
K1 is Ceylon Graphite’s first mining project and operates under the Sarcon Development legal umbrella. This site has received an Industrial Mining License Category A from the Geological Survey and Mines Bureau. An Industrial Mining License Category A is the highest category license in Sri Lanka. It grants. . CYL is also unique in its vein graphite’s high-grade and purity that does not require conventional primary processing (therefore, no tailings,. . Material test work conducted by Ceylon early on in the development produced critical results that confirmed the path for the mine to battery strategy adopted by Ceylon. CYL intends to upgrade its graphite to battery-grade. [pdf]
A preliminary national study carried out by the State Ministry of Skills Development, Vocational Education, Research & Innovations found that Sri Lankan graphite can be used for Lithium Battery production in Sri Lanka. It was revealed local production of Lithium Batteries with high capacity would attract markets from across the world.
Colombo (News 1st); A state-owned enterprise for Lithium Battery production using Sri Lankan minerals will be established in the country, said the Chairman of the Presidential Task Force in charge of Economic Revival and Poverty Eradication, Basil Rajapaksa.
It was revealed local production of Lithium Batteries with high capacity would attract markets from across the world. State institutions and government funding will be used as capital for the state-owned enterprise which will be set up for this purpose.
The Lithium-ion battery (LIB) has significant benefits over other batteries. They have a longer life cycle, higher energy density, faster charge and discharge cycles, quick manufacturing and deploying processes, and lower maintenance requirements.
The batteries are tested at a rate of C/5, meaning five hours to charge and five hours to discharge, hence completing about two full cycles per day. The outstanding performance of Ceylon’s vein graphite material against the current commercially used synthetic graphite is due to the high crystallinity of Sri Lankan vein graphite.
Don Baxter, CEO at Ceylon Graphite Corp, describes how the company will evolve into a stand-alone battery technology company through its access to the highest grade battery-quality graphite mines.

A battery is a modified lithium-ion battery that uses lithium-titanate nanocrystals, instead of , on the surface of its . This gives the anode a surface area of about 100 square meters per gram, compared with 3 square meters per gram for carbon, allowing electrons to enter and leave the anode quickly. Also, the redox potential of Li+ intercalation into titanium oxides is more positive than that of Li+ intercalation into graphite. This leads to fast charging (hig. [pdf]

Generally, the negative electrode of a conventional lithium-ion cell is made from . The positive electrode is typically a metal or phosphate. The is a in an . The negative electrode (which is the when the cell is discharging) and the positive electrode (which is the when discharging) are prevented from shorting by a separator. The el. Lithium ion batteries have an energy density of around 160 Wh/kg, which is 0.16 kWh/kg. This 12:0.16 ratio translates to an equivalent volumetric density of 76.8 kWh/l. [pdf]
Lithium-ion batteries charge faster, last longer and have a higher power density for more battery life in a lighter package. The weight of a Lithium-ion battery depends on the size, chemistry, and the amount of energy it holds. A typical cell weighs about 30-40 grams. Cells are packaged together to make a battery pack for a device.
Lithium ion batteries have an energy density of around 160 Wh/kg, which is 0.16 kWh/kg. This 12:0.16 ratio translates to an equivalent volumetric density of 76.8 kWh/l. The Tesla Model S has a battery pack with a capacity of 85 kWh and weighs 540 kg; this gives it a volumetric energy density of 0.39 kWh/l - about 5% of the equivalent for gasoline.
Lithium-ion batteries are used a lot because of their high energy density. They’re in electric cars, phones, and other devices that need a lot of power. As battery tech gets better, we’ll see even more improvements in energy storage capacity and volumetric energy density. The journey of battery innovation is amazing.
Energy density (Wh/L) – The energy a battery can store per unit of volume. Power density (W/kg) – The power a battery can deliver per unit of mass. Cycle life – The number of charge/discharge cycles a battery can handle before it loses a lot of capacity. Energy density is very important for battery performance.
Typically expressed in watt-hours per liter (Wh/L) or kilogram (Wh/kg), it determines the power a battery can hold and subsequently deliver. High energy density signifies more incredible energy stored within a compact space or lighter weight, translating to longer-lasting, more powerful, and efficient batteries. Average Energy Density Metrics
Lithium-ion batteries generally have energy densities between 150 to 250 Wh/kg, while lithium-sulfur (Li-S) batteries can theoretically reach 500 Wh/kg or higher, and lithium-air batteries could surpass 1000 Wh/kg in ideal conditions. However, practical issues like cycle life and material stability limit these potentials in real-world applications.
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