Page 11 - 2nd Issue- RuAHS Newsletter

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Scholarly Articles
Battery Anode from Hemp Waste: Preparation of
Nano-porous Carbon Derived from Hemp Stems as
Anode for Lithium-ion Batteries
Ms. M.A.M. Wimalasena, AH/PH/2018/201, Department of Pharmacy
Are you aware of new research finding on out- Moreover, hemp plant contains
performing of graphene by carbon fibers tetrahydrocannabinol which is a compound
derived from hemp plant waste for a responsible for producing psychoactive effects
thousandth of the cost? in humans.

Hemp is considered as a very important plant Uses of Hemp plant
as it is reported with many uses. Recent Fiber production
research on the uses of hemp plant have found Making fabric similar to linen in textile
that inner bark of it, a waste product from industry
hemp production is a valuable source that can Production of biodegradable and recyclable
store energy and power. Producing Nano- bioplastics
porous carbon out of hemp plant stem is such Medicinal uses
an attractive idea as it is more effective than As an aggregate for concrete
graphene which is normally used as anode Production of paints, soaps, varnishes etc.
material in Lithium-Ion Batteries (LIB). from hemp seed oil
Carbon derived from hemp stem increases the Hemp seeds are a good source of protein,
LIB performance while providing a better fiber, and magnesium
solution for comprehensive utilization of an Hemp seed milk is a good substitute for
agricultural waste. This simple environmental- dairy milk
friendly product is much more advantageous
because of the abundancy of the plant and low The concept of using carbon derived from
cost of the production. A promising anode hemp stem for the production of anode in
material with a high specific capacity from a lithium-ion batteries.
biomass waste is a new innovation for a green
future. LIB was first introduced and commercialized
by Sony corporation in 1991. It is a kind of
Overview of Hemp plant secondary battery which is widely used in

Hemp plant (Cannabis sativa) also known as mobile phones, laptops and electric vehicles
industrial hemp is a grass plant of the family (Liang et al., 2021). LIB consists of anode
Cannabaceae. Though it was originated in cathode and electrolyte (Liang et al., 2021). The
Central Asia, hemp plant now grown in any anode is mostly made from graphite may be
location despite the climate and any other natural, artificial, or carbon fiber. Commercial
requirements such as water, sunlight, fertile LIB uses graphite as an anode with a theoretical
etc. providing many economic benefits. capacity of 372 m A h g-1 (one lithium per six
Presently, this plant has widely been cultivated carbons, LiC6) and excellent capacity retention
because of its availability for raw materials upon cycling (Um et al., 2018).
with important industrial value and high yield.

October 2022 10