Soft batteries from wood waste products are as innovative energy sources

UDC 621.354/.355:502./174:620.9

O. Vutvutska,
A. Vuborna

The necessity of the use of wood waste in the form of soft batteries as an alternative to incineration and emission of waste.
The use of the wood wastes for the manufacture of batteries is proposed. Wastes are formed at all stages of harvesting and processing of wood. They include: branches, knots, tops, sawdust, hemp, roots, bark and ham, which togather form about 21% of the total mass of wood. During the processing of wood on sawn timber, the output reaches an average 65%, while the rest forms waste in the form of lagging (14%), sawdust (12%), sliced (9%). During the manufacture of building components, furniture and other products from lumber is received waste in the form of chips, sawdust and individual pieces of wood, that is about 40% of the mass of used lumber. The main component of such waste is lignin. Scientists have shown that the isolating properties of lignin derivatives can be combined with the conductivity of polypyrrole to create a composite material that can effectively hold an electric charge.
Lignin is a natural product, that in large quantity available in the waste paper industry. The authors of the idea describe the use of it in the following way: a polymer cathode can be prepared by electrochemical oxidation of a pyrrole into polypyrene in a solution of lignin derivatives. The group of quinones of lignin is used to store electrons and protons, as well as to exchange during the oxidation-reduction cycle.
An obvious advantage of the proposed structure is the unmatched availability of lignin, in contrast to the various metal oxides, which are needed for the production of lithium-ion batteries.
New batteries don’t use lithium, but use sodium, which makes them optimal for storing large amounts of energy, such as energy accumulated by solar power plants, unlike that ones, which are widely used now. The material is also inexpensive and environmentally friendly. One of the advantages of batteries is that they easily carry compression / stretch strains that occur during heating / charge / discharge, which makes them more durable than most modern nanobattery. The number of battery charge / discharge cycles is not less than 400 full cycles.
Such batteries can be used in the manufacture of flexible electronic devices, “smart” fabrics, and safe electric vehicles. The Morph phone, that can bend, take a different shape and even change its size, differing in functionality which is not available for modern phones, is an example of a flexible electronic device. A flexible battery is required for manufacturing of such phone, and a soft, waste wood battery can replace existing batteries while reducing the cost of such a phone.
Since the introduction into the production of such batteries is an extension of their assortment, the target audience of the production of soft wood waste batteries is battery manufacturers. Also, consumers of such batteries will be developers of new electromechanisms that require flexible batteries.

Ключові слова: м’які батарейки із відходів дерева, інновація,інноваційний процес.

Soft batteries from wood waste products are as innovative energy sources.

Issue 4 (92), 2016