Electrical Measurement Arrangement for Secondary Alkali Solid Electrolyte Batteries

Simple SummaryContent extracted from patent full text and abstract with AI.

This invention provides an advanced measurement setup specifically designed for secondary alkali solid-electrolyte batteries (such as lithium, sodium, or potassium solid-state batteries). The novel system includes two non-conductive cell case halves that securely hold a battery cell and allow various electrical feed-throughs. Specially designed, force-adjustable contact elements and current collectors ensure reliable and flexible electrical connections to the battery electrodes, supporting efficient and reproducible measurement of cell properties, including with reference electrodes. The device is easy to assemble, disassemble, and clean, and supports high reproducibility and flexible configuration for detailed research and development of solid-state battery cells.

Use CasesContent extracted from patent full text and abstract with AI.

• Laboratory research and characterization of solid-state batteries (lithium, sodium, potassium batteries)
• Quality control and benchmarking for battery manufacturers
• Testing and analyzing battery degradation and failure mechanisms using reference electrodes
• Rapid prototyping and parameter testing for new battery chemistries by R&D departments
• Educational demonstrations in advanced electrochemistry courses
• Integration into glove box setups for research under inert atmospheres

BenefitsContent extracted from patent full text and abstract with AI.

• Enables fast, reproducible, and reliable measurement of solid-state battery electrical properties
• Supports flexible configurations with multiple or different types of electrodes (including reference electrodes)
• Reduces measurement errors and contact failures due to even mechanical force distribution and adjustable contacts
• Minimizes mechanical damage to delicate battery cells during measurement
• Simple to assemble and disassemble, saving time and reducing complexity
• Facilitates rapid thermal cycling and temperature control during tests
• Requires fewer components and seals, making cleaning and maintenance easier
• Improves measurement accuracy by ensuring uniform pressure and contact to uneven battery surfaces

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Inventors & Applicants

Patent Abstract

The invention relates to a measuring assembly for secondary alkali solid-electrolyte batteries, comprising: two electrically non-conductive cell body halves, wherein both the cell body halves have at least one feed-through and one cell body half has at least three feed-throughs, wherein both cell body halves form a receiving space for receiving a solid-electrolyte battery cell formed of at least one anode, a cathode and a solid electrolyte; an electrically conductive retaining element for each feed-through; an electrical contact element for each retaining element, wherein the electrical contact element is designed to change its length according to the force acting on the element; and two flat current collectors having electrically conductive and electrically non-conductive regions, wherein at least one of the current collectors is designed to form at least three separate electrically conductive connections between the contact elements and an electrode of the solid-electrolyte battery cell. The invention also relates to the use of the measuring assembly for determining the electrical properties of secondary alkali solid-electrolyte battery cells.