2022-04-12-德勤-德勤锂电白皮书系列之二_电池_风云_43页_9mb

China Lithium Industry Summary

Core Content

The China Lithium Industry report by Deloitte Consulting China, dated April 2022, provides an in-depth analysis of the current trends and future outlook for battery-grade lithium materials and technologies in the context of the global shift toward carbon neutrality and new energy vehicles (NEVs). The report highlights the evolution of lithium battery technologies, focusing on cathode and anode materials, structural innovations, and the development of solid-state and sodium-ion batteries.

Main Trends in Battery-Grade Lithium Materials

• Price Trends: Since 2021 H2, battery-grade lithium specialty materials have seen more than five-fold price increases, surpassing market expectations.
• Material Upgrades: Cathode and anode materials are central to improving energy density. High-nickel ternary materials are still compatible with the development of semi-solid to all-solid-state batteries.
• Cobalt-Free Ternary Materials: While the trend is to reduce cobalt content, the industrialization of fully cobalt-free materials is still in early stages and faces significant technical challenges.
• LMFP (LiFexMn1-xPO4): Seen as an upgrade from LFP, LMFP has regained popularity due to its potential for higher energy density, though it is not yet widely industrialized.
• Li-Rich Mn-Based Materials: These materials have the potential to increase energy density to 400 Wh/kg but are still in early stages of industrialization due to low initial coulombic efficiency and severe energy loss during cycling.

Anode Materials Development

• Silicon-Based Anode Materials: These materials offer higher theoretical capacity compared to graphite, making them a promising next-generation anode material.
• SiO and SiC Anode Materials: SiO anodes are more mature, with Japanese and Korean firms leading the market. SiC anodes are still in development, with Chinese firms lagging behind.
• Main Chinese Players: Companies like BTR, Shanshan Co, Gotion High-Tech, and Putailai are actively involved in silicon-based anode development, though most are still in testing or pilot production.

Structural Innovations

• BYD Blade Battery: A new generation of LFP battery designed to improve energy density, safety, and performance. It is being produced at multiple sites with planned capacities exceeding 100 GWh.
• CATL's CTP/CTC Approach: CATL is developing integrated battery systems that simplify structure and improve efficiency, aiming for direct integration of battery cells with vehicle chassis.
• Packaging Trends: Prismatic batteries dominate the Chinese market, while cylindrical batteries have seen increased adoption internationally, driven by Tesla and Panasonic.

Solid-State Battery Development

• Technical Routes: Three main routes—polymer, oxide, and sulphide—each with distinct advantages and challenges. Polymer is the first to commercialize but has low conductivity; oxide is making progress with Chinese companies supplying LLZO products; sulphide has high potential but faces significant R&D hurdles.
• Challenges: Interface resistance, low ionic conductivity in solid electrolytes, and issues with fast-charging and long-term stability are major technical barriers.
• Market Impact: Solid-state batteries are expected to increase lithium demand in anode materials, particularly with the use of lithium metal anodes. The report estimates a 42% CAGR for lithium demand from 2020 to 2025.

Sodium-Ion Battery Prospects

• Complementary Role: Sodium-ion batteries are expected to complement lithium batteries in low-energy density and mid/low-end applications, such as energy storage and low-speed vehicles.
• Cost and Resource Advantages: Sodium-ion batteries are more cost-effective and resource-abundant than lithium batteries, but their lower energy density limits their use in passenger EVs.

Case Studies

• Prologium: A leading company in solid-state battery development, focusing on oxide-based solid-state batteries. It has core technologies including Lithium Ceramic Battery, Multiaxial Bipolar Battery Pack, and Active Safety Mechanism. Prologium's solid-state batteries are expected to be mass-produced by 2024, with initial applications in consumer electronics and energy storage.
• Tesla's 4680 Battery: A large cylindrical battery that has driven significant R&D in the industry. Tesla's plans for mass production and integration with vehicle systems have attracted both international and Chinese battery manufacturers to adjust their strategies.

Key Takeaways

• The global lithium battery industry is growing rapidly, driven by the demand for EVs and carbon neutrality goals.
• Technological innovation is shifting from policy-driven to market-driven, with a focus on material upgrades and structural simplification.
• Solid-state batteries are expected to play a major role in the future due to their high energy density and safety, but face significant technical challenges.
• Sodium-ion batteries offer a cost-effective alternative but are not expected to replace lithium batteries in high-performance applications.
• The development of battery technologies is heavily influenced by major players such as BYD, CATL, and Tesla, with implications for the entire lithium battery supply chain.