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High-Energy All-Solid-State Organic–Lithium Batteries Based on Ceramic Electrolytes

Journal Article · · ACS Energy Letters
 [1];  [2];  [2];  [2];  [2];  [3];  [3];  [2];  [3];  [2]
  1. Univ. of Houston, TX (United States); University of Houston
  2. Univ. of Houston, TX (United States)
  3. Rice Univ., Houston, TX (United States)
+ Show Author Affiliations
Recent studies have identified unique properties of organic battery electrode materials such as moderate redox potentials and mechanical softness which are uniquely beneficial for all-solid-state batteries based on ceramic electrolytes. Here, we further explore the promise of organic materials and demonstrate a sulfide electrolyte- based organic-lithium battery with a specific energy of 828 Wh kg–1, rivaling the state-of- the-art of all-solid-state batteries. Two innovation steps are responsible for the accomplishment. First, the combination of lithium anode and the high-capacity cathode material pyrene-4,5,9,10-tetraone ensures a high theoretical specific energy. Second, the microstructure of the organic cathode is optimized with the introduction of cryomilling, a technique common to processing soft materials but not familiar to electrode fabrication. The cathode material utilization increases to 99.5% as a result, up from the 55–89% previously reported for ceramic electrolyte-based solid-state organic batteries. In conclusion, the improvement highlights the special requirements of solid-state organic electrodes for microstructural engineering while preserving the chemical integrity of components.
Research Organization:
Univ. of Houston, TX (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Vehicle Technologies Office
Grant/Contract Number:
EE0008234; EE0008864
OSTI ID:
1737467
Journal Information:
ACS Energy Letters, Journal Name: ACS Energy Letters Vol. 6; ISSN 2380-8195
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

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25 ENERGY STORAGE
Batteries
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Electrolytes
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