Presentations

Permanent URI for this collection

https://testres.nu.edu.kz/handle/123456789/825

Browse

Browsing Presentations by Author "Bakenov, Zhumabay"

Now showing 1 - 4 of 4
  • Thumbnail Image
    ItemOpen Access
    Analytical modelling of planar potential and current distributions in electrodes of lithium-Ion batteries
    (Analytical modelling of planar potential and current distributions in electrodes of lithium-Ion batteries, 2015-11-11) Adair, D.; Hara, Toru; Massalin, Y.; Ismailov, K.; Bakenov, Zhumabay
    Mathematical modelling can play an important role in the design of a lithium-ion cell in that many design iterations can be performed at relatively little cost. • Electrochemical models are useful for cell design and optimization but can be typically high-order and complex and hence computationally expensive, and, are therefore not suitable for real-time applications. • Much reduced order electrochemical models for lithium-ion cells have been developed, with these type of models more suitable for use with real-time on-board electronic control units. • However, a difficulty with these methods is that the current-voltage behavior for different operating conditions cannot be predicted.
  • No Thumbnail Available
    ItemOpen Access
    Lithium sulfur battery: current status and future prospects
    (2013) Hara, Toru; Konarov, Aishuak; Mentbayeva, Almagul; Kurmanbayeva, Indira; Bakenov, Zhumabay
    This publication has been made within the Sub-project #157-2013 which is funded under the Technology Commercialization Project, supported by the World Bank and the Government of the Republic of Kazakhstan.
  • Thumbnail Image
    ItemOpen Access
    Thermal Management of Lithium-ion Battery Packs
    (2014) Adair, Desmond; Ismailov, Kairat; Bakenov, Zhumabay
    Temperature affects batteries in five major ways: •operation of electrochemical system; •efficiency and charge acceptance; •power and energy efficiency; •safety and reliability; and, •life and life-cycle costs. Li-ion batteries are extremely sensitive to low and high temperatures. For battery packs it is important to regulate the pack to remain in the desired temperature range for optimum performance and life, and also to reduce uneven distribution of temperature throughout a packwhich would lead to reduced performance. Importantly, the attainment of even temperature distributions through the battery pack eliminates potential hazards related to uncontrolled temperature build-up (‘thermal runaway’).
  • No Thumbnail Available
    ItemOpen Access
    Three-dimensional Zn/LiFePO4 aqueous hybrid-ion battery for renewable energy integration into electrical grids.
    (2015-11-11) Hara, Toru; Antonov, Anton; Umirov, Nurzhan; Bakenov, Zhumabay
    Renewable energy integration into electrical grids is crucial for energy security, leading to the highly secured communication network, traffic control, industrial activities, etc. Renewable energies are intermittent and cannot be easily directly integrated to electric grids without using batteries. These batteries must be safe and inexpensive from the viewpoint of life-cycle cost. Aqueous batteries are non-flammable that can be a great merit compared with traditional lithium-ion batteries that use flammable organic electrolyte solutions.