Artificial Interphases Enable the Use of Silicon Anodes for High-Energy Vehicle Batteries (Final Technical Report)
- Storagenergy Technologies, Inc., Salt Lake City, UT (United States)
- Univ. of Colorado, Boulder, CO (United States)
In this project, we aim to utilize a highly collaborative approach between industrial and University (Storagenergy and CU boulder), to develop high-performance full cells by using silicon anodes developed at CU Boulder, paired with NMC cathode developed at Storagenergy for the vehicular application. With the collaboration between CU Boulder and Storagenergy, we aimed to develop high-performance lithium-ion battery (LIB) full-cells by using surface-stabilized graphite–silicon blend (Gr–Si) negative electrodes paired with NMC cathode for electric vehicle applications. The intrinsically high reactivity of the surface of Si is known to contribute to continual irreversible capacity loss and low cycling efficiency, which causes significant difficulty in maintaining cycling capacity in the full-cell configuration. Our collaborator, Dr. Chunmei Ban, at CU Boulder has extensive research experience focusing on stabilizing silicon anodes by developing artificial interphases deposited by molecular layer deposition. Here, we are developing artificial interphase to stabilize the surface of Gr–Si blend anodes, to enable reversible cycling Si anodes in full cells. During the project period, research at Storagenergy and CU Boulder has been focusing on stabilizing silicon anodes by developing artificial interphases for silicon anodes, cathode evaluation, full-cell assembly and characterization.
- Research Organization:
- Storagenergy Technologies, Inc., Salt Lake City, UT (United States); Univ. of Colorado, Boulder, CO (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Engineering & Technology. Office of Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) Programs
- DOE Contract Number:
- SC0019867
- OSTI ID:
- 1661754
- Type / Phase:
- SBIR (Phase I)
- Report Number(s):
- DOE-Storagenergy-DE-SC0019867
- Resource Relation:
- Related Information: N/A
- Country of Publication:
- United States
- Language:
- English
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