BYD advances solid-state battery technology with new patents and 2027 production goal

BYD solid-state batteries electric vehicles battery patents pilot production

BYD is accelerating its development of next-generation solid-state battery technology, with plans to begin small-scale pilot production by 2027. The company recently filed six new patents aimed at resolving critical interface issues between solid electrolytes and electrodes, which can lead to micro-cracks and increased internal resistance during charge cycles. These patents describe a dual-electrolyte cathode architecture utilizing both halide and sulfide electrolytes to improve cycle life and thermal stability.

Technical benchmarks for BYD's developing technology include a 60 Ah pilot cell capable of approximately 400 Wh/kg energy density. The cells are designed to support 5C ultra-fast charging, potentially reaching 80% capacity in ten minutes, and are intended to maintain performance in extreme temperatures ranging from -40°C to 120°C.

In addition to battery advancements, BYD is updating its vehicle lineup, including the release of a new generation of the Seal 07 sedan. The updated model features increased dimensions and advanced driver-assistance technologies, such as LiDAR-supported DiPilot 5.0.

Entities

BYD · BYD Co. Ltd. · BYD Company Ltd · China National Intellectual Property Administration (CNIPA) · Chongqing · FinDreams · National Intellectual Property Administration of China · electric vehicles · solid‑state battery · solid‑state battery technology

Claims

What the coverage asserts, and how many sources carry each claim.

[● 4 SOURCES] Industry reports announce the first pilot production lines for solid‑state cells, marking a shift from lab to industrial scale. diariodelcauca.com.co · www.diariodelsur.com.co · extra.com.co · www.hsbnoticias.com
[● 4 SOURCES] Solid‑state batteries promise higher energy density, lower fire risk, faster charging, better low‑temperature performance and longer lifespan. diariodelcauca.com.co · www.diariodelsur.com.co · extra.com.co · www.hsbnoticias.com
[● 3 SOURCES] The patents address interface problems between solid electrolytes and electrodes to improve cycle life and thermal stability. www.autoprove.it · www.schmidtisblog.de · www.motorbox.com
[● 4 SOURCES] BYD filed six new patents related to solid‑state battery technology. www.autoprove.it · testcoches.es · www.schmidtisblog.de · www.motorbox.com
[● 3 SOURCES] BYD plans to start pilot production of solid-state cells in 2027, initially for test vehicles. www.schmidtisblog.de · forococheselectricos.com · www.intelligentliving.co
[● 2 SOURCES] A 60 Ah BYD solid-state cell from the Chongqing pilot line delivers about 400 Wh/kg and can charge to 80 % in ten minutes (5 C). testcoches.es · www.intelligentliving.co
[● 4 SOURCES] The patents focus on a dual-electrolyte cathode using halide and sulfide electrolytes. www.autoprove.it · www.schmidtisblog.de · www.motorbox.com · testcoches.es
[○ 1 SOURCE] BYD’s solid‑state battery uses a high‑nickel ternary cathode and a low‑expansion silicon anode, moving away from LFP chemistry. testcoches.es
[○ 1 SOURCE] The 60 Ah pilot cell is reported to have about 400 Wh/kg energy density and 800 Wh/L volumetric density. testcoches.es
[● 5 SOURCES] BYD filed six new patents on solid-state battery technology in 2024. www.autoprove.it · testcoches.es · www.schmidtisblog.de · www.motorbox.com · www.intelligentliving.co
[● 4 SOURCES] The pilot production is the first industrial‑scale manufacturing step for solid‑state batteries. diariodelcauca.com.co · www.diariodelsur.com.co · extra.com.co · www.hsbnoticias.com
[○ 1 SOURCE] BYD’s solid-state design uses a high-nickel ternary cathode and a low-expansion silicon anode. testcoches.es