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Visualized: Inside a Lithium-Ion Battery

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The following content is sponsored by the EnergyX

What’s Inside a Lithium-Ion Battery?

Winning the Nobel Prize for Chemistry in 2019, the lithium-ion battery has become ubiquitous and today powers nearly everything, from smartphones to electric vehicles.

In this graphic, we partnered with EnergyX to find out how these important pieces of technology work.

Looking Inside

Lithium-ion batteries have different standards in various regions, namely NMC/NMCA in Europe and North America and LFP in China. The former has a higher energy density, while the latter has a lower cost.

Here is the average mineral composition of a lithium-ion battery, after taking account those two main cathode types:

Material% of Construction
Nickel (Ni)4%
Manganese (Mn)5%
Lithium (Li)7%
Cobalt (Co)7%
Copper (Cu)10%
Aluminum (Al)15%
Graphite (C)16%
Other Materials36%

The percentage of lithium found in a battery is expressed as the percentage of lithium carbonate equivalent (LCE) the battery contains. On average, that is equal to 1g of lithium metal for every 5.17g of LCE.

How Do They Work?

Lithium-ion batteries work by collecting current and feeding it into the battery during charging. Normally, a graphite anode attracts lithium ions and holds them as a charge. But interestingly, recent research shows that battery energy density can nearly double when replacing graphite with a thin layer of pure lithium.

When discharging, the cathode attracts the stored lithium ions and funnels them to another current collector. The circuit can react as both the anode and cathode are prevented from touching and are suspended in a medium that allows the ions to flow easily.

Powering Tomorrow

Despite making up only 7% of a battery’s weight on average, lithium is so critical for manufacturing lithium-ion batteries that the U.S. Geological Survey has classified it as one of 35 minerals vital to the U.S. economy.

This means refining lithium more effectively is critical to meeting the demand for next-generation lithium-ion batteries.

EnergyX is powering the clean energy transition with the next generation of lithium metal batteries with longer cycle life, greater energy density, and faster charging times.

Don’t miss your chance to transform the future of renewable energy. Invest in EnergyX Now.

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Electrification

Top 20 Countries by Battery Storage Capacity

China holds about two-thirds of global BESS capacity.

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This graphic highlights the top 20 battery storage capacity markets by current and planned grid capacity in gigawatt hour (GWh).

Visualizing the Top 20 Countries by Battery Storage Capacity

Over the past three years, the Battery Energy Storage System (BESS) market has been the fastest-growing segment of global battery demand. These systems store electricity using batteries, helping stabilize the grid, store renewable energy, and provide backup power.

In 2024, the market grew by 52%, compared to 25% growth in the EV battery market. Among the top companies in the BESS market are technology giants such as Samsung, LG, BYD, Panasonic, and Tesla.

This graphic highlights the top 20 BESS markets by current and planned grid capacity in gigawatt hour (GWh), based on exclusive data from Rho Motion as of February 2025.

Chinese Dominance

As with the EV market, China currently dominates global BESS deployments, accounting for approximately two-thirds of installed capacity. However, other markets are expected to grow significantly in the coming years, driven by low-cost lithium-ion cells and the expansion of renewable energy capacity.

Currently, China has 215.5 GWh of installed capacity and an ambitious 505.6 GWh project pipeline. The U.S. follows with 82.1 GWh installed and 162.5 GWh planned.

Top BESS MarketsInstalled 2024 (GWh)2027P
🇨🇳 China215.5721.2
🇺🇸 USA82.1244.6
🇬🇧 UK7.556.3
🇦🇺 Australia5.6102.9
🇨🇱 Chile3.841.0
🇮🇹 Italy2.27.9
🇸🇦 Saudi Arabia1.332.4
🇿🇦 South Africa1.39.4
🇮🇪 Ireland1.62.5
🇵🇭 Philippines1.06.1
🇯🇵 Japan1.05.0
🇩🇪 Germany1.06.2
🇰🇷 South Korea1.11.3
🇮🇱 Israel0.84.6
🇫🇷 France0.61.8
🇧🇪 Belgium0.75.3
🇺🇿 Uzbekistan0.65.9
🇸🇪 Sweden0.61.5
🇮🇳 India0.54.3
🇨🇦 Canada0.318.3

Canada is projected to be the fastest-growing market through 2027, with its cumulative capacity hitting 18.3 GWh—a significant increase from its current 0.3 GWh capacity.

