Biomass is the material derived from plants that use sunlight to grow which include plant and animal material such as wood from forests, material left over from agricultural and forestry processes, and organic industrial, human and animal wastes. Biomass energy is a type of renewable energy generated from biological (such as, anaerobic digestion) or thermal conversion (for example, combustion) of biomass resources.
Biomass comes from a variety of sources which include:
Wood from natural forests and woodlands
Agricultural residues such as straw, stover, cane trash and green agricultural wastes
Agro-industrial wastes, such as sugarcane bagasse and rice husk
Industrial wastes, such as black liquor from paper manufacturing
In nature, if biomass is left lying around on the ground it will break down over a long period of time, releasing carbon dioxide and its store of energy slowly. By burning biomass its store of energy is released quickly and often in a useful way. So converting biomass into useful energy imitates the natural processes but at a faster rate.
Biomass can be transformed into clean energy and/or fuels by a variety of technologies, ranging from conventional combustion process to advanced biofuels technology. Besides recovery of substantial energy, these technologies can lead to a substantial reduction in the overall biomass waste quantities requiring final disposal, which can be better managed for safe disposal in a controlled manner while meeting the pollution control standards.
Biomass conversion systems reduces greenhouse gas emissions in two ways. Heat and electrical energy is generated which reduces the dependence on power plants based on fossil fuels. The greenhouse gas emissions are significantly reduced by preventing methane emissions from decaying biomass. Moreover, biomass energy plants are highly efficient in harnessing the untapped sources of energy from biomass resources and helpful in development of rural areas.
Organisations and more importantly, battery manufacturers are recognising the need to overcome the problem of global warming. The objective is to develop ways of producing carbon-neutral sources of energy. One of the areas currently being explored is the use of biomass resources to create sustainable, eco-friendly batteries which are suitable for use across a wide range of business sectors. With different forms of biomass energy available, the challenge is finding products that provide high performance along with being commercially viable.
A quick glance at popular biomass resources
What is Biomass Energy?
Biomass is something that we are all familiar with. It is derived from plants and animals and is now becoming an increasingly viable form of renewable energy. Initially, the energy comes from the sun, and in plants, it is converted via photosynthesis.
Regardless of its origin, the biomass will either be converted into biogas, biofuels or burnt directly to create heat. Of course, different sources of biomass produce varying amounts of energy, affecting their efficiency. As a result, high precision battery testing equipment is required to ascertain their viability.
Forms of Biomass Used for Energy
1. Wood and Products
Renewable sources of timber and the by-products of wood such as wood chip are burned in the home to create heat and in industry, burned to generate electricity. Typically, softwood such as pine is used as it is quicker to replenish than hardwood such as oak.
2. Agricultural Crops and Waste
With large amounts of waste produced from the farming sector, it is natural that this is an ideal source of energy. The materials are either converted to liquid biofuels or burned directly to generate heat or electricity.
We frequently hear about the link between animal waste and global warming. Inevitably, the same is also true of human waste. Both can be converted into biogas and burned as a fuel.
How is Biomass Converted to Energy?
Biomass can be converted to energy using different methods depending on the source. Solid forms of biomass such as garbage and wood are generally burned to created heat while other types will be initially converted into either biogas or biofuels such as ethanol or other biodiesel-related fuels used to power vehicles or generators.
Human sewage and animal manure are placed in vessels known as digesters to create biogas. Liquid fuels such as biodiesel are derived from oils and animal fats. Any form of biomass must be burned at some point to generate energy.
Biomass and Batteries
The most common form of battery used in domestic appliances and mobile devices is lithium-ion batteries. However, the performance and capacity are still below what is demanded by manufacturers and consumers. As a result, manufacturers are investigating alternatives such as biomass. Naturally, high precision testing equipment such as that produced by Arbin is required to assess their potential and commercial viability accurately.
The potential of elemental sulphur has been explored although due to its poor electrical conductivity, has failed to make it onto the mass market. A composite of sulphur and porous carbon appears to be a far more viable option although this is a complicated and time-consuming process.
Carbon is one of the best conductors available, albeit at a relatively high cost. Therefore, the objective is to source carbon from biowaste, such as popular catkin that can be combined with sulphur. Popular catkin is a highly porous carbon and ideal for Li/S batteries.
High Precision Battery Testing
High precision battery testing is required to establish the commercial viability of popular catkin and other biowaste products. Marginal improvement could have a significant impact and give cell manufacturers a competitive advantage over their rivals.
Naturally, extensive research needs to be conducted to assess a variety of bioproducts that are presenting themselves as potentially viable alternative products. Increasing battery capacity and battery life is something that is required in several sectors such as with EVs, mobile devices and home appliances. Major manufacturers will be eagerly awaiting the findings of testing that is currently ongoing.