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SEM Co., Ltd. is a producer of cathode core materials for secondary batteries

Sustainable Lithium Supply

in the Energy Domain

Energy and
Environmental Crises

As the battery industry develops,
resource depletion and environmental pollution
have become a global concern

Resource
Recirculation

At SEM, we aim to solve these problems
through zero waste and resource recycling with our
innovative E-waste recycling technology.

We are SEM,
a recycling
specialist company

OUR PRODUCTS

SEM produces lithium products and core materials for secondary batteries using hybrid methods to
lead the innovation of the fourth industrial revolution

Battery Grade Lithium Hydroxide

Battery Grade Lithium Carbonate

Battery grade NCM Precursor Complex

SEM Co., Ltd. Technology

Lithium Direct Production
Technology from Waste Batteries

The existing technology for extracting lithium from batteries and cathode scraps
requires both dry and wet processes. Hydrometallurgical or wet
process individually recovers transition metals such as Ni, Co, Mn and collect Li at the final stage.
Such multi-stage process results in high energy consumption and the
production of large amount of wastewater and waste sludge.

SEM's direct lithium production technology (DLP Technology)
is a new innovative approach that efficiently and eco-friendly produces lithium
(lithium hydroxide, lithium carbonate) and NCM precursor directly from waste batteries after
a thermochemical reaction followed by selective Li leaching.

TECHNOLOGY
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SEM Co., Ltd. Technology

Direct Lithium Extraction
Technology (DLET) From Brine Pool

Brine reservoirs, the natural repositories rich in lithium, are vital for the global production of electric vehicle batteries.
Yet, the push to scale up lithium extraction from these sources is hindered by ecological concerns, including water scarcity, protracted production cycles extending beyond a year, and the suboptimal efficiency of current methods. To address these challenges, developers working with saline aquifers are in pursuit of groundbreaking technologies. Such advancements are expected to concurrently elevate production efficiency and reduce the environmental footprint.

TECHNOLOGY
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