Countries such as Australia (97.3 GWh pipeline), Saudi Arabia (31.1 GWh), and Chile (37.2 GWh) have relatively small current installations but plan substantial expansions. Within Europe, the UK leads with 7.5 GWh of installed capacity and 48.7 GWh in the pipeline, while Italy, Germany, France, and Belgium show steady but more modest growth.

Despite being technological leaders, Japan (4 GWh pipeline) and South Korea (0.3 GWh) have relatively low planned BESS expansions.

According to Rho Motion, China will remain the dominant player in 2027, but its share of the total market is expected to decline to just over 50% based on the current project pipeline.

While the BESS market is expanding, challenges remain, including grid connection bottlenecks and the development of revenue streams in emerging markets.

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Electrification

Visualizing Chinese EV Market Share Overseas

Chinese brands accounted for 62% of global EV sales in 2024.

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This graphic shows the presence of Chinese electric vehicles in other countries, considering total EV sales and market share. 

Visualizing Chinese EV Market Share Overseas

China is the undisputed global powerhouse of the EV industry, leading in both domestic sales and overall production. Chinese brands were responsible for 62% of EV global sales in 2024.

This graphic shows the presence of Chinese electric vehicles in other countries, considering total EV sales and market share.  This data comes exclusively from Rho Motion’s EV Sales Quarterly Outlook, as of 2024.

Affordable EVs

As the global EV market has expanded, in 2024, over 17 million units were sold. Chinese manufacturers have aggressively pursued international opportunities, offering affordable vehicles that often undercut local competitors.

However, market access has varied significantly across regions. The U.S. and Canada are the only markets where Chinese-made EVs have no presence. The U.S. has taken a firm stance against Chinese EVs, imposing a 100% tariff in 2024, and more recently enacting laws banning Chinese technology in EVs on U.S. roads. Given its deep economic ties with the U.S., Canada followed suit with identical tariffs.

CountryTotal EV SalesChinese Market Share
🇺🇸 U.S.1,540,3540%
🇩🇪 Germany577,6304%
🇬🇧 UK571,1417%
🇫🇷 France464,5895%
🇨🇦 Canada246,4240%
🇧🇪 Belgium192,5603%
🇳🇱 Netherlands190,7846%
🇸🇪 Sweden165,2565%
🇳🇴 Norway126,0889%
🇧🇷 Brazil125,62482%
🇪🇸 Spain122,37510%
🇮🇹 Italy121,8896%
🇯🇵 Japan114,1292%
🇦🇺 Australia113,51126%
🇮🇳 India104,42623%
🇩🇰 Denmark103,2028%
🇲🇽 Mexico95,28270%
🇹🇭 Thailand77,25077%
🇵🇹 Portugal72,0708%
🇮🇱 Israel69,59564%
🇨🇭 Switzerland68,4071%
🇦🇹 Austria63,71711%
🇮🇩 Indonesia43,20275%
🇫🇮 Finland37,8812%
🇮🇪 Ireland30,1059%
🇸🇬 Singapore29,52126%
🇲🇾 Malaysia21,79852%
🇳🇵 Nepal12,70574%
🇳🇿 New Zealand10,02715%
🇨🇱 Chile5,60442%

Europe, by contrast, has been more open to Chinese EVs but remains cautious about protecting its domestic automotive industry. In 2024, following an anti-subsidy investigation, the EU introduced variable BEV import tariffs on specific Chinese automakers of up to an additional 35.3%.

Meanwhile, in countries without a strong domestic auto industry, Chinese EVs have rapidly gained market share. This is especially evident in neighboring Asian countries and in South and Central America, where Chinese manufacturers are expanding aggressively by beginning to build production capacity and capitalizing on the demand for affordable electric vehicles.

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