portion of the solid electrolyte membrane may be supported by the solid electrolyte membrane-protecting member, and it is possible to prevent damage of the end portion of the solid electrolyte membrane. The present disclosure also relates to a method for manufacturing the solid-state battery. According to the method, the solid electrolyte membrane-protecting member may be disposed in the portion corresponding to a difference in area between the electrode and the solid electrolyte membrane through a simple and convenient process.

Provided herein are a variety of electrolytes, electrolyte systems, and separator systems, as well as batteries comprising the same and precursors thereof. In specific embodiments are semi-solid or gel electrolytes, particularly those prepared using (i) a cross-linkable polysilsesquioxane with high ionic conductivity and (ii) a liquid electrolyte (e.g., ionic liquid).

A battery includes a housing and multiple electrode core assemblies disposed in the housing. Two adjacent electrode core assemblies are connected in series, each of the electrode core assemblies includes an encapsulation film and one electrode core, and the one electrode core is disposed in an accommodating cavity formed by the encapsulation film. Each of the electrode core assemblies includes a first electrode and a second electrode protruding out of the encapsulation film for leading out a current, a first electrode of a first electrode core assembly is connected to a second electrode of the a second electrode core assembly of the two adjacent electrode core assemblies, a gap between the two adjacent electrode core assemblies is filled with an insulating material to form an insulating spacer between the two adjacent electrode core assemblies, and a connection part of the two adjacent electrode core assemblies is arranged in the insulating spacer.

A battery includes a housing and multiple electrode core assemblies disposed in the housing. Two adjacent electrode core assemblies are connected in series, each of the electrode core assemblies includes an encapsulation film and one electrode core, and the one electrode core is disposed in an accommodating cavity formed by the encapsulation film. Each of the electrode core assemblies includes a first electrode and a second electrode protruding out of the encapsulation film for leading out a current, a first electrode of a first electrode core assembly is connected to a second electrode of the a second electrode core assembly of the two adjacent electrode core assemblies, a gap between the two adjacent electrode core assemblies is filled with an insulating material to form an insulating spacer between the two adjacent electrode core assemblies, and a connection part of the two adjacent electrode core assemblies is arranged in the insulating spacer.

A lithium ion-conductive solid electrolyte including a freestanding inorganic vitreous sheet of sulfide-based lithium ion conducting glass is capable of high performance in a lithium metal battery by providing a high degree of lithium ion conductivity while being highly resistant to the initiation and/or propagation of lithium dendrites. Such an electrolyte is also itself manufacturable, and readily adaptable for battery cell and cell component manufacture, in a cost-effective, scalable manner. An automated machine based system, apparatus and methods assessing and inspecting the quality of such vitreous solid electrolyte sheets, electrode sub-assemblies and lithium electrode assemblies can be based on spectrophotometry and can be performed inline with fabricating the sheet or web (e.g., inline with drawing of the vitreous Li ion conducting glass) and/or with the manufacturing of associated electrode sub-assemblies and lithium electrode assemblies and battery cells.

Electrolyte-infiltrated composite electrode includes an electrolyte component consisting of a polymer matrix with ceramic nanoparticles embedded in the matrix to form a networking structure of electrolyte. Suitable ceramic nanoparticles have the basic formula Li.sub.7La.sub.3Zr.sub.2O.sub.12 (LLZO) and its derivatives such as Al.sub.xLi.sub.7-xLa.sub.3Zr.sub.2-y-zTa.sub.yNb.sub.zO.sub.12 where x ranges from 0 to 0.85, y ranges from 0 to 0.50 and z ranges from 0 to 0.75, wherein at least one of x, y and z is not equal to 0. The networking structure of the electrolyte establishes an effective lithium-ion transport pathway in the electrode and strengthens the contact between electrode layer and solid-state electrolyte resulting in higher lithium-ion electrochemical cell's cycling stability and longer battery life. Sold-state electrolytes incorporating the ceramic particles demonstrate improved performance. Large dimensional electrolyte-infiltrated composite electrode sheets can be used in all solid-state lithium electrochemical pouch cells which can be assembled into battery packs.

A lithium ion-conductive solid electrolyte including a freestanding inorganic vitreous sheet of sulfide-based lithium ion conducting glass is capable of high performance in a lithium metal battery by providing a high degree of lithium ion conductivity while being highly resistant to the initiation and/or propagation of lithium dendrites. Such an electrolyte is also itself manufacturable, and readily adaptable for battery cell and cell component manufacture, in a cost-effective, scalable manner.

A lithium ion-conductive solid electrolyte including a freestanding inorganic vitreous sheet of sulfide-based lithium ion conducting glass is capable of high performance in a lithium metal battery by providing a high degree of lithium ion conductivity while being highly resistant to the initiation and/or propagation of lithium dendrites. Such an electrolyte is also itself manufacturable, and readily adaptable for battery cell and cell component manufacture, in a cost-effective, scalable manner.

A lithium metal electrode is manufactured according to a process that bonds a layer of lithium metal to a conductive substrate on one side and to an ion selective membrane on another side. The lithium metal electrode may be integrated into lithium metal batteries. The inventive lithium metal electrode may be manufactured by a process involving electrolysis of lithium ions from an aqueous lithium salt solution through an ion selective membrane, carried out under a blanketing atmosphere having no more than 10 ppm of non-metallic elements, the electrolysis being performed at a constant current between about 10 mA/cm.sup.2 and about 50 mA/cm.sup.2, and wherein the constant current is applied for a time between about 1 minute and about 60 minutes.