Author name: Frontiercell

Cell Design & Structure, News & Trends

The Bottleneck in All-Solid-State Battery Mass Production, Beyond the Isostatic Press — M Plus Opens Up Planar-Pressure and Roll-Press Alternatives

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The bottleneck in all-solid-state battery mass production lies more in the pressing process than in chemistry, and the range of pressing options is widening now that Korean equipment maker M Plus announced on April 9, 2026 that it had completed development of planar-pressure press and roll-press technologies to replace the warm isostatic press (WIP) and had won a pilot equipment order.

ESS 화재 감지 특허와 냉각 제어 특허를 상징하는 두 개의 겹친 방패 모양 추상 일러스트, 중앙에 배터리 셀 실루엣
Patent Analysis

[Patent Analysis] Two ESS Fire-Safety Patents Head-to-Head — Acoustic Detection (KR102254734B1) vs. Temperature-Rise-Rate Cooling Control (KR102406230B1) and the Scope of Rights for Unmanned Distribution-Line ESS

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In the era of unmanned distribution-line ESS, fire detection and cooling control are split across two separate patents. This piece maps the claims of KR102254734B1 and KR102406230B1 element by element to analyze the scope of rights and the room for design-around.

배전선로에 연결된 배터리 에너지저장장치(ESS) 컨테이너와 태양광 패널을 표현한 추상 일러스트
News & Trends

Grid-Distribution ESS: How to Expand the Power System Without Building New Substations — What LG Energy Solution’s 7 Distribution Lines and 140MWh Mean

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Korea’s first grid-distribution ESS construction-support project installs ESS directly on distribution lines instead of expanding substations. This piece examines the market this opens up through LG Energy Solution’s win of 7 distribution lines and 140MWh, and the new challenge of fire safety at unmanned sites.

Patent Analysis

[Patent Analysis] AI Vision Defect Detection System Patent (KR102563230B1) — The Narrow Gate That an Integrated CCTV-Control Element Opens for Battery Inspection Equipment

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Breaking down, element by element, the claims of KR102563230B1 — an AI vision defect-detection patent registered for PCB inspection — this piece analyzes the infringement risk and design-around scenarios that arise when it is extended to battery electrode inspection equipment.

Patent Analysis

[Patent Analysis] A Deep Dive Into Tesla’s Foundational Tabless Patent (US11749842B2) — The Scope of Rights and Design-Around Options Underpinning the 46mm Cylindrical Cell Standard

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Above the LG Energy Solution–EVE Energy ITC investigation sits a higher layer: Tesla’s foundational tabless patent (US11749842B2). Mapping Claim 1’s elements into a claim chart, this piece examines the design freedom available to companies adopting the 46-series format.

News & Trends

46mm Cylindrical Cells, From a Mass-Production Race to a Patent War — LG Energy Solution vs. EVE Energy’s ITC Investigation Opens a Fork in the Tabless Standard

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As the 46mm cylindrical cell hardens into an industry standard, LG Energy Solution’s ITC Section 337-TA-1518 investigation against EVE Energy has brought tabless-cell patent risk to the surface. This piece also covers AESC’s 46120 mass production and JS Robotics’ automation-equipment order.

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