Battery Technologies and Chemistry

Battery Technologies and Chemistry Glossary #

Battery Technologies and Chemistry Glossary

Advanced Certificate in Battery Storage for Renewable Energy #

Advanced Certificate in Battery Storage for Renewable Energy

Alkaline Battery #

Alkaline Battery

A type of disposable battery that uses an alkaline electrolyte, typically potass… #

Alkaline batteries are commonly used in low-drain devices such as remote controls and clocks.

Anode #

Anode

The electrode in a battery where oxidation (loss of electrons) occurs during dis… #

In a lithium-ion battery, the anode is typically made of graphite.

Battery Management System (BMS) #

Battery Management System (BMS)

A system that monitors and controls the charging and discharging of a battery #

The BMS helps optimize battery performance, prolong battery life, and ensure safe operation.

Cathode #

Cathode

The electrode in a battery where reduction (gain of electrons) occurs during dis… #

The cathode material determines the voltage and energy density of the battery.

C #

rating

A measure of the rate at which a battery can be charged or discharged relative t… #

For example, a 1C rate means the battery can be charged or discharged in one hour.

Capacity #

Capacity

The amount of electrical energy a battery can store, typically measured in amper… #

Higher capacity batteries can store more energy.

Cell #

Cell

The basic unit of a battery that consists of an anode, cathode, and electrolyte #

Multiple cells are connected in series or parallel to form a battery pack.

Charge/discharge cycle #

Charge/discharge cycle

One complete round of charging and discharging a battery #

The number of cycles a battery can undergo before its capacity decreases significantly is an important factor in battery life.

Charging efficiency #

Charging efficiency

The ratio of the energy stored during charging to the energy required to charge… #

Higher charging efficiency results in less energy loss during charging.

Depth of Discharge (DoD) #

Depth of Discharge (DoD)

The percentage of a battery's capacity that has been discharged #

For example, a 50% DoD means that half of the battery's capacity has been used.

Electrode #

Electrode

A conductor through which an electric current enters or leaves a battery #

The anode and cathode are the two electrodes in a battery.

Electrolyte #

Electrolyte

The medium through which ions can move between the anode and cathode in a batter… #

The electrolyte can be liquid, gel, or solid, depending on the battery type.

Energy density #

Energy density

The amount of energy a battery can store per unit volume or weight #

Higher energy density batteries are more compact and lightweight.

Half #

cell

One of the two electrodes in a battery, either the anode or the cathode. Half #

cells are combined to form a complete battery cell.

Lithium #

ion Battery

A type of rechargeable battery that uses lithium ions as the charge carriers #

Lithium-ion batteries are commonly used in portable electronics and electric vehicles.

Memory effect #

Memory effect

A phenomenon where a battery loses capacity if it is repeatedly recharged before… #

Lithium-ion batteries are not prone to memory effect.

Overcharge #

Overcharge

Charging a battery beyond its designed capacity, which can lead to overheating,… #

A battery management system helps prevent overcharging.

Overdischarge #

Overdischarge

Discharging a battery below its recommended voltage, which can damage the batter… #

Most batteries have built-in protection circuits to prevent overdischarge.

Power density #

Power density

The amount of power a battery can deliver per unit volume or weight #

Higher power density batteries can provide more power in a shorter amount of time.

Primary Battery #

Primary Battery

A disposable battery that cannot be recharged #

Primary batteries are designed for single use and are typically discarded after they are depleted.

Rechargeable Battery #

Rechargeable Battery

A type of battery that can be recharged multiple times by passing a current thro… #

Rechargeable batteries are more cost-effective and environmentally friendly than disposable batteries.

Self #

discharge

The gradual loss of battery capacity when it is not in use #

Some batteries, like lithium-ion batteries, have low self-discharge rates, while others may lose capacity quickly.

Solid #

state Battery

A type of battery that uses a solid electrolyte instead of a liquid or gel elect… #

Solid-state batteries are safer, more energy-dense, and have longer cycle lives than traditional batteries.

State of Charge (SoC) #

State of Charge (SoC)

The percentage of a battery's capacity that is currently available for use #

Monitoring the state of charge helps prevent overcharging or overdischarging the battery.

State of Health (SoH) #

State of Health (SoH)

A measure of a battery's overall condition and performance relative to its origi… #

State of health is an important factor in assessing battery life and reliability.

Thermal Runaway #

Thermal Runaway

A condition where a battery overheats and releases energy at an uncontrollable r… #

Thermal runaway can be caused by overcharging, short circuits, or internal defects.

Ultrafast Charging #

Ultrafast Charging

Charging a battery at a very high rate to reduce charging time significantly #

Ultrafast charging technologies are being developed for electric vehicles and portable electronics.

Voltage #

Voltage

The electrical potential difference between the anode and cathode in a battery #

Voltage determines the amount of electrical energy that can be delivered by the battery.

Wh/kg #

Wh/kg

Watt #

hours per kilogram, a measure of energy density that indicates the amount of energy a battery can store per unit weight. Higher Wh/kg values indicate more energy-dense batteries.

Wh/L #

Wh/L

Watt #

hours per liter, a measure of energy density that indicates the amount of energy a battery can store per unit volume. Higher Wh/L values indicate more compact batteries.