PowerPoint ® Presentation Chapter 6 Batteries Battery Principles Battery Types Battery Systems...
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Transcript of PowerPoint ® Presentation Chapter 6 Batteries Battery Principles Battery Types Battery Systems...
PowerPoint® PresentationPowerPoint® Presentation
Chapter 6Chapter 6BatteriesBatteries
Battery Principles • Battery Types • Battery Systems • Battery InstallationBattery Principles • Battery Types •
Battery Systems • Battery Installation
Chapter 6 — BatteriesChapter 6 — Batteries
Batteries are collections of cells that produce electricity through electrochemical reactions. Cells can be configured into batteries of many different shapes and sizes.
Batteries are collections of cells that produce electricity through electrochemical reactions. Cells can be configured into batteries of many different shapes and sizes.
Chapter 6 — BatteriesChapter 6 — Batteries
Many components are common to various battery types.
Many components are common to various battery types.
Chapter 6 — BatteriesChapter 6 — Batteries
Higher temperatures and slower discharge rates result in increased battery capacity.
Higher temperatures and slower discharge rates result in increased battery capacity.
Chapter 6 — BatteriesChapter 6 — Batteries
Electrochemical reactions within a cell produce a flow of electrons from the negative terminal to the positive terminal when they are connected electrically.
Electrochemical reactions within a cell produce a flow of electrons from the negative terminal to the positive terminal when they are connected electrically.
Chapter 6 — BatteriesChapter 6 — Batteries
Slower discharge rates remove more energy from a battery than faster discharge rates.
Slower discharge rates remove more energy from a battery than faster discharge rates.
Chapter 6 — BatteriesChapter 6 — Batteries
The state of charge and depth of discharge of a battery always add up to 100%.
The state of charge and depth of discharge of a battery always add up to 100%.
Chapter 6 — BatteriesChapter 6 — Batteries
When PV arrays are used to charge batteries, seasonal insolation variations (in addition to loads) affect depth of discharge values.
When PV arrays are used to charge batteries, seasonal insolation variations (in addition to loads) affect depth of discharge values.
Chapter 6 — BatteriesChapter 6 — Batteries
Batteries exhibit higher self-discharge rates at higher temperatures.
Batteries exhibit higher self-discharge rates at higher temperatures.
Chapter 6 — BatteriesChapter 6 — Batteries
The charging reaction within a cell is the reverse of the discharge reaction restoring the reactants and electrolyte to their original forms.
The charging reaction within a cell is the reverse of the discharge reaction restoring the reactants and electrolyte to their original forms.
Chapter 6 — BatteriesChapter 6 — Batteries
Bulk, absorption, and float charging control battery voltage with the charging current during a multiple-stage charging cycle.
Bulk, absorption, and float charging control battery voltage with the charging current during a multiple-stage charging cycle.
Chapter 6 — BatteriesChapter 6 — Batteries
The freezing point of sulfuric acid electrolyte changes at various states of charge because of changes in specific gravity.
The freezing point of sulfuric acid electrolyte changes at various states of charge because of changes in specific gravity.
Chapter 6 — BatteriesChapter 6 — Batteries
Sulfation reduces the capacity of a lead-acid cell by locking away active material and electrolyte as crystals.
Sulfation reduces the capacity of a lead-acid cell by locking away active material and electrolyte as crystals.
Chapter 6 — BatteriesChapter 6 — Batteries
Stratification results when the specific gravity of the electrolyte is higher at the bottom of a cell than at the top.
Stratification results when the specific gravity of the electrolyte is higher at the bottom of a cell than at the top.
Chapter 6 — BatteriesChapter 6 — Batteries
Batteries are divided into classes based on their applications and their discharge and cycle characteristics.
Batteries are divided into classes based on their applications and their discharge and cycle characteristics.
Chapter 6 — BatteriesChapter 6 — Batteries
Catalytic recombination caps (CRCs) recombine oxygen and hydrogen into water, which then drains back into the battery.
Catalytic recombination caps (CRCs) recombine oxygen and hydrogen into water, which then drains back into the battery.
Chapter 6 — BatteriesChapter 6 — Batteries
Captive-electrolyte batteries are sealed and contain electrolyte that is immobilized.
Captive-electrolyte batteries are sealed and contain electrolyte that is immobilized.
Chapter 6 — BatteriesChapter 6 — Batteries
The characteristics of the types of batteries commonly used in PV systems vary between different designs.
The characteristics of the types of batteries commonly used in PV systems vary between different designs.
Chapter 6 — BatteriesChapter 6 — Batteries
System requirements and characteristics of battery types must be considered when choosing a battery.
System requirements and characteristics of battery types must be considered when choosing a battery.
Chapter 6 — BatteriesChapter 6 — Batteries
Connecting batteries in series increases system voltage.
Connecting batteries in series increases system voltage.
Chapter 6 — BatteriesChapter 6 — Batteries
Connecting batteries in parallel increases system capacity.
Connecting batteries in parallel increases system capacity.
Chapter 6 — BatteriesChapter 6 — Batteries
Series and parallel connections can be combined to produce a desired system voltage level and capacity.
Series and parallel connections can be combined to produce a desired system voltage level and capacity.
