- Title
- Discharge mechanism of the heat treated electrolytic manganese dioxide cathode in a primary Li/MnO₂ battery: an in-situ and ex-situ synchrotron X-ray diffraction study
- Creator
- Dose, Wesley M.; Sharma, Neeraj; Donne, Scott W.
- Relation
- Journal of Power Sources Vol. 258, p. 155-163
- Publisher Link
- http://dx.doi.org/10.1016/j.jpowsour.2014.01.102
- Publisher
- Elsevier BV
- Resource Type
- journal article
- Date
- 2014
- Description
- In this work the discharge mechanism for heat treated electrolytic manganese dioxide (HT-EMD) in a primary lithium battery is investigated. In-situ and ex-situ synchrotron X-ray diffraction is utilized to study the structural evolution with respect to material utilization (LixMnO₂). At a 4.3 mA g⁻¹ discharge rate, HT-EMD undergoes a simultaneous two-phase transformation and solid solution reaction for 0
0.34) formed in the two phase process. At higher discharge rates (17.1 mA g⁻¹), no evidence for the new lithiated phase is observed, suggesting the discharge mechanism is rate dependent. These findings represent a key step in understanding the mechanistic behaviour of HT-EMD in primary battery systems, which in turn will assist in optimizing battery performance characteristics and broadening possible electronic applications. - Subject
- lithium battery; in-situ synchrotron X-ray diffraction; manganese dioxide; heat treatment
- Identifier
- http://hdl.handle.net/1959.13/1303646
- Identifier
- uon:20698
- Identifier
- ISSN:0378-7753
- Language
- eng
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