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- W2918808110 abstract "The demand for high specific energy is the challenge for battery technology due to the advance in renewable energy to solve the environmental issues from the usage of fossil fuels energy. The Li-S battery(LSB) is one of the candidates; competing with Li-ion battery with higher theoretical specific energy(Sheng S. Zhang, 2013). In addition, the practical usage of sulfur due to its nontoxic nature and low cost, which has a significant advantage to the environment. However, there are practical limitations with low sulfur utilisation and poor cycle life. The aim of this thesis project is to improve the cycle performance of LSB by optimising the electrolyte to sulfur ratio (E/S ratio).The methodology of this project includes;1. the preparation of sulfur cathodes,2. optimization of different volume of electrolytes according to designated E/S ratios,3. battery assembly4. and battery testingThe results obtained from the galvanostatic charge/discharge tests proved that at very low (around 43mLg-1) and very high E/S ratio (120 and 143mLg-1), the maximum specific capacity of the LSB is relatively low. At certain amount of the E/S ratio (between 43 to 85 mLg-1), the maximum specific capacity is increasing. This is due to different concentration of PS in the electrolyte which led to different utilisation of sulfur and also capacity fading in the LSB performance. A significant progress has been achieved in understanding the effect of E/S ratio in LSB. However, more effort and attention are needed to further improve the optimisation of E/S ratio in LSB." @default.
- W2918808110 created "2019-03-11" @default.
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- W2918808110 date "2017-10-27" @default.
- W2918808110 modified "2023-09-27" @default.
- W2918808110 title "Electrolyte to sulfur ratio in lithium sulfur battery" @default.
- W2918808110 hasPublicationYear "2017" @default.
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