Sökning: "capacity measurement of batteries"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden capacity measurement of batteries.

1. 1. State of charge and heat impact on Li-ion batteries during calendar aging

   Uppsats för yrkesexamina på grundnivå, Uppsala universitet/Signaler och system

   Författare :Martin Jonsson; Tobias Karlsson; [2023]
   Nyckelord :State of charge; SoC; calendar aging; heat impact; Li-ion;

   Sammanfattning : Rechargeable batteries that are powering our everyday electronics go through their lifetime with countless charge/discharge cycles, after a few years the capacity has dropped noticeably. But how about batteries that are working as a back-up power system for when connection to the AC mains is not possible, they might only perform a handful of cycles but does this mean they last forever? On behalf of Getinge AB, this bachelor thesis aims to explore the subject named as ‘calendar aging’. LÄS MER

3. 2. Design and Development of a Data Acquisition and Communication System for Point Absorber Tracking

   Master-uppsats, Uppsala universitet/Institutionen för elektroteknik

   Författare :Balakrishnan Kannan; [2021]
   Nyckelord :Data Acquisition System; Raspberry Pi; Controller; Processor; Wave buoy; Lysekil; wave energy; measurements; IMU; GPS; Strain gauge; force; Solar energy; Battery; communication; 4G; internet; Remote tracking; Shell; Python;

   Sammanfattning : The recent trend in generating energy from the waves has led to several advancements in the methods and the various research is conducted across the world, to study the behaviour of point absorbers on the waves. The point absorbers such as wave buoys are designed to move according to the waves and the generator that is mechanically coupled with the buoys, generate electricity. LÄS MER

4. 3. Method development for testing propulsion batteries at a workshop : Parameter identification through experiments and investigation of challenges with workshop implementation

   Master-uppsats, KTH/Skolan för teknikvetenskap (SCI)

   Författare :Kim Strinnholm; [2020]
   Nyckelord :Master thesis; Batteries; Lithium batteries; Test methods for batteries; Test development for workshop; Capacity measurement; State of health; tracking SOH; Examensarbete; Batterier; Lithium batterier; Test metoder för batterier; Utveckling av tester för verstäder; Kapacitets mätning; Följa SOH;

   Sammanfattning : The electrification within the automotive industry goes faster than ever, which drives an increased demand for more knowledge about batteries. Vehicle manufacturers should be able to tell how long the batteries will last and have a service program for electrified vehicles, just as there is for traditional, fuel-driven ones. LÄS MER

5. 4. Lifetime estimation of lithium-ion batteries for stationary energy storage system

   Master-uppsats, KTH/Skolan för kemivetenskap (CHE)

   Författare :Joakim Andersson; [2017]
   Nyckelord :Li-ion battery; State of charge; State of health; Kalman filtering; Energy Storage;

   Sammanfattning : With the continuing transition to renewable inherently intermittent energy sources like solar- and wind power, electrical energy storage will become progressively more important to manage energy production and demand. A key technology in this area is Li-ion batteries. LÄS MER

7. 5. Energy Consumptions of Text Input Methods on Smartphones

   Master-uppsats, Blekinge Tekniska Högskola/Sektionen för datavetenskap och kommunikation

   Författare :Henry Obison; Chiagozie Ajuorah; [2013]
   Nyckelord :Energy consumption; Power Monitor; Smartphones; Text input methods;

   Sammanfattning : Mobile computing devices, in particular smartphones are powered from Lithium-ion batteries, which are limited in capacity. With the increasing popularity of mobile systems, various text input methods have been developed to improve user experience and performance. LÄS MER