Sökning: "Marca Doeff"

Hittade 2 avhandlingar innehållade orden Marca Doeff.

1. 1. Structural Changes in Lithium Battery Materials Induced by Aging or Usage

   Författare :Rickard Eriksson; Kristina Edström; Torbjörn Gustafsson; Leif Nyholm; Marca Doeff; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Li-ion batteries; XRD; EXAFS; HAXPES; Chemistry with specialization in Inorganic Chemistry; Kemi med inriktning mot oorganisk kemi;

   Sammanfattning : Li-ion batteries have a huge potential for use in electrification of the transportation sector. The major challenge to be met is the limited energy storage capacity of the battery pack: both the amount of energy which can be stored within the space available in the vehicle (defining its range), and the aging of the individual battery cells (determining how long a whole pack can deliver sufficient energy and power to drive the vehicle). LÄS MER

3. 2. Electrochemical characterization of LiNi1/3Mn1/3Co1/3O2 at different stages of lifetime

   Författare :Maria Varini; Göran Lindbergh; Marca Doeff; KTH; []
   Nyckelord :Li-ion battery; positive electrode; LiNi1 3Mn1 3Co1 3O2; electrochemical characterization; ageing; semi-empirical model; Chemical Engineering; Kemiteknik;

   Sammanfattning : Li-ion batteries have entered our everyday life first as power sources for small electronics, and recently for electric vehicles and stationary storage applications. As the requirements on the performance and lifetime of Li-ion batteries increase and diversify, it becomes paramount to properly understand their electrochemical performance at single-electrode level, and their evolution over cycling. LÄS MER