Sökning: "Lithium-ion"

Visar resultat 1 - 5 av 167 avhandlingar innehållade ordet Lithium-ion.

1. 1. Towards Safer Lithium-Ion Batteries

   Författare :Marie Herstedt; Kristina Edström; Martin Winter; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Inorganic chemistry; lithium-ion batteries; photoelectron spectroscopy; surface film; thermal stability; electrolyte additive; graphite; lithium iron phosphate; Oorganisk kemi; Inorganic chemistry; Oorganisk kemi; Inorganic Chemistry; oorganisk kemi;

   Sammanfattning : Surface film formation at the electrode/electrolyte interface in lithium-ion batteries has a crucial impact on battery performance and safety. This thesis describes the characterisation and treatment of electrode interfaces in lithium-ion batteries. LÄS MER

3. 2. Structural Lithium Ion Battery Electrolytes

   Författare :Niklas Ihrner; Mats Johansson; Daniel Brandell; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Structural batteries; Structural battery electrolyte; Lithium ion batteries; Polymerization induced phase separation; Carbon fibers; Fiber- och polymervetenskap; Fibre and Polymer Science;

   Sammanfattning : A major challenge in the electrification of vehicles in the transport industry is that batteries are heavy, which reduces their effectiveness in mobile applications. A solution to this is structural batteries, which are batteries that can carry mechanical load while simultaneously storing energy. LÄS MER

4. 3. State Estimation of Lithium-ion Batteries

   Författare :Xiaolei Bian; Longcheng Liu; Jinying Yan; Huazhen Fang; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Lithium-ion battery; State of charge; State of health; Model-based method; Extended Kalman filter; Filter tuning; Fusion model; Chemical Engineering; Kemiteknik;

   Sammanfattning : To guarantee the safety operation, the key states of lithium-ion battery, e.g., the state of charge and the state of health, must be estimated and monitored accurately. This thesis is mainly to develop models and algorithms to accurately and robustly estimate the key battery states, based on the available measurements i. LÄS MER

5. 4. Hybrid materials for lithium-ion batteries

   Författare :Cesario Ajpi Condori; Göran Lindbergh; Anders Lundblad; Andrew Kentaro Inge; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hybrid battery materials; conducting polymer composite; metal organic compounds; lithium-ion batteries.; Kemi; Chemistry; Chemical Engineering; Kemiteknik;

   Sammanfattning : The Lithium‐ion batteries are the most important power source for electronic devices as electronics, storage and the different electric vehicles. The research and development of new materials for different applications has increased, especially in the development of materials with better electrochemical properties (Specific capacity, rate capability, high energy density and cyclability). LÄS MER

7. 5. Polymers at the Electrode-Electrolyte Interface : Negative Electrode Binders for Lithium-Ion Batteries

   Författare :Fabian Jeschull; Daniel Brandell; Bernard Lestriez; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; binder; CMC-Na; PAA; graphite; silicon; lithium-ion battery; photoelectron spectros-copy; Kemi med inriktning mot materialkemi; Chemistry with specialization in Materials Chemistry; Kemi med inriktning mot polymerkemi; Chemistry with specialization in Polymer Chemistry; Chemistry with specialization in Physical Chemistry; Kemi med inriktning mot fysikalisk kemi;

   Sammanfattning : We are today experiencing an increasing demand for high energy density storage devices like the lithium-ion battery for applications in portable electronic devices, electric vehicles (EV) and as interim storage for renewable energy. High capacity retention and long cycle life are prerequisites, particularly for the EV market. LÄS MER