• 专利标题:   Anode-free solid-state battery used for electrochemical energy storage devices as lithium-ion batteries, comprises charging battery extracts anode elements from cathode layer and discharging battery returns anode elements, gelled solid-state electrolyte layer from current collector to cathode layer.
  • 专利号:   US2023063684-A1, CN115732737-A, DE102022112483-A1
  • 发明人:   VERBRUGGE M W, QUE X, SU Q, LIU H, LU Y, LI Z, ZHE L
  • 专利权人:   GM GLOBAL TECHNOLOGY OPERATIONS INC, GM GLOBAL TECHNOLOGY OPERATIONS INC, GM GLOBAL TECHNOLOGY OPERATIONS INC
  • 国际专利分类:   H01M010/0525, H01M010/0565, H01M004/505, H01M004/525, H01M010/04, H01M010/052, H01M010/0562, H01M010/0585, H01M010/056, H01M004/131, H01M004/134, H01M004/136, H01M004/1391, H01M004/1395, H01M004/1397, H01M004/62, H01M004/66, H01M050/102
  • 专利详细信息:   US2023063684-A1 02 Mar 2023 H01M-010/0565 202324 English
  • 申请详细信息:   US2023063684-A1 US458903 27 Aug 2021
  • 优先权号:   US458903

▎ 摘  要

NOVELTY - Anode-free solid-state battery comprises cathode layer (16) has host cathode material (18) includes transient anode elements; bare current collector (14); solid-state electrolyte layer (20) defining voids and arranged between bare current collector and cathode layer, gel situated with solid-state electrolyte and cathode layer, configured to permeate voids in solid-state electrolyte layer to form gelled solid-state electrolyte layer, coat host cathode material, facilitate ionic conduction of anode elements between cathode layer, solid-state electrolyte layer, and bare current collector; where charging of battery (10) extracts anode elements from cathode layer, diffuses anode elements via gelled solid-state electrolyte layer, and reversibly deposits anode elements on bare current collector to form transient anode material; and discharging of battery returns anode elements, via gelled solid-state electrolyte layer, from current collector to cathode layer. USE - Anode-free solid-state battery used for electrochemical energy storage devices as lithium-ion batteries and used to power such diverse items as toys, consumer electronics, and motor vehicles. ADVANTAGE - The anode-free solid-state battery refers to as rechargeable batteries, employ specific chemistries permits such batteries to be repeatedly recharged and reused, offers economic, environmental and ease-of-use benefits compared to disposable batteries, has longer shelf life, lower self-discharge rate, simpler packaging and thermal management, ability to operate with a wider temperature window, and may reduce the battery complexity and cost. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method of fabricating an anode-free solid-state battery, involves arranging adjacent one another, solid-state electrolyte layer defining voids combined with gel precursor including solvent. The gel precursor permeates voids; and cathode layer has host cathode material including transient anode elements; forming gel with solid-state electrolyte layer and cathode layer to form gelled solid-state electrolyte layer and coat host cathode material; and arranging against gelled solid-state electrolyte layer, bare current collector characterized by absence of non-transitory anode material and configured to accept transient anode elements during battery charging, where, formed gel facilitates ionic conduction of anode elements between cathode layer, solid-state electrolyte layer, and bare current collector; charging of battery extracts anode elements from cathode layer, diffuses anode elements gelled solid-state electrolyte layer, and reversibly deposits anode elements on bare current collector to form transient anode material; and discharging of battery returns anode elements, via the gelled solid-state electrolyte layer, from the current collector to the cathode layer. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of anode-free solid-state battery. 10Battery 14bare current collector 16cathode layer 18host cathode material 20solid-state electrolyte layer